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  • Contact situations in rigid body dynamics [Elektronski vir]
    Skrinjar, Luka ; Slavič, Janko, 1978- ; Boltežar, Miha
    Rigid body dynamics highly depends on the contact situations. The goal of this research is to simulate the dynamics of a system of rigid bodies with kinematic joints and contact situations, which ... correspond to the imperfections that can be observed at experiment. The basic theory of dynamics describes kinematic joints and impacts as ideal, but in reality, there are always imperfections present, such as clearance of the kinematic joints, surface roughness, friction, lubricated contact and surface wear. In this approach, the numerical simulation of dynamics of multibody system is based on the theory of Absolute Nodal Coordinate Formulation (ANCF) and for contact evaluation a elastic contact force model is used, while numerical integration is done with Runge-Kutta method. Real conditions like clearance and dry friction are included in a revolute joint with a goal to evaluate the effect on the dynamics of multibody system. The approach is presented with a test case of a subassembly in mechanism of a circuit breaker. A custom designed measurement rig was built to evaluate the applied force on a subassembly component and to evaluate contact parameters. The presented experimental and numerical approach showed as appropriate for research of rigid body dynamics of kinematic joints and contact situations with imperfections.
    Vir: Proceedings of ICoEV 2015 [Elektronski vir] (F. 185)
    Vrsta gradiva - prispevek na konferenci
    Leto - 2015
    Jezik - angleški
    COBISS.SI-ID - 14170139

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