Impact Analysis about Stroller Tire and Barrier

• Main Authors: Guo-Fong Jheng, 鄭國夆
• Other Authors: Yi-Chern Hsieh
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/7fg58c

碩士 === 國立虎尾科技大學 === 機械與機電工程研究所 === 102 === Nowadays affected by the low birth rate, families with infants and young children are used stroller, its function can be used not only at home away from home more to solve the problem of infant travel, in addition to travel outside more focus on safety performance; road conditions in the promotion process structure and vehicle performance tire has a great influence. Analysis is generally assumed that the road tires for a smooth plane, in fact, the road has potholes, protruding obstacles or Britain slope sections, etc.; when the tire collision, these obstacles so that the rolling tire collision force and send it to the body through the tire, causing the vehicle vibration and driving stability even endanger the safety of passengers, the tire finite element analysis method, the tire model is often static model or a single model, but many important properties of the tire structure is obtained in the process of moving them to react. Therefore, to simulate the process of moving the performance is a must establish dynamic rolling tire model and simulate the process of tire bumping into obstacles of the road, so this study the three-dimensional structure of the stroller when a tire is changed contact mechanics, finite element simulation software COMSOL dynamic response barricades of tires collision; article uses two solid tires and tire tire shape and material, and to investigate the collision process is under stress reaction save material, tire rubber, PVC two materials, combined with PVC, Nylon two materials of five-spoke wheels Department spoke wheels with three lines were analyzed; given load and speed of the tire and road obstructions collide, the outcome of discussions by analyzing the shape and thickness of the rim structure of the different tire types are roadblocks size and distribution of the collision stress situations. Stroller tire structure and barricades of crash analysis showed that use of the material Nylon material part of its rim at the rim spoke with three lines of five lines spoke of the stress response of the collision by less than PVC material; five part series on the rim structure compared with the three lines of the spokes spokes, drawn from the results of the chart with three lines spoke rim structure as collision stresses are lower than its five-spoke system, showing the structure of coarser spoke rims its ability to resist collision better; Department consists of three lines with five-spoke wheels of rubber, PVC and Nylon material structure and composition of the whole tire, the tire structure obtained from both the material and the roadblocks to Nylon wheels and tires and material consisting of less than the equivalent stress collision Man in other configurations, Youyi tire and tire rubber material Nylon material structure of three lines consisting spoke wheels, which can effectively reduce the push strollers on a road tire barricades by the collision response.