Dynamic Analysis of Flexible and Rigid Link Systems.

Sugano, Naoki; Honke, Koichi; Imanishi, Etsujiro; Hashimoto, Kazuo

doi:10.1299/kikaic.67.1820

Cited by 2 publications

(1 citation statement)

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“…the rigidity of each leg is weaker than those of the moving and fixed platforms, the deformation of legs cannot be ignored during the process of moving. Meanwhile the deformation of each leg is acting on or coupling with the rigid movement of the whole virtual-axis hybrid polishing machine tool [21][22][23][24][25]. Based on the above analysis, this paper applies the modelling method of dynamics of flexible multibody systems to the dynamic analysis of the virtual-axis hybrid polishing machine tool and obtains the dynamic equations of spatial rigid-flexible coupling multibody systems by the Lagrange equation in order to discuss the dynamic characteristics of the virtual-axis hybrid polishing machine tool and to provide a dynamic model to achieve the optimal control of the virtual-axis hybrid polishing machine tool.…”

Section: Dynamic Model Of the Flexible Multibody System Of The Virtual-axis Hybrid Polishing Machine Toolmentioning

confidence: 99%

Study on the dynamic characteristics of a virtual-axis hybrid polishing machine tool by flexible multibody dynamics

Zhao

Zhang

et al. 2004

Proceedings of the Institution of Mechanical Engineers, Part B:

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This paper establishes the dynamic equations of the spatial rigid-flexible coupling multibody systems for a five-coordinate virtual-axis hybrid polishing machine tool, namely model JDYP51 developed by the authors. The dynamic characteristics of the hybrid machine tool are studied in detail by means of the theory of dynamics of a flexible multibody system and the finite element models of the whole machine tool and each leg respectively. The dynamic simulation of the machine shows that the elastic deformation of each leg is very small during the movement of the machine and the influence of the flexibility of each leg on the trace of moving platform is not obvious due to the characteristics of joints. At the beginning of the movement of the machine, the fundamental frequency of parallel mechanism easily leads to vibration of the machine. Therefore, the stable status of polishing can be obtained at all periods of the movement of the machine except the beginning of the movement.

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