英德
有道
百度
谷歌
图片
维基
百科
滑动力 [huá dòng lì]
sliding force
- 文摘:介绍一种新型气液元件行程控制单向阀的结构、原理和特点，以及在组合机床动力滑台液压系统中的应用。
Abstract: This paper briefly introduces structure,principle,application and feature of a new element named travel control single direction valve. - 摘要对机械中常用的曲柄滑块机构的振动力和振动力矩的平衡问题进行了探讨。
A discussion has been made on the problems of balance for shocking force and moment of the commonly used crank slider mechanism in machinery. - 考虑到高速滑坡过程中的速度和变形的不均匀性、变形能的改变以及能量的损耗，提出一种可以模拟滑坡从失稳开始滑动到终止全过程的数值模型，可用来预测最大滑速和最大滑距及滑体形状的变化.通过对天水锻压机床厂滑坡的滑速和滑距的验证及坡体形状的计算机模拟，证明了该方法的有效性.结果表明：滑坡形成高速的根本原因在于剧滑时综合摩阻力的下降，滑体后部在滑动过程中的较大重心落差是滑体高速运动的动力来源；在滑动的中间阶段，滑体经常呈现出整体运动的特征，而中前部土体在滑坡后则易处于松弛甚至拉伸的状态.
Based on the analysis of the inhomogeneity of speed and deformation, conversion of strain energy and dissipation of energy during high-speed and long-distance landslide,a new method for simulating its whole advancing procedure from the onset to the end is presented in this paper.Moreover,we can predict the maximum sliding speed,maximum sliding distance and surface variations of sliding body by applying the method.The computer modeling of the landslide in Tianshui Forging Machine Factory illustrates its efficiency.The calculated results prove that:(1) the fundamental cause of high-speed is the decline of resultant friction force during acutely sliding,and the big fall of barycenter of tail sliding mass is its dynamic source; (2) the sliding mass presents usually the character of the whole motion at midst stage,and its middle and front parts show easily themselves in a laxity,even extensile,state at the end of sliding.
 |
 |
 |
 |
 |
 |
 |
中国词汇量第二的英语词典
更多精彩，登录后发现......
