A Novel Synthesis Method for Nonperiodic Function Generation of an RCCC Mechanism

Author:

Liu Wenrui1,Sun Jianwei1,Zhang Bangcheng1,Chu Jinkui2

Affiliation:

1. School of Mechatronic Engineering, Changchun University of Technology, No. 2055, Yanan Road, Changchun 130012, Jilin, China e-mail:

2. School of Mechanical Engineering, Dalian University of Technology, No. 2, Linggong Road, Ganjingzi District, Dalian 116023, Liaoning, China e-mail:

Abstract

In this paper, the nonperiodic function synthesis of an RCCC mechanism is presented using a wavelet feature parameter (WFP) method. The output function and the sliding displacement of the RCCC mechanism are described by the wavelet approximate and wavelet details. Based on the relationship of wavelet details of the sliding displacement and its scaling, a normalization method for wavelet details of the sliding displacement is presented. The influence of proportional scaling of the linkage lengths is eliminated. An adaptive database is established. The problem of nonperiodic design requirements of RCCC mechanism function synthesis is solved. To demonstrate the feasibility of this method, two numerical examples are proposed. Based on the nonperiodic design requirements, the RCCC mechanisms are designed and simulated using matlab and catia software. The results show that the method proposed is effective for nonperiodic function generation of the RCCC mechanism with multiple positions.

Funder

National Natural Science Foundation of China

People's Government of JiLin Province

Publisher

ASME International

Subject

Mechanical Engineering

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