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最优化设计是近些年来迅速发展起来的一种新的设计方法。它建立在近代数学最优化方法和计算机程序设计的基础上，成为解决复杂设计问题的一种有效的工具。在机械设计过程中，常常需要根据产品设计的要求，合理确定和计算各项参数，以期达到最佳的设计目标。例如：重量、成本、性能、承载能力、效率等等。这就是说，一项设计常常在一定的技术和物质条件下，要求取得一个技术经济指标最佳的设计方案。最优化设计就能获得这样的设计方案。
The optimal design is a new design method that has been rapidly developed in recent years. It is based on modern mathematical optimization methods and computer program design, and has become an effective tool for solving complex design problems. In the mechanical design process, it is often necessary to reasonably determine and calculate various parameters according to the requirements of product design in order to achieve the best design goals. For example: weight, cost, performance, carrying capacity, efficiency, and so on. That is to say, a design often requires a design scheme with the best technical and economic indicators under certain technical and physical conditions. Optimal design can get such a design.