A new dynamic characteristic modification method is proposed for structural optimum design and modification.
提出一种动态特性调整的新方法以满足结构优化设计调整要求。
The structural dynamic characteristic sensitivity is widely applied to modification of the dynamic structure and the diagnose trouble.
结构动特性灵敏度在动力学结构修改和故障诊断中被广泛地应用。
Thus, it's necessary to improve the design of rig substructure or better the dynamic characteristic of substructure that is being used by dynamic modification.
所以改进钻机底座的设计或对现役钻机底座进行动力修改以改善其动态特性，很有必要。
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