基于计算智能的起重机金属结构可靠性稳健优化设计研究

项目名称： 基于计算智能的起重机金属结构可靠性稳健优化设计研究

项目编号： No.51275329

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 机械、仪表工业

项目作者： 范小宁

作者单位： 太原科技大学

项目金额： 78万元

中文摘要： 起重机金属结构是起重机的主要组成部分，其设计质量的好坏直接影响整机的技术经济、安全指标和寿命，其计算模型及设计计算都非常复杂，传统的许用应力设计法，不但计算繁琐，劳动强度大，周期长，而且由于保守的结构设计理论，使所设计的起重机整体尺寸和重量过于庞大。本项目以桥、门式起重机为研究对象，以综合提高设计效率及产品的经济性、可靠性和稳健性三个关键质量为目标，以"优化设计"为切入点，按照"优化-可靠性优化-可靠性稳健优化"为研究主线，系统研究起重机金属结构的设计方法，探索智能算法在起重机金属结构优化设计中的有效建模技术和求解方法，解决本项目的技术关键，探索基于强度、刚度、稳定及疲劳可靠性的可靠性优化设计方法，并基于上述可靠性稳定及质量稳定的可靠性稳健优化设计方法，最终形成一套能保证整机结构综合质量并能自动择取最优设计方案的起重机金属结构设计理论和方法，将我国的起重机金属结构设计提升到一个新的高度。

中文关键词： 起重机金属结构；不确定性；优化设计；可靠性；可靠性优化设计

英文摘要： Crane metal structure is the main component of crane. Its design quality has a direct impact on the complete crane's technical and economic security index and life. Its computation model and design calculation are very complicated. The conventional allowable stress design method not only has tedious and difficult calculation, great labour intensity and long design period, but also make the size and weight of the whole crane too big because of the conservative theory of structural design. In this project, bridge crane and gantry crane are thinked of as the research object, to integratedly promote the design efficiency and three key qualities, namely as economy, reliability and robustness of the crane metal structure, is the research target, and optimization design is taked as the entry-point. The design method of crane metal structure is researched systematically from optimization design to reliability-based design optimization and then to reliability-based robust design optimization. The effective modelling technology and solving methods, which solve the key technology of the project, are exploed in the crane metal structure design opitmization based on intelligence algorithm. The reliability-based design optimization method based on the reliability of strength, rigidity, stability and fatigue, and the reliabili

英文关键词： crane metal structure；uncertainty；design optimization；reliability；reliability-based design optimization