力矩原理

Week 4 Work and energy principle, conservation law of mechanical energy, moment of force, moment of inertia of rigid body, rotating law of rigid body with fixed axis.

第4周 功能原理、机械能守恒定律；力矩、刚体的转动惯量、刚体定轴转动定律。

Fin stabilizer is a kind of active stabilizer,which is designed on the principle of torque counteraction.

减摇鳍是一种主动式减摇装置，它采用力矩对抗原理设计。

It provided a correct and reasonable mathematical model for the analysis of the ultimate bearing capacity and crankle stability of the thin-walled structure.

论文在比较了两种运动描述方法（完全拉格朗日法和更新拉格朗日法）异同点并分析了非线性几何关系及大变形下的弹性物理关系的基础上，基于增量虚功原理推导了几何非线性空间梁元单元切线刚度矩阵，采取分模块形式，分别表示了轴力、弯矩、双力矩对几何矩阵的贡献；通过球面显式荷载增量迭代式弧长法求解方法编制程序，很好地实现了几何非线性增量荷载的自动步长选择及全过程跟踪，为薄壁杆系结构的极限承载力分析和弯扭失稳分析，提供了较为精确合理的分析力学模型。

3The dynamic statics analysis of the framework is dealt with for solving the forces of apiece joint and the moments by using d'Alembert principle.

3运用达朗贝尔原理对机构进行动态静力学分析，求解机构各铰支点的铰支力以及驱动力矩等参数。

The software and hardware realizing scheme of high performance, AC servo system based on the digital-analog mixed type of 16 bits high performance, single piece micro computer 80C196 is presented in this paper It expounds the theory and method of system design for industrial applications, and it also gives out the situation of system industrial applications Based on the analysis of the influential characteristics of servo system the method of improving the system precision, estimative model of loading torque and instantaneous velocity, compensative predictive control under low speed motion are dicussed in this paper.

论述了面向工业对象的系统设计原理与方法。并给出了本文系统工业应用的情况。在分析影响交流伺服系统性能的基础上，提出了改善系统精度的方法，给出了负载力矩和瞬时转速的估计模型，研究了低速运行时的补偿预测控制，提高了伺服系统低速稳定运行的范围。

Induction watt-hour meter is the principle of electromagnetic induction to voltage, current, phase into a magnetic moment, and promote aluminum rotating disk, the disk axis gear-driven drive device degrees of drum rotation, that is, the process of turning is the cumulative amount of time to process.

感应式电能表是采用电磁感应的原理把电压、电流、相位转变为磁力矩，推动铝制圆盘转动，圆盘的轴带动齿轮驱动计度器的鼓轮转动，转动的过程即是时间量累积的过程。

The measuring principle is explained,the design of the measure system and the realization of the measure arithmetic is proposed based on the dynamic measuring principle,and a feasible elimination method of friction torque is introduced.

介绍了一种快捷、简便的确定开卷机、卷取机传动系统转动惯量的动态测量方法，阐述了它的原理，提出了基于这种方法的测量系统的组成及测量算法的实现，并对摩擦阻力矩的消除提出一种可行的方法。

Under the condition of knowing trolly"s relation datas, the wire rop-load modle taking its load as the study object, using D"Alembert"s Principle and Hybrid method, solves out the mathematical expression of wire rop"s traction while settig the hiost speed; The elctronic motor-drum modle"s build up is attracted to the elctronic motor"s torque, and combines with the wire rop traction"s role on drum, only pay attation to the coupling"s flexibility and damping, which is between the elctronic motor and the reducer. The theory of transmission equations establishment is in Project Vibration.

钢丝绳—吊重模型是在小车运行机构的相关数据均已知的情况下，以吊重为研究对象，利用达朗伯原理和动静法，在假定起升速度已知后求解出钢丝绳牵引力的表达式；电动机到卷筒部分的模型则是建立在电动机输入转矩形式已知的基础上，结合钢丝绳牵引力作用在卷筒上的工作阻力矩，只考虑电动机与减速箱之间的联轴器的弹性阻尼，利用工程振动原理建立传动方程。

In this paper, compensation techniques of seismic simulation system are introduced primarily, including geometric cross coupling compensation, overturning movement compensation, off center load compensation and force balance compensation.

对振动台控制技术的台面补偿技术作了初步研究分析，其中包含几何交叉耦合补偿、倾覆力矩补偿、偏心负载补偿和力平衡补偿，并分析了它们的原理和电路实现原理框图。

It is an open problem for the equialence principle of extended rotating bodies.It is significant for equialence principle test for extended rotating bodies with a torsion balance to measure the internal friction torque of a gyroscope.

利用角动量定理对实验采用的电磁驱动机械陀螺的内部摩擦力矩进行测量，分析了这一摩擦力矩对宏观旋转物体等效原理扭秤方案检验的影响，并就此提出了几项改善措施。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。