应用模态叠加法研究了用粘弹性阻尼控制加筋板的稳态简谐响应。
The viscoelastic damping control of steady-state harmonic response of stiffened plate is studied by using modal superposition method.
对于转子系统非线性动力学问题，直接积分法比模态叠加法更为有效。
With regard to the nonlinear kinetics problems of a rotor system the direct integration method is more effective than the modality superposition method.
分别采用直接法和模态叠加法，计算声场-结构耦合系统的声压响应水平及其敏度。
The modal frequency response and its sensitivity analysis for the coupled system using the direct method and the eigenmodes.
最后进行了动态分析，对冲击载荷进行了研究，采用模态叠加法对典型工艺的动态响应进行计算。
Finally, in dynamic research, the impulsive loads of the frame are studied and dynamic response of the typical process is calculated and analyzed with modal superposition method.
将增量模态叠加法和伪并行改进遗传算法相结合，解决了冲击隔离系统限位器参数的优化问题，这对于冲击隔离系统的优化设计具有重要的实际意义。
IMSP and PPIGA have been combined to solve the optimization problem of the displacement restrictor parameters, which is significant for the optimization design of the shock isolation system.
目前对此虽然已经有较多研究成果发表，但多数以简支桥梁为研究对象，采用效率不高的数值方法或者解析方法求解随机响应，分析过程中普遍采用模态叠加法。
Some research papers have been published. However, most of these papers used relatively simple bridge models and adopted analytical solution or inefficient numerical method to get stochastic response.
从产品已知条件出发，利用有限元、模态综合法和振型叠加法等理论，探索出求产品脆值的新方法。
Based on Known conditions of the product, by using the FE? Modal synthesis and vibration modal congruence theories, this article explores a new product frailty solution.
从产品已知条件出发，利用有限元、模态综合法和振型叠加法等理论，探索出求产品脆值的新方法。
Based on Known conditions of the product, by using the FE? Modal synthesis and vibration modal congruence theories, this article explores a new product frailty solution.
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