The acceleration is a critical factor in centrifuge modelling because it links kinematics to dynamics through Newton second law. 按照牛顿第二(NS)定律,在离心模拟中的加速度是连接运动学与动力学的重要因素。
Then, according to its flight principle, establish mathematic model of the system using Newton second law and Eulerian equation. 之后,结合四旋翼直升机的飞行原理,根据牛顿第二(NS)定律和欧拉方程建立了系统数学模型。
Applying Newton second law and Hooks law and little yuans analytic method, the problem of definite solution are written out, beginning with the wave equation of spring which owns mass. 从有质量弹簧的波动方程出发,运用牛顿第二(NS)定律和胡克定律及微元分析法,给出定解问题;
Results from this study indicate that direct verification of the Newton second law could be achieved satisfactorily within the permissible range of error. 结果表明,在实验误差允许的范围内牛顿第二(NS)定律均能得到较好地直接验证。
Considering the influence of joint with clearance and using the kinematics model of Newton second condition, an unified dynamics equation of rigid multibody with clearance to the parallel mechanism of the virtual axis hybrid polishing machine tool was built. 本文考虑铰接间隙的影响,运用牛顿二状态运动模型,对虚拟轴混联研抛机床并联机构建立了含间隙多刚体动力学统一方程。