| Summary: | 碩士 === 國立交通大學 === 機械工程系所 === 94 === This study concentrates on using the computer-aided engineering analysis technique in the design of a motorcycle frame made of Aluminum alloy. The structure deficiencies can be found, and a modification strategy can be provided to obtain a better structure in terms of both the strength and stiffness.
The finite element analysis technique is employed to simulate the prototype of a motorcycle frame. The strength and stiffness are evaluated using commercial software CATIA. The statically weak regions are identified by applying static loads, and are then strengthened by adding stiffeners. With minimum weight set as the design objective, the geometrical design variables are defined and parametrized. Under the constraints of specified strength and stiffness, the optimal structure can then be obtained. At last, The concept design of a new motorcycle frame is obtained by using the topology method under stiffness requirement for the same load condition.
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