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根据结构动响应对设计参数变化的灵敏度，确定结构修改的设计参数，由超出规范要求的动响应部分，求得设计参数的修改量，使得修改后结构的动响应满足规范要求。算例表明，本文提出的修改方法可以满足工程精度的要求。
According to the sensitivity of the structure dynamic response to the change of design parameters, the design parameters of the structural modification are determined. From the dynamic response part beyond the specification requirements, the modification amount of the design parameter is obtained, so that the dynamic response of the modified structure meets the specification requirements. Examples show that the proposed method can meet the requirements of engineering accuracy.