By using of effective mobility power flow method, vibration level and radiated power level of a element cylindrical shell are studied.
利用有效导纳功率流法研究了基本圆柱壳体的表面振级和声辐射功率级。
The general vibration power flow vector measurement method is put forward, and then the test results are analyzed.
研究了梁结构中的振动功率流，给出了梁中振动功率流的一般测量方法，并对实验研究结果进行了分析。
The lower-middle frequency range power flow calculation method of the double-layer vibration isolation system on flexible base is established.
多层隔振系统是隔振降噪一项重要的技术，而功率流方法是评价隔振系统隔振效果的有效方法。
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