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Approximation to the optimum design of a motorcycle frame using finite element analysis and evolutionary algorithms

机译：有限元分析和进化算法逼近摩托车车架的优化设计

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The design of the tubular frame of a chopper motorcycle is a challenging engineering problem due in part to the conflicting nature between the two main design criteria, namely, to minimize the frame mass and to minimize the maximum structural stress. The problem is even more complex under the presence of different kinds of decision parameters: discrete (e.g., standardized tube diameters available in the market) and continuous (e.g., angles and fillets). This project presents an optimization approach for the design of such frame topology based on evolutionary algorithms and employing finite element analysis for structural calculations. The proposed evolutionary algorithm deals with the two mentioned optimization objectives and the mixed decision parameters involved in the design. A communication routine between the structural simulation software and the evolutionary algorithm was developed to automate this hybrid technique. Frames obtained are compared to those of a previous study using a conventional design method, showing important progress in the frame's performance.
机译：斩波摩托车的管状框架的设计是一个具有挑战性的工程问题，部分原因是两个主要设计标准之间的冲突性质，即最小化框架质量和最小化最大结构应力。在存在不同种类的决策参数的情况下，问题甚至更加复杂：离散的（例如，市场上可获得的标准化管直径）和连续的（例如，角度和圆角）。该项目提出了一种基于进化算法并采用有限元分析进行结构计算的框架拓扑设计优化方法。提出的进化算法处理设计中涉及的两个优化目标和混合决策参数。开发了结构仿真软件和进化算法之间的通信例程，以使这种混合技术自动化。将获得的框架与使用传统设计方法进行的先前研究的框架进行比较，显示了框架性能的重要进步。

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