SU1536213A1 - Method of measuring the mass of continuous articles - Google Patents

Method of measuring the mass of continuous articles Download PDF

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Publication number
SU1536213A1
SU1536213A1 SU874281461A SU4281461A SU1536213A1 SU 1536213 A1 SU1536213 A1 SU 1536213A1 SU 874281461 A SU874281461 A SU 874281461A SU 4281461 A SU4281461 A SU 4281461A SU 1536213 A1 SU1536213 A1 SU 1536213A1
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SU
USSR - Soviet Union
Prior art keywords
mass
product
measuring
measured
maximum deflection
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Application number
SU874281461A
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Russian (ru)
Inventor
Виктор Иванович Коробко
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В.И.Коробка
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Priority to SU874281461A priority Critical patent/SU1536213A1/en
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Publication of SU1536213A1 publication Critical patent/SU1536213A1/en

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  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

Изобретение относитс  к способам измерени  массы, в частности к измерению массы прот женных изделий, и позвол ет расширить область применени  за счет измерени  массы изделий переменной жесткости, закрепленных с двух концов. Согласно способу нагружают изделие равномерно распределенной нагрузкой, измер ют максимальный прогиб, возбуждают и измер ют резонансную частоту колебаний и по расчетной формуле определ ют погонную массу издели .The invention relates to methods for measuring mass, in particular, to measuring the mass of extended products, and allows to expand the field of application by measuring the mass of products of variable stiffness attached at both ends. According to the method, the product is loaded with a uniformly distributed load, the maximum deflection is measured, the resonance frequency of oscillation is measured and measured, and the linear mass of the product is determined using a calculation formula.

Description

Изобретение относитс  к весоизме- рительной технике, а именно к способам определени  массы прот женных изделий , в частности элементов конструкций , закрепленных в реконструируемых сооружени х.The invention relates to a weight-measuring technique, in particular, to methods for determining the mass of extended products, in particular structural elements, fixed in reconstructed structures.

Целью изобретени   вл етс  расширение области применени  за счет измерени  массы изделий переменной жесткости.The aim of the invention is to expand the field of application by measuring the mass of products of variable stiffness.

Сущность способа заключаетс  в том, что в балке, произвольно зак- крепленной по концам (например, оба конца шарнирно или жестко закреплены, или один конец жестко закреплен, а другой шарнирно), погонную массу которой необходимо определить, возбуждают резонансную частоту колебаний f и измер ют ее, нагружают балку равномерно распределенной нагрузкой интенсивностью замер ют максимальный прогиб балки w0 от этой нагрузки, после чего по известной зависимости определ ют погонную массу балки:The essence of the method lies in the fact that in a beam arbitrarily fixed at the ends (for example, both ends are hinged or rigidly fixed, or one end is rigidly fixed, and the other is hinged), the linear mass of which must be determined, excites the resonant frequency of oscillations f and it is loaded, the beam is loaded with a uniformly distributed load and the intensity is measured by the maximum deflection of the beam w0 from this load, after which the linear mass of the beam is determined from a known relationship:

m 0,0324.q/f l-w0,m 0.0324.q / f l-w0,

где 0,0324 - коэффициент, не завис щий от формы выполнени  закреплени  балки. Способ реализуетс  в устройстве, содержащем, например, закрепленный в точке максимального прогиба пьезоэлектрический датчик перемещений, который через усилитель колебаний св зан с регистратором, и ударное устройство электромагнитного действи  дл  возбуждени  колебаний.where 0.0324 is a coefficient not depending on the form of fixing the beam. The method is implemented in a device comprising, for example, a piezoelectric displacement transducer fixed at the point of maximum deflection, which is connected via a vibration amplifier with a recorder, and an electromagnetic impact device for driving oscillations.

(Л(L

СWITH

II

Claims (1)

Формула изобретени Invention Formula Способ измерени  массы прот женного издели , заключающийс  в том, что в исследуемом изделии возбуждают поперечные колебани  и измер ют резонансную частоту колебаний, по которой определ ют массу издели , отличающийс  тем, что, с целью расширени  области применени  за счет измерени  массы изделий неизвестной посто нной жесткости, нагружают изделие равномерно распределенной нагрузкой , затем измер ют максимальный прогиб издели  и вычисл ют погонную массу издели  из соотношени The method of measuring the mass of an extended product, which consists in that the transverse oscillations are excited in the product under investigation and the resonance frequency of oscillations is measured, which determines the mass of the product, characterized in that, in order to expand the field of use by measuring the mass of products with an unknown constant stiffness, load the product evenly distributed load, then measure the maximum deflection of the product and calculate the linear mass of the product from the ratio m 0,0324 |3--,m 0,0324 | 3--, m - погонна  масса исследуемого изделилm - the mass of the investigated piece q - интенсивность равномерно распределенной нагрузки,q is the intensity of a uniformly distributed load, f - резонансна  частота колебаний издели ,f is the resonant frequency of oscillation of the product, w0 - максимальный прогиб издели .w0 - the maximum deflection of the product.
SU874281461A 1987-06-22 1987-06-22 Method of measuring the mass of continuous articles SU1536213A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU874281461A SU1536213A1 (en) 1987-06-22 1987-06-22 Method of measuring the mass of continuous articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU874281461A SU1536213A1 (en) 1987-06-22 1987-06-22 Method of measuring the mass of continuous articles

Publications (1)

Publication Number Publication Date
SU1536213A1 true SU1536213A1 (en) 1990-01-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU874281461A SU1536213A1 (en) 1987-06-22 1987-06-22 Method of measuring the mass of continuous articles

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Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Киселев В.А. Строительна механика. Общий курс. М.: Стройиздат, 1986, с.520. *

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