overmarsjf 发表于 2012-11-8 10:19:04

关于振动试验的问题

各位大虾们，小弟刚开始学习振动试验，单位会新近2台电磁振动台，请问下面的这段标准，后面几句是啥概念呢？
Arigidfixturemustbeusedtosimulatetheapplication-mountingconfiguration.Thefixtureshallhaveno
resonancemodesbelow300Hz.Thereshallbenoresonantmodeswithtransmissibilitygreaterthan10(test
monitoringresponsedividedbyshakerheadinput)inthetestrange.Additionallythereshallbenoresonant
modeswithtransmissibilitiesgreaterthan20withinoneoctaveofthetestfrequencyrange.

overmarsjf 发表于 2012-11-8 10:19:54

主要是这段话时啥概念Thereshallbenoresonantmodeswithtransmissibilitygreaterthan10(test
monitoringresponsedividedbyshakerheadinput)inthetestrange.Additionallythereshallbenoresonant
modeswithtransmissibilitiesgreaterthan20withinoneoctaveofthetestfrequencyrange.

overmarsjf 发表于 2012-11-8 10:34:01

还有就是这段话是定义试验的还是定义夹具的？

overmarsjf 发表于 2012-11-8 10:34:16

求高人大虾

gavin.fung 发表于 2012-11-8 16:03:06

讲得测试夹具的要求。主要是防止产生谐振。

overmarsjf 发表于 2012-11-8 20:29:26

谢谢楼上的兄弟

overmarsjf 发表于 2012-11-9 18:29:35

都是关于夹具的问题
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