查询词典 dynamic test

This thesis contains three parts: The first part focused on the simulation of the dynamic buckling for rod impacted by dynamic force and rigid body in axial direction, which is hinge joint and uniform cross section, basing on the ANSYS/LS-DYNA and PAMCRASH.

本文的研究工作主要有三部分组成：第一部分基于有限元程序ANSYS/LS-DYNA、PAMCRASH分别对两端铰接、等截面直杆在轴向动力载荷作用下的屈曲和刚性块轴向冲击作用下直杆的动力屈曲过程进行了数值模拟和分析。

The dynamic stability is better than that of HMA under the same ratio of asphalt With a lower mix temperature, the mechanical property and pavement property of WMA can meet the requirements of the specifications, and the dynamic stability gets higher.

在降低拌和温度的情况下，温拌沥青混合料的力学性能和路用性能可以满足规范要求，并且动稳定度得到提高，温拌沥青混合料具有很好的工程应用前景。

Then again, with the aid of a multi period game model, the passage give the social welfare effects in firm's horizontal merger under open economy a dynamic analysis. In this way, no only the results are more systemic and more general, but also it can show the difference of the social welfare effects in short run and in long run of merger. In addition, it shows the potential conflict between governments and firms in dynamic condition.

其次，鉴于技术发展、产业变迁所产生的动态影响，本文运用多阶段博弈模型对企业兼并的社会福利影响给予了动态的分析，这样不仅使研究成果更加系统和客观，也反映了企业兼并对企业利润和社会福利的影响在短期与长期考察存在的差异，并揭示了动态条件下可能存在于政府和企业之间的利益冲突。

The relations of dynamic stress and dynamic strain of reinforced-soil is similar to that of pure soil, they are agree well with the hyperbola model.

通过上述试验对加筋土的动力特性有了一定的了解，并且得到了如下一些结论： 1。

The theory of high-strain dynamic testing of pile bearing capacity. The basic calculation expression of pile high-strain dynamic testing is rederived in a simple way, especially the semi-empirical analytical expression of wave equation . Besides, theoretically it has been proved that it's not necessary to have identic section hypotaxis along pile, and the application condition and reasonable operation have been pointed out. the CASE comprehensive method is suggested to replace the traditional CASE method. author has made a lot of improvement for the mathematical model of the matching analysis measured curves in the business software CCWAPC and scientific research software JXWAPC of which the author is in charge.

关于高应变动力试桩法的理论研究以简明方式重新推导了高应变动力试桩法基本计算表达式，尤其波动方程半经验解析表达式，同时从理论上证明了CASE法并不需要桩身等截面假设，亦指出了该方法的适用条件及合理使用办法，并建议利用CASE综合分析法取代传统的CASE分析法；作者在其负责编制的商业软件CCWAPC及科研软件JXWAPC中，对波动方程拟合分析法数理模型进行了一系列重大改进，考虑了灌注桩桩周土体的变形特性和动荷截作用下的非线性效应、大直径桩的横向惯性效应。

In allusion to the characteristic of dynamic Ad Hoc network,this paper puts forward a new estimate index of network invulnerability and sets up a incidence matrix to depict the connectivity of the network nodes in a dynamic network model .

针对动态Ad Hoc网络的特性，提出了抗毁率这一新的网络抗毁性评价指标，在动态网络模型中建立了刻画网络节点连通性状的关联矩阵。

Firstly, based on the analysis of hydraulic mounts structure, operating principle, ideal dynamic characteristics and the testing results of dynamic characteristics, its vibration isolation performance was incipiently evaluated.

首先，通过对液压悬置的结构、工作原理和理想动特性的分析，并结合全顺客车所使用液压悬置动特性的试验实测结果，对该种液压悬置的隔振性能作出了初步评价。

A set of finite element programs has been developed for the calculation for thermal dynamic lubrication of inclinable bush radial bearing s with considerations accorded the characteristics of inclinable bush bearings using the thermal flow dynamic lubrication theory.

根据可倾瓦轴承的特点和热流动力润滑理论，开发了一套可倾瓦径向轴承热动力润滑计算的有限元程序。

Based upon the assumptions of small deformation, the unretractility of the beam's axis and the inextensibility of the plate's neutral surface ("the method of geometrical deformation constraint"), we can obtain the geometrically nonlinearized formulae of the beams and plates. Accordingly, the "dynamic stiffening terms"would be naturally cooperated into the dynamic equations of flexible multibody system if combined with the linerization of kinematic parameters at the proper stage.

利用杆类柔性体轴线的不可伸缩性和板类柔性体在中面内的不可伸展性，并结合小变形的假设，从而可获得杆类和板类的几何非线性变形表达式；以此为基础，在适当阶段对运动学参量进行线性化处理，可确保"动力刚化项"在建立柔性多体系统动力学方程过程中自然地形成。

For the condensed dynamic stiffness matrix in finite models which have finite number of freedom and any dynamic stifmess matrix of infinite system, the element of them is a transcendental function of eigenfrequency. And therefore transcendental eigenvalue problem is needed to be solved in order to get the natural frequency and modes of vibration.

对于有限自由度系统的缩聚动刚度矩阵和无限自由度系统的任何动刚度矩阵，其元素是频率的超越函数，因此求解结构固有频率及其振型归结为求解超越特征值问题。

Researches reveal that students who suffer from corporal punishment tend to resort to violence in their future life.

研究表明遭受过肉体惩罚的孩子倾向于在他们今后的人生中使用暴力。

Total sugar of sarcocarp and chlorophyll of pericarp increased firstly, and then decreased afterward along with altitude; Titratable acidity, ascorbicacid and anthocyanin of pericarp were increased along with altitude; The content of protein increased firstly and decreased afterward along with altitude; Carotenoid of pericarp were decreased along with altitude.

果肉总糖和果皮叶绿素含量随海拔高度升高先升高后降低；可滴定酸、维生素C和果皮花青苷含量均随海拔升高而升高；蛋白质在1720m处最大，1420m处最小；果皮类胡萝卜素随海拔升高而降低。