Dynamic Performance Evaluation of a 2-DoF Planar Parallel Mechanism | Zendy

Hao Qi | Zendy; Liwen Guan | Zendy; Jianxin Wang | Zendy

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Dynamic Performance Evaluation of a 2-DoF Planar Parallel Mechanism

Author(s) -

Hao Qi,

Liwen Guan,

Jianxin Wang

Publication year - 2012

Publication title -

international journal of advanced robotic systems

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.394

H-Index - 46

eISSN - 1729-8814

pISSN - 1729-8806

DOI - 10.5772/54731

Subject(s) - acceleration , computer science , mechanism (biology) , planar , function (biology) , factor (programming language) , virtual work , work (physics) , control theory (sociology) , simulation , physics , finite element method , artificial intelligence , classical mechanics , computer graphics (images) , control (management) , quantum mechanics , evolutionary biology , biology , programming language , thermodynamics

The acceleration performance function and dynamic performance evaluation combining the acceleration, velocity, gravity and external force of a 2-DoF planar parallel mechanism are presented in this paper. By means of the principle of virtual work, the inverse dynamic model and acceleration performance function of the planar parallel mechanism are setup. Based on the factors in the acceleration performance function, the effect on the acceleration performance of parallel mechanisms is investigated. Then a new method considering the acceleration factor, velocity factor, gravity factor and external force factor for dynamic performance evaluation of the parallel mechanism is introduced, which can evaluate the dynamic performance of high-speed parallel mechanisms more exactly. Based on this method, the evaluation indices used in dynamic optimization are introduced. These indices overcome the limitation of commonly used indices, and lay the foundation for dynamic optimization of parallel mechanisms

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