The conservation laws of relativistic variable mass systems were studied.
研究相对论性变质量系统的守恒律。
In this paper, variable mass controllable mechanical systems are investigated.
本文研究一类变质量可控力学系统。
An exact solution is presented for the problem of a harmonic oscillator with variable mass.
本文给出了变质量谐振子的精确解。
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。
Vibration of a flexibly supported rotor with variable mass of a textile machine are studied in this paper.
研究了纺织机械变质量转子系统的振动问题。
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。
Using the theorems, the new equations of higher order non-holonomic mechanical systems with variable mass are obtained.
应用这些定理得到变质量高阶非完整系统的若干新型运动微分方程。
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。
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 conservation law of mechanical energy in variable mass mechanical systems with ideal bilateral holonomic constraints is studied.
研究具有双面理想完整约束的变质量力学系统的机械能守恒律。
A theorem on kinetic energy for variable mass-point and formula of work of recoil internal forces are given and the reason of soft-rope query is discussed.
给出变质量质点的动能定理和一对反推内力作功的表达式，并由此给出软绳问题的正确解释。
The influence of the variation of solar mass on the orbital elements of Asteroids is studied by using the method of Celestial Mechanics with variable mass.
利用变质量天体力学方法研究了太阳质量变化对小行星轨道根数的影响。
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。
This paper studies a cone with leaking as a pendulum and the period of its sand leaking movement and gives out the period changing rule of the variable mass pendulum.
本文以一个载满沙子的圆锥表漏斗作为单摆，研究沙子漏出过程的运动周期，从而给出此时变质量单摆的周期变化规律。
The secular influence of solar mass-loss on the orbital elements of meteor steams is examined by using the method of celestial mechanics of variable mass in this paper.
将作者在变质量天体力学所得理论结果应用于太阳质量损失对流星群轨道根数变化的长期效应上。
Some important factors are considered, which include variable mass of recoiling parts and coupling between multi body dynamic equations and interior ballistic equations.
重点考虑后坐部分变质量、多体动力学方程与内弹道方程的耦合等因素。
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。
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 research on variable mass flowing law in horizontal wellbore is the basis of the productivity prediction, horizontal length selection and completion design optimization of horizontal well.
水平井筒变质量流动规律的研究是水平井产能预测、水平井水平段长度优选以及水平井完井设计优化等的基础。
The research result is published in the paper "Research of Sand Carrying Capacity of Heavy Oil Considering Variable Mass Flow in Horizontal Wellbore" in Acta Petrolei Sinica.
本部分基于研究成果发表于石油学报“考虑变质量流水平井筒稠油携砂能力研究”一文中。
The research result is published in the paper "Research of Sand Carrying Capacity of Heavy Oil Considering Variable Mass Flow in Horizontal Wellbore" in Acta Petrolei Sinica.
本部分基于研究成果发表于石油学报“考虑变质量流水平井筒稠油携砂能力研究”一文中。
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