modal response meaning in Chinese
模态反应
Examples
- In this method , the measured response data are first decomposed into modal responses using empirical mode decomposition ( emd ) approach with intermittency criteria
使用带有间歇指标的经验模式分解( empiricalmodedecomposition - emd )方法将测量响应数据分解成各阶模态响应。 - Then , the hilbert transform is applied to each modal response to obtain the instantaneous amplitude and phase angle time histories . a linear least - square fit procedure is proposed to identify the natural frequency , damping ratios , physical mass , damping and stiffness matrices from instantaneous amplitude and phase angle for each modal response
然后对各阶模态响应进行hilbert变换，得到瞬态幅值和相位角的时间历程，再运用线性最小均方拟合来识别自然频率、阻尼比、质量、刚度和阻尼矩阵。 - The first - order perturbation method correct for forcing decoupling method based on perturbation theory is put forward to decrease error ; iii . the complex modal method is introduced into analysis of non - classical damping systems to eliminate error of forcing decoupling method , and improve the complex modal response spectrum , which can apply to design of non - classical damping systems ; iv . for exerting the energy dissipation capability of each device , a two - step optimum method , whose controlling function is extremum expectation of interbedded displacement , is put forward to optimize the number and position of device ; v . the problem of iterative method applied to analyze energy dissipation systems is indicate , and give some primary advice based on pilot study
为改善上述缺点，本文进行了以下的研究工作：在忽略耗能器附加质量的基础上，推导出适用于耗能减震结构的摄动法，减少振型分解法在迭代计算过程中的工作量，加快计算速度；针对运动方程的强行解耦所产生的误差，根据摄动法原理，对其进行一阶摄动修正；为消除强行解耦振型分解法用于非比例阻尼结构分析时产生的误差，引入状态空间对系统进行复模态分析，并改进了基于复模态理论的、适用于非比例阻尼结构设计的双反应谱方法；对于耗能器的数量和位置优化进行了一些探讨和研究。