An optimum research on the structure and shock absorber of the bicycle based on Taguchi Method

• Main Authors: Hong-Ren Chen, 陳泓仁
• Other Authors: 田自力
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/m8u3et

碩士 === 國立虎尾科技大學 === 機械與機電工程研究所 === 98 === Abstract This article is divided into static stimulation and dynamic stimulation. For static stimulation, Taguchi method is applied to study a safety design of a bicycle structure which meets qualification and objective function of optimum design problems. The purpose of this design is to reach the requirement that the maximum stress value should not be higher than material yield stress value. Regarding implementing measure, first, orthogonal array is applied to define parameter, combining with finite element software, ANSYS Workbench, to analyze the stress value of each part of bicycle skeleton. Also, S/N；Signal to Noise Ratio is practiced to evaluate if designed objective functions can meet qualifications. Through factor effect analysis and variance analysis, it’s to confirm the impact of design parameter to objective function. Finally, A factor cylindrical diameter as the adjustment factor will be size adjusted to 19.91mm, making the structure down to a safe range of stress. For dynamic stimulation, with use of ADAMS software for a shock absorber of a bicycle which is using Newton Raphson Method, and that is to learn the influence of vibration to comfort of human’s body, which is evaluated by international standard ISO 2631. The optimum shock absorber function design can be obtained, which is for defining the influence to comfort of human’s body when riding a bicycle, after 12 iterations obtained after the shock parameters k1=13938.58 N/m, c1=664.04 N-s/m, k2=70072.46 N/m, c2=3089.98 N-s/m. Finally, Taguchi method is applied to verify if the parameter is the optimum for shock absorber. The result is that the parameter obtained from Taguchi method is ±3％、±6％ of the once acquired from Numerical Methods.