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[线性振动] 请问当激励力的频率接近或等于某阶模态的时候的振动怎么求? |
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发表于 2011-12-17 16:34
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发表于 2011-12-18 12:36
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发表于 2011-12-18 15:16
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发表于 2011-12-18 19:23
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发表于 2011-12-18 22:20
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发表于 2011-12-21 12:39
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