摘要
对燃烧室壳体构件进行优化设计,是改善应力集中状况、防止热变形损伤、提高其承载能力的重要措施。在燃烧室壳体构件优化设计中,本文建立了轴对称构件的边界元全解析敏度分析技术,并将该技术与通用的形状优化设计算法相结合,对燃烧室壳体中的某一平面应力下的构件进行形状优化设计。在优化燃烧室壳体构件时,用加权求和法处理该构件的多目标问题,最后获得满意的结果。
The optimized design of combustor-casing structural members can serve as an important measure for improving stress concentration conditions, preventing thermal deformation-related damages and enhancing their load-bearing ability. During the optimized design of these structural members the authors have employed the technology of boundary-element analytic sensibility analysis for axisymmetric members and combined this technology with the general algorithm of shape optimization design. On this basis a shape optimized design was conducted for combustor-casing structural members being subjected to a plane stress. In optimizing combustor-casing structural members a multi-objective problem was tackled by using a weighted summation method, and satisfactory results were finally achieved.
出处
《热能动力工程》
EI
CAS
CSCD
北大核心
2005年第6期599-602,共4页
Journal of Engineering for Thermal Energy and Power
关键词
燃烧室壳体
轴对称
边界元
优化设计
combustor casing,axisymmetry,boundary element,optimization design
