【作者】 刘文龙；

【导师】 丁运亮；

【作者基本信息】 南京航空航天大学 ， 飞行器设计， 2004， 硕士

【摘要】 分布式并行优化是在现代结构优化设计过程中，提高现有资源利用效率，缩短设计周期的最佳解决方案。 作者结合并行算法、分布式计算、计算机网络、有限元分析方法，结构优化算法和其他相关学科，改进并开发出基于CORBA的分布式并行优化系统，该系统具有独立的基于CORBA的分布式并行计算模块。具体研究所涉及的内容有遗传算法、分布式计算理论、有限元方法和结构优化等知识。 根据对目前结构优化方法和分布式并行计算方法的研究分析，文中提出基于CORBA的分布式并行优化框架的理论，基于该理论，实际改进并开发出“基于CORBA的分布式并行优化系统”。文中所做主要工作如下： 1．说明了结构优化和分布式并行计算技术的现状，并提出进行分布式并行优化系统设计的必要性。 2．讲述分布式优化框架的实现原理。主要包括系统的面向对象特性，算法的并行化和网络底层的实际互连等。涉及概念有近似、CORBA、节点池、消息驱动等，该部分是系统实际展开设计的基础和依据。 3．依据2中所讲述的优化框架原理，实际开发实现了“基于CORBA的分布式并行优化系统”，并通过几个实际结构优化例子对其进行了验证，证明了该系统的可行性和相对高效性。更多还原

【Abstract】 Distributed paralleled optimization is the best layout to shorten the design cycles and to enhance the utilization ratio of the existing resources during the process of modern structure optimization.In this dissertation, we combined the knowledge of paralleled algorithm, networks, FEM, structural optimization algorithm and others correlative fields, improved and realized a distributed paralleled optimization system with separate module based on CORBA. Relative knowledges on system are dealt with GA (Genetic Algorithm), Distributed computation, Finite Element Method, Structural optimization and other knowledges.According to the research and analysis of current method of structural optimization and paralleled computation, we improved and realized the paralleled optimization system based on CORBA. The work in this dissertation is done as follows:1. Introduced the current status of structural optimization and paralleled computation, and then presents the necessity of designing a distributed paralleled optimization system.2. The realized principle of the system layout is explained, including character of object oriented, parallelization of the computation process and networks connection each other and so on. Those related conceptions such as CORBA, approximation, pool of computer nodes and message oriented are dealt. It is basis and foundation of system realization.3. Based on the technology and theory mentioned in the 2, we realized the design of distributed paralleled optimization system based on CORBA. And then the system is tested with three practical engineering structural-optimization examples, as well as the feasibility and efficiency of the system are proved.更多还原