查询词典 equation of motion

To more briefly calculate the accurate solution of the hangingpoint motion parameters of the beampumping unit,the walking beam's swing equation according to the geometry relationship and movement characteristic of the four pitmen mechanism in the beampumping unit is found.

根据游梁式抽油机四连杆机构的几何关系和运动特点，建立了游梁的摆动方程，并由该方程得出了游梁摆角变化规律以及悬点运动的位移、速度和加速度的计算公式，从而给出了求游梁式抽油机悬点运动参数精确解的一种计算方法。

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。

The development of drill string mechanics is discussed from the perspectives of the introduction of the topic, the research objective, the methods employed for the research, the motion behavior of the drill string, the fundamental equation for of drill string dynamics, the tension and torque of the drill string, the elastic stability of the drill string, the stress analysis of the bottom hole assembly, the drill string vibration and swirling.

从钻柱力学问题的提出、研究目标、研究方法、钻柱的运动状态、钻柱动力学基本方程、钻柱的拉力扭矩、钻柱的弹性稳定性、底部钻具组合受力、钻柱振动与涡动等方面分析了钻柱力学的发展状况。

The thought of suppressing the vibration of structure with multi-part composite structure is put forward for the first time, the motion and control equation is derived, and the effect of vibration-reduction and its influential parameters are studied.

提出了利用多单体组合来抑制结构振动响应的思路，推导了其运动和控制方程，并对其减振效果和影响参数进行了研究。

Three displacement functions w,Gand ψare introduced in this paper tosimplify motion equations of elasticity problenis in spherically isotropic media to an indepen-dent partial differential equation concerning one displacement function ψand simultaneous equations concerning two other displacement functions w and G.

本文引入三个位移函数，将球面各向同性弹性力学运动方程，简化为关于ψ的二阶偏微分方程，和关于W和G的联立方程。在静力学问题中，联立方程可进一步简化，w和G可用另一位移函数F表示，而F满足一个四阶偏微分方程。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。