The motion of variable mass system under variable force is studied using air track.
在气垫导轨上研究了变质量物体在变力作用下的运动规律。
Based on variable mass system mechanics theory, the robotic system is regarded as a variable mass object.
基于变质量系统力学理论，将这一类爬壁机器人系统看作变质量物体。
Then, the variable mass system dynamic model with nonholonomic constraints are developed for wheeled WCRs.
进一步针对轮式爬壁机器人，建立了非完整约束条件下的变质量系统分析动力学模型。
The law of the variable mass flow in the horizontal wellbore is useful for the horizontal well output prediction, and optimal design and dynamic analysis on oil well production system.
水平井井筒变质量流的流动规律是进行水平井产能预测、油井生产系统优化设计及动态分析的基础。
The effect of stiffness constant, viscosity damper coefficient and variable mass on the damped frequency and the relative damping ratio of the system were studied.
研究了系统刚度、粘性阻尼系数尤其是变质量等参数对系统固有频率和阻尼比的影响。
The kinetic energy theorem of mass variable system is derived from the kinetic equation of mass variable body.
从变质量物体的动力学方程出发，推导出变质量系统的动能定理。
The kinetic energy theorem of mass variable system is derived from the kinetic equation of mass variable body. The practical value of it is pointed out using an example.
从变质量物体的动力学方程出发，推导出变质量系统的动能定理。指明其实用价值，并举例加以说明。
The operation process of the closed variable mass energy transformation and storage (VMETS) system composes of two processes namely the charge process and the discharge process.
变质量能量转换及储存系统运行过程由充能和释能两个过程组成。
Experimental simulation system is employed to investigate the variable mass flow in perforation completed horizontal wellbore.
设计并建立了水平井筒变质量流动模拟实验装置。
The factors that influence the whole efficiency of ventilating system adopting adjustment to variable air mass flow and friction were investigated.
对采用变流量、变阻力调节式通风系统整体效率的影响因素进行了探讨。
Some of the equations can be used to investigate the dynamics of relative motion of non-holonomic system with variable mass.
其中某些方程可用于研究变质量非完整系的相对运动动力学。
Some of the equations can be used to investigate the dynamics of relative motion of non-holonomic system with variable mass.
其中某些方程可用于研究变质量非完整系的相对运动动力学。
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