Optimization Design and Structural Dynamic Analysis of Cycling

Abstract

In this paper, the research object is cycling equipment which is common fitness equipment. The dynamic cha- racteristics of the cycling equipment were optimized in a virtual prototype, and analysis was carried out on its structural mechanical characteristics and dynamic performance, etc. The dynamic characteristics of this cycling equipment were ob- tained through modal, random response and harmonic response analyses, and the structural reasonability after optimiza- tion was verified. This can avoid unreasonable design of the cycling equipment, and an effective analysis and assessment method for cycling equipment design was proposed. With the improvement of people's livelihood, fitness industry enjoys rapid development, so stricter requirement is proposed for the innovation and R&D of fitness equipment. The researchers provide reasonable parameters according to ergonomics, and simulate it by means of the theories of kin- ematics of mechanism, thus optimizing the parameters of the cycling equipment, which can achieve the highest design efficiency. In this paper, simulation and optimization for the simplified mechanism of cycling equipment was realized by Adams software. After optimization, some of its mechanical characteristics were analyzed by building a finite element model of the cycling equipment. The finite element model was used for verifying that the cycling equipment of this dimension could meet the requirement of intensity in daily use. The results show that the speed stationarity of the opti- mized cycling equipment is improved within its operating stroke, which improves the comfort. The optimization of the mechanism design is realized by means of the optimization design of many-body dynamics software and finite element software, which provides a feasible design method for cy- cling equipment.