JoVE Logo

登录

Chapter 15

Planar Kinematics of a Rigid Body

平面刚体运动
平面刚体运动
When a rigid body is in a planar motion, all its particles move along paths that remain at a constant distance from a specified plane. The planar body ...
绕固定轴旋转运动
绕固定轴旋转运动
When a rigid body rotates about a fixed axis, any given point within that body moves in a circular path around a specified line or point. This type of ...
旋转的运动方程
旋转的运动方程
For the rigid body rotating with constant angular acceleration, similar to linear kinematics, kinematics equations for rotational motion can be ...
绝对运动分析 - 一般平面运动
绝对运动分析 - 一般平面运动
Imagine a propelling drone hovering in the air. The motion of a drone can be analyzed using the principle of general planar motion. As the propellers of ...
相对运动分析 - 速度
相对运动分析 - 速度
A stroke engine has a slider-crank mechanism that converts rotational motion from the crank into linear motion of the slider or vice versa. As the crank ...
瞬时零速度中心
瞬时零速度中心
Consider a wheel in general planar motion. The absolute velocity of point B is expressed as the vector sum of the absolute velocity of point A and the ...
相对运动分析 - 加速度
相对运动分析 - 加速度
In a slider-crank mechanism, the motion is not uniform due to the varying angle between the crank and the connecting rod. The motion of segment AB can be ...
使用旋转轴进行相对运动分析
使用旋转轴进行相对运动分析
Consider a member AB in linear motion. Simultaneously point B  rotates around point A. The position vectors of A and B are determined using a ...
使用旋转轴的相对运动分析 - 加速度
使用旋转轴的相对运动分析 - 加速度
Consider member AB undergoing linear motion and simultaneous rotation about point A. The velocity of point B is expressed as the sum of the velocity of ...
使用旋转轴的相对运动分析 - 问题解决
使用旋转轴的相对运动分析 - 问题解决
The crane's telescopic boom rotates with an angular velocity of 0.04 rad/s and angular acceleration of 0.02 rad/s2. Simultaneously the boom extends ...
Equation of Motion:绕固定轴旋转
Equation of Motion:绕固定轴旋转
Imagine a flywheel having a non-uniform mass, rotating around a fixed axis. As the flywheel spins, its center of mass moves in a circular path. The ...
运动方程:一般平面运动
运动方程:一般平面运动
The motion of a rigid body in a general plane occurs due to externally applied forces and couple moments acting upon it. Newton's second law gives the ...
运动方程:一般平面运动 - 问题解决
运动方程:一般平面运动 - 问题解决
Consider a lawn roller of mass 100 kg, a radius of 0.2 meters, and a radius of gyration of 0.15 meters. If a force of 200 N is applied with an angle of 60 ...
JoVE Logo

政策

使用条款

隐私

科研

教育

关于 JoVE

版权所属 © 2025 MyJoVE 公司版权所有,本公司不涉及任何医疗业务和医疗服务。