CN103177157A - Computing method for radial stress of equivalent structure circular sandwich valve plate of absorber - Google Patents

Computing method for radial stress of equivalent structure circular sandwich valve plate of absorber Download PDF

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Publication number
CN103177157A
CN103177157A CN2013100734617A CN201310073461A CN103177157A CN 103177157 A CN103177157 A CN 103177157A CN 2013100734617 A CN2013100734617 A CN 2013100734617A CN 201310073461 A CN201310073461 A CN 201310073461A CN 103177157 A CN103177157 A CN 103177157A
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valve block
radial stress
radius
stack valve
thickness
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周长城
宋群
提艳
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Shandong University of Technology
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Shandong University of Technology
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Abstract

The invention relates to a computing method for radial stress of an equivalent structure circular sandwich valve plate of an absorber, and belongs to the absorber technical field. An accurate computing method for the radial stress of the equivalent structure circular sandwich valve plate does not exist previously, software of finite element analysis (ANSYS) is utilized to conduct numerical value simulating calculation mostly, and therefore the requirements of absorber design and stress intensity calculation of the equivalent structure circular sandwich valve plate can not be met. The computing method for radial stress of the equivalent structure circular sandwich valve plate of the absorber is characterized in that for equivalent structure circular sandwich valve plates with same material characteristics and same diameters of inner circle and outer circle, radial stress of sandwich valve plates in any diameter positions can be calculated accurately according to thickness, numbers and stress of the sandwich valve plates. A simulation verification result of the ANSYS shows that the computing method for radial stress of the equivalent structure circular sandwich valve plate of the absorber is accurate, and provides a reliable computing method for radial stress of the equivalent structure circular sandwich valve plate for actual sandwich valve plate design and stress intensity calculation.

Description

The computing method of the structures such as vibration damper annular stack valve block radial stress
Technical field
The present invention relates to hydraulic buffer, particularly the computing method of the structure such as vibration damper annular stack valve block radial stress.
Background technology
In order to reduce manufacturing cost, satisfy vibration damper different qualities, valve block stress intensity and manufacturing technique requirent, actual Throttle Slice of Shock Absorber is mostly to adopt the multi-disc stack that material behavior is identical, interior radius of circle is equal with exradius, namely wait structure annular stack valve block, each valve block that superposes is mostly that the standard thicknesses that adopt namely serial more h 1, h 2..., h nThe stack valve block is mostly that the valve block by 0.1 ~ 0.3mm thickness is formed by stacking, the most key accurate core parts of vibration damper, the damping characteristic of the deformation effect vibration damper of stack valve block, the stress of stack valve block is determining the life-span of vibration damper, realize that accurate design and the stress intensity of vibration damper stack valve block check, must carry out accurate Calculation to the superpose radial stress of valve block of vibration damper.Yet, radial stress for the structures such as vibration damper annular stack valve block is calculated, predecessor State is inside and outside equal to easy, accurate computing method, mostly to utilize the finite element emulation software such as ANSYS, by setting up the entity simulation model, numerical simulation calculating is carried out in the radially utilization of the annular stack of equity structure valve block, but because finite element emulation software lacks easy, accurate analytical formula or computing method reliably, is difficult to satisfy the requirement that actual vibration damper superposes the valve block design and produces.
Along with the fast development of auto industry and improving constantly of travel speed, vibration damper and the design of stack valve block are had higher requirement, realize accurate design and the stress intensity check of vibration damper stack valve block, the computing method of the structure annular stack valve block radial stresses such as a kind of accurate vibration damper must be provided, realization is carried out accurate Calculation to the radial stress of stack valve block, satisfy accurately design and the actual production requirement of actual vibration damper stack valve block, improve absorber designing quality, performance and serviceable life.
Summary of the invention
For the defective that exists in above-mentioned prior art, technical matters to be solved by this invention is to provide the computing method of the structure annular stack valve block radial stresses such as a kind of easy, accurate, reliable vibration damper, and its calculation process as shown in Figure 1.
In order to solve the problems of the technologies described above, the computing method of the structures such as vibration damper provided by the present invention annular stack valve block radial stress, the mechanical model of the structures such as actual vibration damper annular stack valve block as shown in Figure 2, its technical scheme implementation step is as follows:
(1) determine to wait the equivalent thickness of structure annular stack valve block h e:
, interior radius of circle identical for material behavior And exradius
Figure 257444DEST_PATH_IMAGE002
The annular stack valve block that equates, according to the thickness of each sheet of stack valve block and sheet number ( h 1, n 1 h 2, n 2 h n , n n), determine the equivalent thickness of the structure such as vibration damper annular stack valve block
Figure 115679DEST_PATH_IMAGE003
For:
Figure 196767DEST_PATH_IMAGE004
；
(2) determine to wait the thickness proportion coefficient of structure annular stack valve block k hi :
, interior radius of circle identical for material behavior
Figure 140453DEST_PATH_IMAGE001
And exradius
Figure 230768DEST_PATH_IMAGE002
The annular stack valve block that equates, according to the thickness of each sheet of stack valve block and sheet number ( h 1, n 1 h 2, n 2 h n , n n) and step (1) in
Figure 952299DEST_PATH_IMAGE003
, determine each monolithic different-thickness stack valve block in the structure such as vibration damper annular stack valve block h 1, h 2, h n Scale-up factor k h i Be respectively:
k h 1
Figure 938709DEST_PATH_IMAGE005
，
Figure 104111DEST_PATH_IMAGE006
，…，
Figure 201380DEST_PATH_IMAGE007
；
(3) calculating waits structure annular stack valve block meaning radius in office rThe radial stress coefficient :
Interior radius of circle according to vibration damper annular elastic valve plate , exradius
Figure 844217DEST_PATH_IMAGE002
, Poisson ratio μ, calculate stack valve block meaning radius in office r(
Figure 745177DEST_PATH_IMAGE009
) the radial stress coefficient located
Figure 432510DEST_PATH_IMAGE008
For:
Figure 760723DEST_PATH_IMAGE010
；
In formula,
Figure 900718DEST_PATH_IMAGE011
,
Figure 808631DEST_PATH_IMAGE012
Figure 881629DEST_PATH_IMAGE013
，
Figure 849585DEST_PATH_IMAGE014
,
Figure 476876DEST_PATH_IMAGE015
， ，
Figure 115984DEST_PATH_IMAGE017
，
Figure 788930DEST_PATH_IMAGE018
，
Figure 903516DEST_PATH_IMAGE019
， ，
Figure 200823DEST_PATH_IMAGE021
，
Figure 510581DEST_PATH_IMAGE022
，
Figure 112464DEST_PATH_IMAGE023
；
Wherein, work as radius rBe interior radius of circle
Figure 697029DEST_PATH_IMAGE001
The time,
Figure 67967DEST_PATH_IMAGE008
Superpose valve block exactly at the radial stress coefficient of inner circle radius, that is:
Figure 79786DEST_PATH_IMAGE024
；
(4) calculating respectively superposes valve block at any radius rThe valve block radial stress of position
Figure 637806DEST_PATH_IMAGE025
And maximum radial stress
Figure 760483DEST_PATH_IMAGE026
:
According to waiting structure annular stack valve block pressure p, in step (2) k h1 , ..., , and in step (3)
Figure 745122DEST_PATH_IMAGE008
With
Figure 671490DEST_PATH_IMAGE029
, to thickness be h 1, h 2, h n The valve block that respectively superposes at radius rThe radial stress at place
Figure 17021DEST_PATH_IMAGE025
And at interior radius of circle
Figure 839483DEST_PATH_IMAGE001
The maximum radial stress at place Calculate respectively, that is:
，
Figure 564841DEST_PATH_IMAGE031
，
Figure 89363DEST_PATH_IMAGE032
，…， ；
Figure 111863DEST_PATH_IMAGE034
，
Figure 166407DEST_PATH_IMAGE035
，
Figure 127409DEST_PATH_IMAGE036
，…，
Figure 900193DEST_PATH_IMAGE037
。
The present invention has advantages of than prior art:
Due to the restriction that is subjected to various vibration-damper characterist requirements and valve block stress intensity, production technology and cost, actual Throttle Slice of Shock Absorber is mostly the structure annular stack valve blocks such as employing multi-disc.Before calculated without easy, accurate computing method for the structures such as vibration damper annular stack valve block radial stress, mostly can only utilize the ANSYS finite element emulation software, by setting up the entity simulation model, equity structure annular stack valve block radial stress is carried out numerical simulation and is calculated, the radial stress value that obtains being similar to is difficult to satisfy the requirement of vibration damper stack valve block design and stress intensity check.The annular stack valve block that the present invention is identical for material behavior, interior radius of circle is equal with exradius, according to the stack thickness of valve block and sheet number and the pressure that bears, can carry out accurate Calculation to the radial stress of stack valve block meaning radial position in office and at the maximum radial stress of inner circle radius.By with the ANSYS simulation result more as can be known, the computing method of the structures such as this vibration damper annular stack valve block radial stress are accurate, calculate for fractionation design, the stress intensity of actual vibration damper stack valve block, the reliable computing method that wait structure annular stack valve block radial stress are provided.
Be further described below in conjunction with accompanying drawing in order to understand better the present invention.
Fig. 1 is the structure annular stack valve block deformation gauge calculation process flow diagrams such as vibration damper;
Fig. 2 is the structure annular stack valve block mechanical models such as vibration damper;
Fig. 3 is that the structures such as the vibration damper annular of embodiment one superposes valve block radial stress coefficient with radius rChange curve;
Fig. 4 is that the structures such as the vibration damper annular of embodiment one superposes the valve block radial stress with radius rChange curve;
Fig. 5 is the structures such as the vibration damper annular stack valve block radial stress emulation cloud atlas of embodiment one;
Fig. 6 is that the structures such as the vibration damper annular of embodiment two superposes the valve block radial stress with radius rChange curve;
Fig. 7 is that the structures such as the vibration damper annular of embodiment three superposes valve block radial stress coefficient with radius rChange curve;
Fig. 8 is that the structures such as the vibration damper annular of embodiment three superposes the valve block radial stress with radius rChange curve;
Fig. 9 is the structures such as the vibration damper annular stack valve block radial stress emulation cloud atlas of embodiment three.
Specific embodiments
Below by embodiment, the present invention is described in further detail.
Embodiment one:The interior radius of circle of the structures such as certain vibration damper annular stack valve block r a=5.0mm, exradius r b=8.5mm, the valve port radius =8.0mm, elastic modulus E=200GPa, Poisson ratio μ=0.3, thickness and the sheet number of stack valve block are respectively h 1=0.1mm, n 1=3; h 2=0.15mm, n 2=2; h 3=0.2mm, n 3=1, well-distributed pressure p=3.0MPa.
(1) determine to wait the equivalent thickness of structure annular stack valve block h e:
Thickness and sheet number according to the structures such as certain vibration damper annular stack valve block h 1=0.1mm, n 1=3; h 2=0.15mm, n 2=2; h 3=0.2mm, n 3=1, wait the equivalent thickness of structure annular stack valve block h eFor:
Figure 349946DEST_PATH_IMAGE039
0.260855mm；
(2) determine to wait the thickness proportion coefficient of structure annular stack valve block k hi :
According to the thickness that waits structure annular stack valve block h 1=0.1mm, h 2=0.15mm, h 3=0.2mm, and the equivalent thickness in step (1) h e=0.260855mm, the thickness proportion coefficient of definite valve block that respectively superposes is respectively:
k h 1
Figure 747429DEST_PATH_IMAGE005
=0.38335， =0.575，
Figure 86324DEST_PATH_IMAGE040
= 0.7667；
(3) calculating waits structure annular stack valve block meaning radius in office rThe radial stress coefficient
Figure 115460DEST_PATH_IMAGE008
:
Interior radius of circle according to the structures such as vibration damper annular stack valve block
Figure 418265DEST_PATH_IMAGE001
=5.0mm, exradius
Figure 900062DEST_PATH_IMAGE002
=8.5mm, Poisson ratio μ=0.3, calculate stack valve block meaning radius in office r(
Figure 782568DEST_PATH_IMAGE009
) the radial stress coefficient located
Figure 666210DEST_PATH_IMAGE008
For:
Figure 139917DEST_PATH_IMAGE010
In formula, ,
Figure 63715DEST_PATH_IMAGE012
；
，
Figure 180892DEST_PATH_IMAGE042
，
Figure 637281DEST_PATH_IMAGE043
,
=
Figure 985403DEST_PATH_IMAGE044
；
Figure 800912DEST_PATH_IMAGE016
=200，
Figure 744598DEST_PATH_IMAGE017
=
Figure 303755DEST_PATH_IMAGE045
，
Figure 485338DEST_PATH_IMAGE018
=0.01，
Figure 206169DEST_PATH_IMAGE019
=5
Figure 637150DEST_PATH_IMAGE046
，
Figure 734419DEST_PATH_IMAGE020
=
Figure 36088DEST_PATH_IMAGE047
，
Figure 927820DEST_PATH_IMAGE021
=
Figure 846098DEST_PATH_IMAGE048
，
Figure 747058DEST_PATH_IMAGE022
=2.6，
Figure 168812DEST_PATH_IMAGE023
=9.537
Figure 497025DEST_PATH_IMAGE049
；
Calculate stack valve block meaning radius in office r(
Figure 105861DEST_PATH_IMAGE009
) the radial stress coefficient located
Figure 819301DEST_PATH_IMAGE008
With radius rChange curve, as shown in Figure 3, wherein, at interior radius of circle
Figure 361140DEST_PATH_IMAGE001
The radial stress coefficient at=5.0mm place
Figure 860255DEST_PATH_IMAGE029
=
Figure 956387DEST_PATH_IMAGE050
mm 2/ N=
Figure 199149DEST_PATH_IMAGE051
(4) calculating respectively superposes valve block at any radius rThe valve block radial stress of position
Figure 595496DEST_PATH_IMAGE052
And maximum radial stress
Figure 265511DEST_PATH_IMAGE053
:
According in step (1) h e=0.260855mm, in step (2) k h1 =0.38335,
Figure 380098DEST_PATH_IMAGE027
=0.575 He
Figure 629814DEST_PATH_IMAGE054
=0.7667, in step (3)
Figure 146246DEST_PATH_IMAGE008
With
Figure 987163DEST_PATH_IMAGE029
, at well-distributed pressure pIn=3.0MPa situation, thickness is respectively h 1=0.1mm, h 2=0.15mm, h 3The valve block that respectively superposes of=0.2mm is at radius rThe radial stress at place
Figure 589045DEST_PATH_IMAGE052
Calculate respectively, namely
Figure 173610DEST_PATH_IMAGE055
，
Figure 544549DEST_PATH_IMAGE031
， ；
Calculate the resulting valve block that respectively superposes h 1=0.1mm, h 2=0.15mm and h 3The radial stress of=0.2mm is with radius rChange curve, as shown in Figure 4, wherein, each valve block that superposes h 1=0.1mm, h 2=0.15mm and h 3=0.2mm is at interior radius of circle
Figure 848808DEST_PATH_IMAGE001
The maximum radial stress at place
Figure 237064DEST_PATH_IMAGE026
Be respectively:
Figure 462509DEST_PATH_IMAGE056
806.63MPa，
Figure 645229DEST_PATH_IMAGE057
=1209.95MPa，
Figure 690545DEST_PATH_IMAGE058
=1613.26MPa。
Interior radius of circle according to vibration damper annular Sandwich plate valve sheet r a=5.0mm, exradius r b=8.5mm, elastic model E=200GPa, Poisson ratio μ=0.3, and thickness and the sheet number of stack valve block, namely h 1=0.1mm, n 1=3; h 2=0.15mm, n 2=2; h 3=0.2mm, n 3=1; Utilize ANSYS to set up stack valve block realistic model, the grid dividing unit is 0.1mm, is applying identical well-distributed pressure pIn=3.0MPa situation, the resulting stack valve block of emulation radial stress emulation cloud atlas, as shown in Figure 5.
As shown in Figure 5, the simulation value of stack valve block maximum radial stress is 1600MPa, and utilize the deviation between the resulting maximum radial stress of these computing method 1613.26MPa to be 13.26MPa, relative deviation is only 0.82%, the computing method that show the structures such as the vibration damper annular stack valve block radial stress that the present invention sets up are accurate, for setting up accurate vibration damper throttling valve parameter designing and characteristic Simulation mathematical model, the computing method of the structures such as reliable vibration damper annular stack valve block radial stress are provided.
Embodiment two:Identical in the structural parameters of the structures such as certain vibration damper annular stack valve block and material characteristic parameter and embodiment one, thickness and the sheet number of the valve block that superposes are respectively h 1=0.1mm, n 1=1; h 2=0.15mm, n 2=1; h 3=0.2mm, n 3=1, pressure p=3.0MPa.
Adopt the identical step of embodiment one, that is:
(1) determine the equivalent thickness of the structure such as vibration damper annular stack valve block h e:
According to the thickness and the sheet number that wait structure annular stack valve block h 1=0.1mm, n 1=1; h 2=0.15mm, n 2=1; h 3=0.2mm, n 3=1, determine the equivalent thickness of the structure such as vibration damper annular stack valve block h eFor:
Figure 619843DEST_PATH_IMAGE059
= 0.231303mm；
(2) the thickness proportion coefficient of definite valve block that respectively superposes:
According to the thickness that waits structure annular stack valve block h 1=0.1mm, h 2=0.15mm, h 3=0.2mm, and the equivalent thickness in step (1) h e=0.231303mm, the thickness proportion coefficient of definite valve block that respectively superposes is respectively:
k h 1
Figure 699794DEST_PATH_IMAGE005
= 0.43233，
Figure 318994DEST_PATH_IMAGE006
= 0.6485，
Figure 117186DEST_PATH_IMAGE040
= 0.8646666；
(3) calculating waits structure annular stack valve block meaning radius in office rThe radial stress coefficient :
Because vibration damper Sandwich plate valve sheet material characteristic and the inside and outside radius of circle of embodiment two are all identical with embodiment one, therefore, the stack valve block of embodiment two meaning radius in office r(
Figure 250544DEST_PATH_IMAGE009
) the radial stress coefficient located
Figure 40646DEST_PATH_IMAGE008
Identical with embodiment one;
(4) calculating respectively superposes valve block at any radius rThe valve block radial stress of position
Figure 326134DEST_PATH_IMAGE025
And maximum radial stress
According in step (2) k h1 =0.43233,
Figure 117689DEST_PATH_IMAGE027
=0.6485 He
Figure 78692DEST_PATH_IMAGE054
=0.8646666; In step (3)
Figure 585897DEST_PATH_IMAGE008
And
Figure 657758DEST_PATH_IMAGE029
, at well-distributed pressure pIn=3.0MPa situation, thickness is respectively h 1=0.1mm, h 2=0.15mm, h 3The valve block that respectively superposes of=0.2mm is at radius rThe radial stress at place Calculate respectively, that is:
Figure 167554DEST_PATH_IMAGE055
，
Figure 427634DEST_PATH_IMAGE031
， ；
Calculate the resulting valve block that respectively superposes h 1=0.1mm, h 2=0.15mm and h 3The radial stress of=0.2mm is with radius rChange curve, as shown in Figure 6, wherein, each valve block that superposes is at interior radius of circle
Figure 66742DEST_PATH_IMAGE001
The maximum radial stress at place
Figure 572810DEST_PATH_IMAGE061
Be respectively:
1156.98MPa，
Figure 730920DEST_PATH_IMAGE063
= 1735.48MPa，
Figure 614563DEST_PATH_IMAGE064
=2313.97MPa。
Embodiment three:Material characteristic parameter, the interior radius of circle of the structures such as certain vibration damper annular stack valve block are identical with embodiment's one, exradius
Figure 88269DEST_PATH_IMAGE002
=8.75mm, thickness and the sheet number of stack valve block are respectively h 1=0.15mm, n 1=1; h 2=0.2mm, n 2=3, suffered well-distributed pressure p=3.0MPa.
Adopt and the identical step of embodiment one, that is:
(1) determine to wait the equivalent thickness of structure annular stack valve block h e:
Thickness and sheet number according to the stack valve block h 1=0.15mm, n 1=1; h 2=0.20mm, n 2=3, for:
= 0.30138mm；
(2) the thickness proportion coefficient of definite valve block that respectively superposes:
According to the thickness that waits structure annular stack valve block h 1=0.15mm, h 2=0.2mm, and the equivalent thickness in step (1) h e=0.30138mm, the thickness proportion coefficient of definite valve block that respectively superposes is respectively:
k h 1 = 0.49771， = 0.663614
(3) calculating waits structure annular stack valve block meaning radius in office rThe radial stress coefficient
Figure 860736DEST_PATH_IMAGE008
:
Interior radius of circle according to the structures such as vibration damper annular stack valve block =5.0mm, exradius
Figure 72592DEST_PATH_IMAGE002
=8.75mm, E=200GPa, Poisson ratio μ=0.3, calculate stack valve block meaning radius in office r(
Figure 399668DEST_PATH_IMAGE009
) the radial stress coefficient located
Figure 215177DEST_PATH_IMAGE008
For:
Figure 158862DEST_PATH_IMAGE010
In formula,
Figure 452441DEST_PATH_IMAGE011
,
Figure 634023DEST_PATH_IMAGE012
；
Figure 620434DEST_PATH_IMAGE066
，
Figure 51415DEST_PATH_IMAGE067
，
Figure 148684DEST_PATH_IMAGE068
,
Figure 715932DEST_PATH_IMAGE015
=
Figure 342085DEST_PATH_IMAGE069
；
In formula,
Figure 260362DEST_PATH_IMAGE016
,
Figure 898673DEST_PATH_IMAGE017
,
Figure 586006DEST_PATH_IMAGE018
, ,
Figure 523055DEST_PATH_IMAGE020
,
Figure 227706DEST_PATH_IMAGE021
,
Figure 769546DEST_PATH_IMAGE022
,
Figure 268660DEST_PATH_IMAGE023
Calculate stack valve block meaning radius in office r( ) the radial stress coefficient located With radius rChange curve, as shown in Figure 7; Wherein at interior radius of circle
Figure 3901DEST_PATH_IMAGE001
The radial stress coefficient at=5.0mm place
Figure 673917DEST_PATH_IMAGE029
=
Figure 788503DEST_PATH_IMAGE070
(4) calculating respectively superposes valve block at any radius rThe valve block radial stress of position And maximum radial stress
Figure 554651DEST_PATH_IMAGE061
:
According in step (2) k h1 =0.49771 He
Figure 395568DEST_PATH_IMAGE027
=0.663614, and in rapid (3) And
Figure 113174DEST_PATH_IMAGE029
, at well-distributed pressure pIn=3.0MPa situation, the stack valve block h 1=0.15mm and h 2=0.12mm is at radius rThe radial stress at place
Figure 484113DEST_PATH_IMAGE025
Calculate respectively, that is:
Figure 504720DEST_PATH_IMAGE055
，
Figure 328320DEST_PATH_IMAGE031
；
Calculate resulting stack valve block h 1=0.15mm and h 2The radial stress of=0.12mm is with radius rChange curve, as shown in Figure 8, wherein, the stack valve block at interior radius of circle
Figure 247734DEST_PATH_IMAGE001
The maximum radial stress at place
Figure 942021DEST_PATH_IMAGE061
Be respectively:
Figure 124740DEST_PATH_IMAGE071
911.773MPa， =1215.697MPa。
Interior radius of circle according to vibration damper annular Sandwich plate valve sheet r a=5.0mm, exradius r b=8.75mm, elastic model E=200GPa, Poisson ratio μ=0.3, stack throttle slice thickness and sheet number are h 1=0.15mm, n 1=1; h 2=0.20mm, n 2=3, utilize ANSYS to set up stack valve block realistic model, the grid dividing unit is 0.1mm, is applying identical well-distributed pressure pIn=3.0MPa situation, the stack valve block radial stress emulation cloud atlas that obtains, as shown in Figure 9.
As shown in Figure 9, at well-distributed pressure pUnder=3.0MPa, the simulation value of this stack valve block maximum radial stress is 1200MPa, and utilize the deviation between the resulting maximum distortion 1215.697MPa of these computing method to be 15.697MPa, relative deviation is only 1.29%, shows that the computing method of the structures such as the vibration damper annular stack valve block radial stress that the present invention sets up are accurate.

Claims (2)

1. the computing method of the structure such as vibration damper annular stack valve block radial stress, its concrete steps are as follows:
(1) determine to wait the equivalent thickness of structure annular stack valve block h e:
, interior radius of circle identical for material behavior
Figure 2013100734617100001DEST_PATH_IMAGE002
And exradius
Figure 2013100734617100001DEST_PATH_IMAGE004
The annular stack valve block that equates, according to the thickness of each sheet of stack valve block and sheet number ( h 1, n 1 h 2, n 2 h n , n n), determine the equivalent thickness of the structure such as vibration damper annular stack valve block
Figure 2013100734617100001DEST_PATH_IMAGE006
For:
Figure 2013100734617100001DEST_PATH_IMAGE008
；
(2) determine to wait the thickness proportion coefficient of structure annular stack valve block k hi :
, interior radius of circle identical for material behavior
Figure 946583DEST_PATH_IMAGE002
And exradius
Figure 23605DEST_PATH_IMAGE004
The annular stack valve block that equates, according to the thickness of each sheet of stack valve block and sheet number ( h 1, n 1 h 2, n 2 h n , n n) and step (1) in
Figure 642805DEST_PATH_IMAGE006
, determine each monolithic different-thickness stack valve block in the structure such as vibration damper annular stack valve block h 1, h 2, h n Scale-up factor k h i Be respectively:
k h 1
Figure 2013100734617100001DEST_PATH_IMAGE010
，
Figure 2013100734617100001DEST_PATH_IMAGE012
，…，
Figure 2013100734617100001DEST_PATH_IMAGE014
；
(3) calculating waits structure annular stack valve block meaning radius in office rThe radial stress coefficient
Figure 2013100734617100001DEST_PATH_IMAGE016
:
Interior radius of circle according to vibration damper annular elastic valve plate , exradius
Figure 498951DEST_PATH_IMAGE004
, Poisson ratio μ, calculate stack valve block meaning radius in office r(
Figure 2013100734617100001DEST_PATH_IMAGE018
) the radial stress coefficient located
Figure 698989DEST_PATH_IMAGE016
For:
Figure 2013100734617100001DEST_PATH_IMAGE020
；
In formula,
Figure 2013100734617100001DEST_PATH_IMAGE022
,
Figure 2013100734617100001DEST_PATH_IMAGE024
Figure 2013100734617100001DEST_PATH_IMAGE026
，
Figure 2013100734617100001DEST_PATH_IMAGE028
,
Figure 2013100734617100001DEST_PATH_IMAGE030
，
Figure 2013100734617100001DEST_PATH_IMAGE032
，
Figure 2013100734617100001DEST_PATH_IMAGE034
， ，
Figure 2013100734617100001DEST_PATH_IMAGE038
，
Figure 2013100734617100001DEST_PATH_IMAGE040
，
Figure 2013100734617100001DEST_PATH_IMAGE042
，
Figure 2013100734617100001DEST_PATH_IMAGE044
，
Figure 2013100734617100001DEST_PATH_IMAGE046
；
Wherein, work as radius rBe interior radius of circle
Figure 803604DEST_PATH_IMAGE002
The time,
Figure 354671DEST_PATH_IMAGE016
Superpose valve block exactly at the radial stress coefficient of inner circle radius, that is:
Figure 2013100734617100001DEST_PATH_IMAGE048
；
(4) calculating respectively superposes valve block at any radius rThe valve block radial stress of position
Figure 2013100734617100001DEST_PATH_IMAGE050
And maximum radial stress
Figure 2013100734617100001DEST_PATH_IMAGE052
:
According to waiting structure annular stack valve block pressure p, in step (2) k h1 ,
Figure 2013100734617100001DEST_PATH_IMAGE054
...,
Figure 2013100734617100001DEST_PATH_IMAGE056
, and in step (3) With
Figure 2013100734617100001DEST_PATH_IMAGE058
, to thickness be h 1, h 2, h n The valve block that respectively superposes at radius rThe radial stress at place
Figure 536440DEST_PATH_IMAGE050
And at interior radius of circle
Figure 231863DEST_PATH_IMAGE002
The maximum radial stress at place
Figure 4647DEST_PATH_IMAGE052
Calculate respectively, that is:
Figure 2013100734617100001DEST_PATH_IMAGE060
，
Figure 2013100734617100001DEST_PATH_IMAGE062
，
Figure 2013100734617100001DEST_PATH_IMAGE064
，…，
Figure 2013100734617100001DEST_PATH_IMAGE066
；
Figure 2013100734617100001DEST_PATH_IMAGE068
，
Figure 2013100734617100001DEST_PATH_IMAGE070
，
Figure 2013100734617100001DEST_PATH_IMAGE072
，…，
Figure 2013100734617100001DEST_PATH_IMAGE074
。
2. the step of method (4) according to claim 1, is characterized in that: the meaning radius in office of the stack valve block in step (3) rThe radial stress coefficient of position And at interior radius of circle The radial stress coefficient of position
Figure 782044DEST_PATH_IMAGE058
Reach according to the thickness proportion coefficient that respectively waits structure annular stack valve block in step (2), to the radial stress of the annular valve block meaning radial location in office that superposes such as each structure such as grade And at interior radius of circle
Figure 120939DEST_PATH_IMAGE002
The maximum radial stress of position Calculate.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105160136A (en) * 2015-10-08 2015-12-16 山东理工大学 Method for calculating maximum radial stress of unequal-thickness annular valve slice of hydro-pneumatic spring
CN110096772A (en) * 2019-04-17 2019-08-06 大连理工大学 A kind of shape position error feature database method for building up of Aviation space flight shell structure

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030000336A1 (en) * 2000-06-27 2003-01-02 Tsai Stephen W. Composite rotors for flywheels and methods of fabrication thereof
CN102081692A (en) * 2011-01-06 2011-06-01 西北工业大学 Method for keeping design dependence load equivalent in topological optimization

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030000336A1 (en) * 2000-06-27 2003-01-02 Tsai Stephen W. Composite rotors for flywheels and methods of fabrication thereof
CN102081692A (en) * 2011-01-06 2011-06-01 西北工业大学 Method for keeping design dependence load equivalent in topological optimization

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
周长城，顾亮: "多片叠合节流阀片的设计及应力分析", 《机械强度》, vol. 29, no. 2, 30 April 2007 (2007-04-30), pages 324 - 328 *
李红艳，周长城，高炳凯: "非均布压力下的减振器节流阀片应力解析计算", 《山大理工大学学报（自然科学版）》, vol. 26, no. 1, 25 January 2012 (2012-01-25), pages 5 - 10 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105160136A (en) * 2015-10-08 2015-12-16 山东理工大学 Method for calculating maximum radial stress of unequal-thickness annular valve slice of hydro-pneumatic spring
CN110096772A (en) * 2019-04-17 2019-08-06 大连理工大学 A kind of shape position error feature database method for building up of Aviation space flight shell structure
CN110096772B (en) * 2019-04-17 2022-10-25 大连理工大学 Method for establishing shape and position deviation feature library for aerospace thin shell structure

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