Kinematic analysis of a spatial mechanism for estimating shaking effects

International Conference on Vibration Problems

Murthy, P.S.S.^1 ; Satyadevi, A.^2 ; Krishna, A. Gopala^3 ; Eswaraiah, K.^1

Department of Mechanical Engineering, KITS, Warangal, India^1

Department of Mechanical Engineering, GITAM, Hyderabad, India^2

Department of Mechanical Engineering, JNTUK, Kakinada, India^3

关键词: Analysis and synthesis;    Dynamic performance;    Industrial environments;    Kinematic Analysis;    Noise and vibration;    Reducing vibrations;    Spatial mechanism;    Undergraduate education;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/662/1/012024/pdf
DOI  :  10.1088/1742-6596/662/1/012024

来源: IOP

【 摘 要 】

Spatial mechanisms are the most general category of kinematic devices. They offer the greatest capability to accomplish any desired kinematic task. A mechanism exerts forces and moments on its supporting frame, which result in vibration. Besides of its effect on efficiency, reducing vibration has become inevitable in the current industrial environment where stern standards on noise and vibration prevail. Balancing of shaking forces and shaking moments in mechanisms is important in order to improve their dynamic performance and fatigue life by reducing vibration, noise and wear. The analysis and synthesis of spatial mechanisms which involves extensive vector mathematics and linear algebra is to be simplified to be taught to engineers in undergraduate education. In the present paper the kinematic analysis of a spatial four-link RSCR mechanism is done to get the velocities and accelerations of its various links which is necessary for the estimation of inertia forces in a mechanism.