固定式导管架平台在海冰作用下的结构瞬态响应分析与动力响应优化方法。
The process of layout optimization for platform structure includes two steps: firstly, the ground structure method is used to find the topology optimum.
瞬态响应分析是有限元动力分析的重要内容之一，而串行计算机上运行的有限元软件在解题规模和速度上都受到很大限制。
Transient response analysis is an important part of finite elements dynamic analysis. Problem scales and velocities of serial softwares are limited on serial computers.
文中阐述了动力学方程的建立和求解、系统输入特性和瞬态角频、振幅响应分析等问题。
The creation and solution of dynamic equations and problems concerning input characteristics, transient angular frequency and analysis of amplitude response are described.
提取车身骨架前20阶固有频率，并在模态分析的基础上进行瞬态响应和随机响应分析。
The former 20-order intrinsic frequency was extracted, and the transient analysis and stochastic vibration analysis basis on the modal were taken.
为提高分析月球着陆器软着陆有效载荷着陆冲击响应的准确性，提出一种基于瞬态动力学的着陆器有效载荷软着陆冲击响应分析方法。
To improve the analysis accuracy of soft landing impact response for lunar lander, a method based on nonlinear transient dynamic analysis was presented.
为提高分析月球着陆器软着陆有效载荷着陆冲击响应的准确性，提出一种基于瞬态动力学的着陆器有效载荷软着陆冲击响应分析方法。
To improve the analysis accuracy of soft landing impact response for lunar lander, a method based on nonlinear transient dynamic analysis was presented.
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