关于GB/T 21563-2008冲击试验的剪裁  

Analysis of test standards tailoring of shock test in GB/T 21563-2008

作　　者：杨博[1] 陈立伟[1] 孙立明[1] 吴红[1] 

机构地区：[1]北京强度环境研究所,北京100076

出　　处：《强度与环境》2015年第3期28-33,共6页Structure & Environment Engineering

摘　　要：确定动力学环境模拟的试验量级是一件复杂的工作,在引用指导性的标准文件时应该结合自身数据进行剪裁。基于Miner损伤准则,计算GB/T 21563-2008中模拟长寿命试验与冲击试验对产品造成的潜在疲劳损伤,通过对比分析得出模拟长寿命试验对产品造成的潜在疲劳损伤大于冲击试验对产品造成的潜在疲劳损伤。若产品经受住规定频率范围内的某一方向上的模拟长寿命试验,可以对相应方向的冲击试验进行剪裁。The determination of the magnitude of dynamic environmental test is a complex task. When using the guiding standard documents, the test environment should be tailored combined with their database. Based on Miner damage rule the potential fatigue damage of simulation of long-life test and shock test in GB/T 21563-2008 is calculated. Through comparative analysis, the damage of simulation of long-life test is greater than impact test. If the product has withstood the simulation of long-life test within the specified frequency range, the corresponding direction of the shock test can be tailored.

关 键 词：GB/T21563-2008 试验剪裁 冲击响应谱 3σ响应谱 累计损伤 

分 类 号：U260.14[机械工程—车辆工程]