Impact and Damping Properties of Braided Composite Spiral Spring with Different Fibres

• Main Authors: Chun-Kai Chiu, 邱俊凱
• Other Authors: Chang-Shuan Chiu
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/69769891638446312922

碩士 === 逢甲大學 === 紡織工程所 === 94 === In this experiment, composite spiral springs were made with three kinds of fibre prepreg i.e carbon fibres, kevlar fibres and E-glass fibres. Different kinds of cured springs were then assembled as respective shock absorber systems and their performance such as the compression load under 1-in deformation, the damping properties of assembled absorber system and the lateral impact resistance were explored. The experimental results show that the composite spring made of carbon / E-glass composition structure can gain the highest compression load under 1-in deformation with no damage occurred in the body of the spring. For the carbon / E-glass composition is 50% to 50%, the maximum compression load of the spring can be 470 lb/in with a maximum deformation of 1.6 in. As far as the damping properties are concerned, the absorber system composed of half to half carbon and E-glass fibres will be able to obtain the best damping performance, which fits to an economic and practical consideration. With the same composition of carbon and E-glass fibres, composite springs can also have higher energy absorption, which means c50g50 composition will be the ideal structure of the shock absorber system applied on bike.