Kinematic and dynamic analysis and distribution of stress for six-item mechanism

Abstract

Abstract. This paper presents a kinematic and dynamic analysis and distribution of the stress for six-item planar mechanism by means of the SolidWorks software. Graphic dependence of kinematic and dynamic magnitudes of some points is given in dependence on the angle of rotation of the driving item and in dependence on the time. Distribution of the stress in the items is presented in Pa. In relation to the kinematic and dynamic analysis and subsequent simulation of the planar as well as spatial mechanisms, it is great solution to use SolidWorks software program. The considerable advantage of this mentioned program is based on its simplicity from the aspect of modeling and moreover, it is important to point out that utilisation of the mentioned program leads to results which are precise and accurate in the case of the numerical solution of the equations in the whole magnitude referring to motion of mechanism while the given results are obtained in the graphic form.Keywords: kinematic analysis, dynamic analysis, finite element method, planar mechanism Kinematic and dynamic analysis of planar mechanismThe planar mechanism representative (Fig. 1) consists of six bodies and it was used as computational model. Using the kinematic analysis [4][5][6] and dynamic analysis and subsequent simulation [1][2][3], the main objective is connected with the determination and entering of the position domains, speed (velocity) domains as well as acceleration of the individual bodies in relation to the specified input values of the angular velocity for the driving body designated as 2. The angular velocity for the body, designated as 2, is specified in this way: ω 21 =1 °/s and α 21 =0.7 °/s 2 , where ω 21