BR9712112A - Método para especificar testes de vibração randómicos para validação da durabilidade do produto. - Google Patents

Método para especificar testes de vibração randómicos para validação da durabilidade do produto.

Info

Publication number
BR9712112A
BR9712112A BR9712112-6A BR9712112A BR9712112A BR 9712112 A BR9712112 A BR 9712112A BR 9712112 A BR9712112 A BR 9712112A BR 9712112 A BR9712112 A BR 9712112A
Authority
BR
Brazil
Prior art keywords
test
psd
product
accelerated
function
Prior art date
Application number
BR9712112-6A
Other languages
English (en)
Inventor
Jun Ming Hu
Original Assignee
Ford Motor Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ford Motor Co filed Critical Ford Motor Co
Publication of BR9712112A publication Critical patent/BR9712112A/pt

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M7/00—Vibration-testing of structures; Shock-testing of structures
    • G01M7/02—Vibration-testing by means of a shake table
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M7/00—Vibration-testing of structures; Shock-testing of structures
    • G01M7/02—Vibration-testing by means of a shake table
    • G01M7/022—Vibration control arrangements, e.g. for generating random vibrations

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

"MéTODO PARA ESPECIFICAR TESTES DE VIBRAçãO RANDÈMICOS PARA VALIDAçãO DA DURABILIDADE DO PRODUTO". Trata-se de um método para determinar o perfil de teste para o teste acelerado vibracional randómico em laboratório de um produto, incluindo as etapas de (i) selecionar a faixa de freq³ência coberta no teste acelerado em laboratório, (ii) desenvolver uma função de Densidade Especial de Força composta simplificada PSD~ j~(f), incluindo coeficientes de escalonamento, representativa da PSD para as cargas de vibração randómicas nos níveis de vibração de campo esperadas, (iii) desenvolver o formato de uma Densidade Espectral de Força do teste acelerado em laboratório da PSD~ T~(f) para produzir no produto as forças de aceleração do teste correspondendo a função PSD~ j~, (iv) calcular a curva de resposta ao esforço H(f) para o produto representativa da função de transmissibilidade a partir das forças de aceleração de entrada para as forças de esforço de vibração locais, (v) selecionar a duração do teste T e então calcular o fator de amplificação AF a partir da relação (a), (vi) recalcular o perfil PSD acelerado PSD~ T~(f) para o teste baseado na duração do teste selecionada e no fator de amplificação (b), e então (vii) testar o produto utilizando a função PSD selecionada, para validar o tempo de vida útil de performance requerido para o produto quando nenhuma falha de teste é observada através da duração do teste T.
BR9712112-6A 1996-09-30 1997-09-30 Método para especificar testes de vibração randómicos para validação da durabilidade do produto. BR9712112A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/724,718 US5767406A (en) 1996-09-30 1996-09-30 Method to specify random vibration tests for product durability validation
PCT/GB1997/002693 WO1998014765A1 (en) 1996-09-30 1997-09-30 Method to specify random vibration tests for product durability validation

Publications (1)

Publication Number Publication Date
BR9712112A true BR9712112A (pt) 1999-08-31

Family

ID=24911614

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9712112-6A BR9712112A (pt) 1996-09-30 1997-09-30 Método para especificar testes de vibração randómicos para validação da durabilidade do produto.

Country Status (10)

Country Link
US (2) US5767406A (pt)
EP (1) EP0929798B1 (pt)
JP (1) JP2001507444A (pt)
KR (1) KR20000048781A (pt)
AR (1) AR008865A1 (pt)
BR (1) BR9712112A (pt)
CA (1) CA2267459A1 (pt)
DE (1) DE69707909T2 (pt)
TW (1) TW409182B (pt)
WO (1) WO1998014765A1 (pt)

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CN105424166B (zh) * 2015-10-28 2018-12-21 深圳市亚泰光电技术有限公司 一种振动质量检测系统及方法
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CN106932206B (zh) * 2017-02-20 2019-05-03 上汽通用汽车有限公司 路谱处理方法及装置
CN107727345B (zh) * 2017-09-19 2019-08-16 合肥通用机械研究院有限公司 一种用于加速试验的非平稳振动信号生成方法
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CN108363856B (zh) * 2018-02-05 2021-10-01 燕山大学 一种刀杆疲劳变形加速试验方法
JP7369535B2 (ja) * 2019-03-20 2023-10-26 三菱重工業株式会社 衝撃試験方法
US11474494B2 (en) * 2019-03-22 2022-10-18 Hamilton Sundstrand Corporation Method for simulating an N1 and N2 speed vibration composite input for development and/or model based testing of engine control hardware and embedded software
CN110263443B (zh) * 2019-06-21 2022-12-20 中国航发沈阳发动机研究所 一种航空发动机成附件随机振动耐久试验时间计算方法
CN110988531B (zh) * 2019-11-28 2022-06-28 上海新时达电气股份有限公司 变频器的高加速应力筛选方法
CN111523180B (zh) * 2020-05-14 2023-04-07 中国兵器工业第五九研究所 一种车载设备加速试验谱的构建方法
CN112461473B (zh) * 2020-12-07 2023-08-01 浙江省计量科学研究院 一种ct探测器核心部件的高加速寿命试验方法
CN112710446B (zh) * 2020-12-21 2022-06-07 北京和中普方新能源科技有限公司 电动车电池系统振动试验的判断方法、系统及存储介质
CN113204255B (zh) * 2021-06-21 2021-12-21 北京博科测试系统股份有限公司 一种多自由度振动台功率谱加载控制方法
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Also Published As

Publication number Publication date
EP0929798A1 (en) 1999-07-21
DE69707909D1 (de) 2001-12-06
EP0929798B1 (en) 2001-10-31
WO1998014765A1 (en) 1998-04-09
AR008865A1 (es) 2000-02-23
US5767406A (en) 1998-06-16
TW409182B (en) 2000-10-21
JP2001507444A (ja) 2001-06-05
DE69707909T2 (de) 2002-04-04
CA2267459A1 (en) 1998-04-09
US5965816A (en) 1999-10-12
KR20000048781A (ko) 2000-07-25

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