英汉例句

• solution of nonstationary random vibration of linear vehicle systems with variable driving speed by mode method;

  对车辆系统变速行驶所引起的非平稳随机振动进行了研究。

• a theoretical solution on nonstationary random response of sdof system to ground motion caused by explosion seismic is proposed by means of the theory of evolutionary spectra.

  在给定结构固有频率和阻尼系数条件下，得到了单自由度系统的爆炸地震位移响应功率演变谱和均方根位移理论解。

• the nonstationary random response of elastic circular arch under horizontal seismic excitation was studied by the method combining the pseudo-excitation algorithm with galerkin algorithm.

  应用虚拟激励法与伽辽金法相结合，分析弹性圆拱在非平稳水平随机地震作用下的随机响应问题。

• the second nonstationary random process mathematical model, which is based on data, is the a modification to the first nonstationary random process mathematical model.

  基于数据的第二种非平稳随机过程数学模型是第一种非平稳随机过程数学模型的继续。

• based on the pseudo excitation algorithm for nonstationary random responses, a number of high-precision quadratures are developed corresponding to various evolutionary random excitations.

  演变随机激励的调制函数取各种不同形式时，相应的虚拟激励对应精细时程积分的不同形式。

• nonstationary random vibration of vehicle systems with uniform variable speed is discussed in this paper.

  提出了考虑轨道高低不平顺时进行车桥耦合系统垂向非平稳随机振动分析的新方法。

• actually, both kinds of the nonstationary random processes are evolved from stationary ones, though through utterly different ways.

  通过引入「演变频率响应」的概念，使这种表述具有十分简洁的形式。

• finally, the method of solving instantaneous acceleration power spectrum of nonstationary random response of arbitrarily point on vehicle is presented.

  最后给出如何求解车辆上任一固定点非平稳随机响应的瞬时加速度功率谱。

• the instantaneous power spectrum of nonstationary random vibration signals is discussed in this paper.

  本文研究了非平稳随机振动信号的瞬时功率谱。

• based on the features of existing structure, the nonstationary random process model of resistance for existing structure is proposed.

  根据服役结构的特点，提出了服役结构抗力的非平稳随机过程模型。

• the time-frequency process of blasting vibration is a nonstationary random one with short duration, and analysis is made on the process by means of wavelet transform technique.

  应用小波变换方法对短时非平稳爆破振动过程提出了时频特征分析。

• on the basis of works (1) of single-degree-of freedom nonlinear systems, we discuss the response of nonlinear systems with multi-degree-of freedom to nonstationary random wind-excitation.

  在单自由度非线性系统的工作的基础上，讨论了多自由度非线性系统对非平稳随机风激励的响应。

• thus, the problem of estimating of the reliability of structures under a big class of nonstationary random loadings with slowly varying statistics can be simplified significantly.

  这样，大大地简化了在一大类统计特性缓慢变化的非平稳随机载荷作用下的结构的寿命与可靠性估计问题。