力矩的平衡 meaning in Chinese
equilibrium of moments
Examples
- A discussion has been made on the problems of balance for shocking force and moment of the commonly used crank slider mechanism in machinery
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。 - In the procedure , the column is first divided into a finite number of small segments in equal length . the deflection - curvature relation of each segment is determined using the finite - difference method . the final nonlinear algebraic equations are then obtained by means of the equilibrium condition for each segment
运用这种方法时，先将长柱离散成若干等长的柱段，利用差分方法求得各柱段截面上的挠度与曲率的关系，再根据各截面上力及力矩的平衡条件，得到一组关于荷载与变形关系的非线性代数方程组，本文采用曲率增量法求解该方程组。 - In this application , the lorentz force generated by the interaction between the current in the wire and the geomagnetic field produces an electro - dynamic drag leading to a fast orbital decay . in this paper , we make an intensive study of the process of de - orbiting using electro - dynamic tether system . the concrete work includes : firstly , i have studied the basic principle of how to generate the electro - dynamic drag , modeled via accuracy geomagnetism , made a concrete analysis of the de - orbiting duration , the magnitude and direction of electro - dynamic drag under the action of the dipole and accurate geomagnetic models , set up a counterbalance between electro - dynamic torque and gravity gradient torque , emulate the de - orbiting process of spacecraft , and compared the change of six orbital factors and the de - orbiting duration under the action of the dipole and accurate geomagnetic models
本文对基于电动力缆绳的航天器离轨过程进行了深入研究,具体工作如下:首先,本文研究了电动力缆绳产生电动力拉力的基本原理,建立了精确地磁场模型;分别在偶极子模型和精确地磁场模型作用下,对电动力拉力的大小、方向、离轨时间及电动力缆绳倾角的大小进行了计算分析;建立了电动力力矩与缆绳系统重力梯度力矩的平衡关系;分析了电动力力矩为系统提供能量的原理;最后分别在偶极子地磁场模型和精确地磁场模型作用下,对受电动力缆绳作用的航天器的离轨过程进行仿真,分析了在不同精度地磁场模型下,航天器离轨过程中各轨道参数的变化情况,并比较了不同模型对离轨时间的影响。