提出了直升机模型桨叶颤振试验技术及试验方法。
An experimental technique and method for flutter research of helicopter blade model are proposed.
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建立了金属切削过程的二维颤振数学模型；
This Paper present a two-dimensional non-linear dynamic cutting model.
第四个模型可用来进行颤振试验。
A fourth model may be tested for flutter speed.
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