预应力钢丝缠绕缸体结构轻量化关键技术

李慧丽; 郎利辉; 焦 伟; 苏怀忠

预应力钢丝缠绕缸体结构轻量化关键技术

北京航空航天大学机械工程及自动化学院, 北京 100191

基金项目: 国防科工委"11.5"技改项目

详细信息

作者简介:
李慧丽(1979-),女,河南禹州人,博士生,xuchanglhl@tom.com.

中图分类号: TU 122; TP 391
计量
- 文章访问数: 3977
- HTML全文浏览量: 149
- PDF下载量: 1488
- 被引次数: 0
出版历程
- 收稿日期: 2008-06-19
- 网络出版日期: 2009-07-31

Technology of light-weight design for wire-winding prestressed cylinder structure

School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 针对等静压设备的预应力钢丝缠绕缸体结构的缠绕方法、强度和稳定性理论,定义了一种基于等剪应力缠绕的预应力大型结构轻量化设计模型.结合工作内压为300MPa、缸体内径为500mm的缸体设计实例,利用多岛遗传算法成功地得到了最优化解.质量由传统设计的9.03t减轻到8.53t,减少了5.5%.经专家系统软件和有限元软件验证,方案符合结构强度、刚度条件,预紧态结构不屈服,设计不失稳,并满足内径尺寸大于500mm等设计要求,方案可行.分析表明,该优化模型合理,多岛遗传算法收敛效果好.该方法适用于大吨位、超高温超高压等静压设备的缸体缠绕结构优化问题.
- 遗传算法 /
- 结构设计 /
- 等静压 /
- 轻量化结构 /
- 优化 /
- 专家系统 /
- 仿真
Abstract: Based on the iso-shear stress theory a light-weight wire-winding prestressed working cylinder for isostatic pressing equipment was designed through application of the multi-island genetic algorithm. A light-weight design model was defined. The maximum inner pressure in the cylinder was 300MPa and the minimum inner diameter was 500mm. Within these specifications the weight of the design was minimized. The weight of the conventional design is 9.03 tons, and the weight of the optimized design is 8.53 tons, corresponding to a 5.5% reduction. It was verified by an expert system and CAE software that the optimized cylinder has the necessary strength, rigidity and stability and that the inner diameter is greater than 500mm after prestressed. As it was proved, the design is reasonable and the muti-island genetic algorithm is an structural optimization method which gives a fast convergence. This method can also solve the weight-optimization problems of isostatic pressing equipment for extra-high pressure.
- genetic algorithms /
- structural design /
- hot isostatic pressing /
- light weight structures /
- optimization /
- expert systems /
- simulation

HTML全文

参考文献(1)

[1] 林峰,颜永年.吴任东,等. 现代重型模锻液压机的关键技术[J]. 机械工程学报,2006,42(3):9-13 Lin Feng, Yan Yongnian, Wu Rendong,et al. Key technologies of modern heavy die forging press [J]. Chinese Journal of Mechanical Engineering, 2006,42(3):9-13 (in Chinese) [2] 颜永年,俞新陆. 机械设计中的预应力结构[M]. 北京:机械工业出版社,1989:10-11 Yan Yongnian, Yu Xinlu. The prestressed structure in the mechanical design [M]. Beijing: China Machine Press, 1989:10-11 (in Chinese) [3] 颜永年.预应力钢丝缠绕超高压筒体的应力及变形分析[J].清华大学学报:自然科学版,1978(2):105-118 Yan Yongnian. An analysis of stresses and deformations in a wire-winding prestressed cylinder under high internal pressure [J].Journal of Tsinghua University:Science and Technology, 1978(2):105-118(in Chinese) [4] 颜永年,俞新陆,郭和德.采用复形法的超高压筒体的优化设计[J].清华大学学报:自然科学版,1982,22(3): 102-119 Yan Yongnian, Yu Xinlu, Guo Hede. The optimum design of cylinder under superhigh pressure by utilizing the complex method[J].Journal of Tsinghua University:Science and Technology,1982,22(3):102-119(in Chinese) [5] Kwon Y, Kwon S, Jin S, et al. Convergence enhanced genetic algorithm with successive zooming method for solving continuous optimization problems [J]. Computers and Structures,2003,81(17):1715- 1725 [6] 马福康. 等静压技术[M].北京:冶金工业出版社,1992:367-380 Ma Fukang. Isostatic pressing technology[M]. Beijing:Metallurgical Industry Press,1992:367-380(in Chinese) [7] 玄光男,程润伟. 遗传算法与工程优化[M]. 北京:北京大学出版社,2006: 150-155 Xuan Guangnan, Cheng Runwei. Genetic algorithm & engineering optimization[M]. Beijing:Peking University Press, 2006:150-155 (in Chinese) [8] Comstock C W. Some considerations in the design of thick_wall pressure cylinder [J]. Trans Am Inst Chem Engrs,1943(39):299 [9] 颜永年.预应力钢丝缠绕筒体的设计计算[J].清华大学学报:自然科学版,1978(4): 86-108 Yongnian Yan. Design of wire-winding prestressed cylinder under high internal pressure[J].Journal of Tsinghua University:Science and Technology,1978(4): 86-108 (in Chinese) [10] 孟祥众,石秀华,杜向党,等. 基于遗传算法的振动主动控制优化方法研究[J].计算机测量与控制,2008,16(1):75 Meng Xiangzhong, Shi Xiuhua, Du Xiangdang, et al. Research of active vibration control optimization basedon genetic algorithm[J].Computer Measurement & Control, 2008,16(1):75 (in Chinese)

施引文献

资源附件(0)

访问统计