通过对叶片表面非定常气动力及其所做非定常气动功的计算分析，采用能量法对叶片颤振与否进行预估判断。
Through the computation and analysis of unsteady aerodynamic forces loading on the cascades and aerodynamic work, the probability of blade flutter is predicted through the energy method.
并以此为基础研究在层流射流条件下 ，金属熔体受一定激振频率后产生的表面波波长和激振频率的关系。
The dependence of jet speed upon pressure and that of wavelength of surface wave upon vibration condition was studied through rapid solidification.
并以此为基础研究在层流射流条件下 ，金属熔体受一定激振频率后产生的表面波波长和激振频率的关系。
The dependence of jet speed upon pressure and that of wavelength of surface wave upon vibration condition was studied through rapid solidification.
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