查询词典 dynamic optimization

In this paper,the raft is approximated by a thin plate with regular shape at first.Then the floating raft system is divided into several subsystems,such as plate raft,elastic foundation,etc,which are respectively modeled by four-parameter net method.After that,dynamic absorber and active absorber are put into a uniform frame to obtain the model of plate raft subsystem coupling with them.At last,according to the force and velocity relationship among each subsystem\'s interfaces,the entire plate floating raft system is modeled by subsystem structural admittance synthesis method.As the main structure of floating raft system is elastic,it is inevitably to study the optimization of actuators\' mounting positions before designing control law.In this paper,two new criterions are proposed for it.

本文首先将浮筏的中间筏架用一个规则形状的薄板近似；然后再将浮筏系统分解成若干个子系统，如板式筏架子系统、弹性基础子系统等，运用四端参数网络建立了它们的动力学传递方程，传递特性由导纳矩阵描述；接着，将动力吸振器和主动吸振器的(来源：ABC90论文00网www.abclunwen.com)分析统一于一个框架内，获得了与吸振器耦合的板式筏架子系统的动力学传递特性；最后，根据各子系统在各界面上的作用力和速度的相互关系，通过子系统结构导纳综合方法获得了整个板式浮筏系统的动力学传递方程，并在此基础上获得了系统的力传递函数模型。

From the point of view of system control and optimization, the urban traffic system is a dynamic system with high complexity.

从系统控制与优化的角度来看，城市交通系统是一个具有高度复杂性的动态系统。

In light of the research situation on wheel loader and hydraulic excavator in China, a software package named KDOSCM was developed. This software package has functions of MBS kinematic analysis, dynamic analysis, optimization, motion simulation and static force analysis, and also was the first one in the field of Construction machinery in China.

最后，本篇针对国内在轮式装载机和液压挖掘机方面的研究状况，开发了一套可用于工程机械进行计算机辅助设计和分析的软件包KDOSCM，该软件包可进行工程机械的多体系统运动学分析、动力学分析、优化设计，运动仿真和静力分析，该软件包的研制在国内尚属首次，填补了国内工程机械领域的一项空白。

In the first part, one of the multibody system theories and methods— Huston's method based on Kane's equation is systematically summarized. By using this method, the existing design problems of two main machines—wheel loader and hydraulic excavator in the field of construction machinery have been solved, and also the software KDOSCM which includes multibody system kinematic and dynamic analysis, optimization , motion simulation and static force analysis is developed for construction machinery.

上篇在系统总结基于Kane方程的Huston方法的多体系统理论和方法的基础上，侧重于运用该方法解决工程机械领域中的两大主要机型—轮式装载机和液压挖掘机在设计中存在的问题，同时开发研制了可用于对工程机械进行多体系统运动学、动力学分析，优化设计、运动仿真和静力分析的软件包KDOSCM。

Using the dynamic simulation software ADAMS to analyze the six-bar mechanism of shaping machine ;and through the virtual prototype,we get the optimum point from the optimization design of the acceleration and the press angle of shaping machine for the real machine;and we can get an example to the study of virtual prototyping.

简要介绍多体系统动力学的原理及多体系统动力学计算的积分方法，利用动力学仿真软件ADAMS，对牛头刨床的六杆机构进行分析，并通过虚拟样机技术，对牛头刨床加速度和压力角进行了优化设计。为实际的机构设计提供依据，也为虚拟样机技术的学习提供了实例

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。