JP7376509B2 - 制振材 - Google Patents
制振材 Download PDFInfo
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- JP7376509B2 JP7376509B2 JP2020562308A JP2020562308A JP7376509B2 JP 7376509 B2 JP7376509 B2 JP 7376509B2 JP 2020562308 A JP2020562308 A JP 2020562308A JP 2020562308 A JP2020562308 A JP 2020562308A JP 7376509 B2 JP7376509 B2 JP 7376509B2
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- layer
- viscoelastic
- constraining
- damping material
- core
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- 239000000463 material Substances 0.000 title claims description 98
- 238000013016 damping Methods 0.000 title claims description 80
- 239000010410 layer Substances 0.000 claims description 268
- 239000012792 core layer Substances 0.000 claims description 61
- 229910052751 metal Inorganic materials 0.000 claims description 22
- 239000002184 metal Substances 0.000 claims description 22
- 239000000835 fiber Substances 0.000 claims description 17
- 239000010408 film Substances 0.000 description 52
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 19
- 239000011162 core material Substances 0.000 description 14
- -1 polypropylene Polymers 0.000 description 14
- 239000004743 Polypropylene Substances 0.000 description 12
- 229920001155 polypropylene Polymers 0.000 description 12
- 239000004698 Polyethylene Substances 0.000 description 8
- 229920000573 polyethylene Polymers 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 229920001971 elastomer Polymers 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000011295 pitch Substances 0.000 description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 description 6
- 239000005020 polyethylene terephthalate Substances 0.000 description 6
- 230000000452 restraining effect Effects 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 239000004952 Polyamide Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000806 elastomer Substances 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 229920002647 polyamide Polymers 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 229920005992 thermoplastic resin Polymers 0.000 description 4
- 239000003190 viscoelastic substance Substances 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229920005549 butyl rubber Polymers 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 238000003856 thermoforming Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003522 acrylic cement Substances 0.000 description 1
- 229920000800 acrylic rubber Polymers 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000013001 point bending Methods 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000004154 testing of material Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/30—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium with solid or semi-solid material, e.g. pasty masses, as damping medium
- F16F9/306—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium with solid or semi-solid material, e.g. pasty masses, as damping medium of the constrained layer type, i.e. comprising one or more constrained viscoelastic layers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/085—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/18—Layered products comprising a layer of metal comprising iron or steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/08—Insulating elements, e.g. for sound insulation
- B60R13/0815—Acoustic or thermal insulation of passenger compartments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/106—Carbon fibres, e.g. graphite fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/56—Damping, energy absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2224/00—Materials; Material properties
- F16F2224/02—Materials; Material properties solids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2224/00—Materials; Material properties
- F16F2224/02—Materials; Material properties solids
- F16F2224/0208—Alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
- F16F2228/001—Specific functional characteristics in numerical form or in the form of equations
- F16F2228/005—Material properties, e.g. moduli
- F16F2228/007—Material properties, e.g. moduli of solids, e.g. hardness
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Laminated Bodies (AREA)
- Vibration Prevention Devices (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Description
第1の実施形態の制振材は、図1(a)に示すように、拘束層100と、その一方の面に設けられた粘弾性層200とを備える。なお、本発明の制振材は、騒音の発生源の側に粘弾性層200側が位置するように用いられ、すなわち、本発明の制振材は、粘弾性層200を車体のパネル300側に設置して車室内側に設けられる。
第2の実施形態の制振材は、図2及び図3に示すように、中空構造を有するコア層10と、このコア層10の一方の面に設けられた第1のフィルム層40と、コア層10の他方の面に設けられた第2のフィルム層50と、この第2のフィルム層50に接する粘弾性層200とを備える。コア層10と第1及び第2のフィルム層40、50の複層構造体が、上述した第1の実施形態の拘束層100となる。すなわち、拘束層100の第1のフィルム層40側の面のひずみεaと、第2のフィルム層50側の面のひずみεbとの比εa/εbが、0<εa/εb<1の式を満たす。なお、第1の実施形態と同様の構成については同様の符号を付し、ここでの詳細な説明は省略する。
第1及び第2の実施形態では、粘弾性層200が拘束層100に接する面が、拘束層100の粘弾性層200側の面と同じ面積の場合について説明してきたが、本発明はこれに限定されるものではない。第3の実施形態の制振材は、図7(a)~(c)の各例に示すように、粘弾性層200が、拘束層100の粘弾性層と接する側の面100bにおいて部分的に設けられているものである。なお、第1及び第2の実施形態と同様の構成については同様の符号を付し、ここでの詳細な説明は省略する。
第4の実施形態の制振材は、図8及び図9に示すように、コア層10と、このコア層10の一方の面に設けられた第1のフィルム層40と、コア層10の他方の面に順に設けられた第2のフィルム層50と繊維層60と、この繊維層60に接する粘弾性層200とを備える。コア層10と第1及び第2のフィルム層40、50と繊維層60の複層構造体が、上述した第1の実施形態の拘束層100となる。すなわち、拘束層100の第1のフィルム層40側の面のひずみεaと、繊維層60側の面のひずみεbとの比εa/εbが、0<εa/εb<1の式を満たす。なお、第1から第3の実施形態と同様の構成については同様の符号を付し、ここでの詳細な説明は省略する。
第5の実施形態の制振材は、図13に示すように、コア層10と、このコア層10の一方の面に順に設けられた第1のフィルム層40及び金属層70と、コア層10の他方の面に設けられた第2のフィルム層50と、この第2のフィルム層50に接する粘弾性層200とを備える。コア層10と第1及び第2のフィルム層40、50と金属層70の複層構造体が、上述した第1の実施形態の拘束層100となる。すなわち、拘束層100の金属層70側の面のひずみεaと、第2のフィルム層50側の面のひずみεbとの比εa/εbが、0<εa/εb<1の式を満たす。なお、第1から第3の実施形態と同様の構成については同様の符号を付し、ここでの詳細な説明は省略する。
第6の実施形態の制振材は、図14に示すように、拘束層100Rが、粘弾性層200Rの厚みが均一となるように、自動車のルーフのパネル300Rの形状に合わせて成形されている構造を有する。なお、第1の実施形態と同様の構成については同様の符号を付し、ここでの詳細な説明は省略する。
10 コア層
11 山部
12 谷部
13 側面部
14 底面部
15 山部接続面
16 谷部接続面
17 頂面
18 コア材料裏面
20 セル
21 閉鎖面
22 解放端
40 第1のフィルム層
50 第2のフィルム層
60 繊維層
70 金属層
100 拘束層
200 粘弾性層
300 パネル
Claims (8)
- 粘弾性層と、
前記粘弾性層の一方の面に設けられた拘束層と
を備える制振材であって、
前記拘束層が、筒状のセルが複数の列をなして配置されているコア層を少なくとも備える複層構造を有し、
前記コア層の前記セルの各々が、一方の端に閉鎖面、他方の端に開放端を有し、前記セルの前記開放端が、前記コア層の一方の面において、一列おきに配置されており、且つ前記コア層の他方の面において、上記とは異なるセルの列に、前記セルの前記開放端が配置されており、
前記拘束層の前記粘弾性層とは反対側の面のひずみεaと、前記拘束層の前記粘弾性層と接する側の面のひずみεbとの関係が、0<εa/εb<1である制振材。 - 前記粘弾性層の厚さが0.5~2mmの範囲にある請求項1に記載の制振材。
- 前記拘束層が、パネルに設置される側の粘弾性層の厚みが均一となるように、前記パネルの形状に合わせて成形されている構造を有する請求項1又は2に記載の制振材。
- 前記ひずみεaと前記ひずみεbとの関係が、0.2<εa/εb<0.7である請求項1~3のいずれか一項に記載の制振材。
- 前記拘束層が、前記コア層の両面にそれぞれ設けられたフィルム層を更に備え、前記フィルム層がそれぞれ、層を貫通する複数の開孔を有する請求項1に記載の制振材。
- 前記粘弾性層が、前記拘束層の前記粘弾性層と接する側の表面において部分的に設けられている請求項1~5のいずれか一項に記載の制振材。
- 前記拘束層が、前記拘束層の前記粘弾性層と接する側に、繊維層を備える複層構造を有する請求項1~6のいずれか一項に記載の制振材。
- 前記拘束層が、前記拘束層の前記粘弾性層と接する側とは反対側に、金属層を備える複層構造を有する請求項1~7のいずれか一項に記載の制振材。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2023183829A JP2023184598A (ja) | 2018-12-25 | 2023-10-26 | 制振材 |
Applications Claiming Priority (3)
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---|---|---|---|
JP2018241305 | 2018-12-25 | ||
JP2018241305 | 2018-12-25 | ||
PCT/JP2019/002329 WO2020136920A1 (ja) | 2018-12-25 | 2019-01-24 | 制振材 |
Related Child Applications (1)
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JP2023183829A Division JP2023184598A (ja) | 2018-12-25 | 2023-10-26 | 制振材 |
Publications (2)
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JPWO2020136920A1 JPWO2020136920A1 (ja) | 2021-12-09 |
JP7376509B2 true JP7376509B2 (ja) | 2023-11-08 |
Family
ID=71127821
Family Applications (2)
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---|---|---|---|
JP2020562308A Active JP7376509B2 (ja) | 2018-12-25 | 2019-01-24 | 制振材 |
JP2023183829A Pending JP2023184598A (ja) | 2018-12-25 | 2023-10-26 | 制振材 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2023183829A Pending JP2023184598A (ja) | 2018-12-25 | 2023-10-26 | 制振材 |
Country Status (6)
Country | Link |
---|---|
US (2) | US11959525B2 (ja) |
EP (1) | EP3904722A4 (ja) |
JP (2) | JP7376509B2 (ja) |
CN (1) | CN112639326B (ja) |
MX (1) | MX2021001713A (ja) |
WO (1) | WO2020136920A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7187053B2 (ja) * | 2019-01-25 | 2022-12-12 | MT-Tec合同会社 | 車両用内装材 |
US12039963B2 (en) * | 2019-02-13 | 2024-07-16 | Nissan Motor Co., Ltd. | Soundproofing structure |
US12039962B2 (en) * | 2019-02-13 | 2024-07-16 | Nissan Motor Co., Ltd. | Soundproofing structure |
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