The paper introduces the testing system and analysis method for the dynamic axis center motion track of the bearing. The system consists of driving device of air spindle, measuring microdistance instrument by electric...The paper introduces the testing system and analysis method for the dynamic axis center motion track of the bearing. The system consists of driving device of air spindle, measuring microdistance instrument by electric capacity in noncontact, signal analysis instrument and the computer hardware and software. Many kind signal evaluation methods are adopted. The testing accuracy is high. Actual error is ≤0.02 μm. The testing system can make measurement and analysis for axis center motion of precision miniature bearing and rotating spindle of military gyroscope and effectively show dynamic performance.展开更多
The paper design a double eccentric mass driven spherical robot, the ball is also subject to eccentric force and inertia force that generate by internal drive units in movement. Due to the unique spherical shell, the ...The paper design a double eccentric mass driven spherical robot, the ball is also subject to eccentric force and inertia force that generate by internal drive units in movement. Due to the unique spherical shell, the robot in the dynamic state transition process, Friction cannot offset the robot motion state change due to internal driving motion error of small units. In order to make linear movement of the spherical robot that can smooth start, stop and speed control, the paper design a method for linear motion driven spherical robot with double eccentric mass control. The improved driving eccentric mass of robot total mass ratio is larger, that can provide the eccentric torque and inertia moment more, the robot has higher motion velocity.展开更多
文摘The paper introduces the testing system and analysis method for the dynamic axis center motion track of the bearing. The system consists of driving device of air spindle, measuring microdistance instrument by electric capacity in noncontact, signal analysis instrument and the computer hardware and software. Many kind signal evaluation methods are adopted. The testing accuracy is high. Actual error is ≤0.02 μm. The testing system can make measurement and analysis for axis center motion of precision miniature bearing and rotating spindle of military gyroscope and effectively show dynamic performance.
文摘The paper design a double eccentric mass driven spherical robot, the ball is also subject to eccentric force and inertia force that generate by internal drive units in movement. Due to the unique spherical shell, the robot in the dynamic state transition process, Friction cannot offset the robot motion state change due to internal driving motion error of small units. In order to make linear movement of the spherical robot that can smooth start, stop and speed control, the paper design a method for linear motion driven spherical robot with double eccentric mass control. The improved driving eccentric mass of robot total mass ratio is larger, that can provide the eccentric torque and inertia moment more, the robot has higher motion velocity.
