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13问答网 > 结构的固有频率和刚度有什么关系

结构的固有频率和刚度有什么关系

2025-03-15 23:08:12

推荐回答（1个）

回答1：

静载荷下抵抗变形的能力称为静刚度。动载荷下抵抗变形的能力称为动刚度，即引起单位振幅所需的动态力。如果干扰力变化很慢（即干扰力的频率远小于结构的固有频率），动刚度与静刚度基本相同。干扰力变化极快（即干扰力的频率远大于结构的固有频

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