wangzhen_82 发表于 2016-9-1 09:08

求助单频激励产生倍频响应的原因

我在激振台上进行单频激励,但是在响应中出现多个倍频,尤其是1,3,5,7,9,11,13,15这些倍频较为明显,请问除了松动还有其他原因吗?
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查看完整版本: 求助单频激励产生倍频响应的原因