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- Numerical results show that the method can localize and quantify the damage in truss structures precisely. 数值试验表明,该方法对桁架结构的损伤可进行精确的定位和标定。
- In this paper, the calculation program of optimal design and ultimate analysis of truss structures is worked out. 本文编制了网架结构优化设计和极限分析的计算程序.并对网架结构进行了分析。
- Application of the method to drilling mast and some other truss structures demonstrates the usculness and accuracy of the algorithm. 结果表明,本方法对于大柔度结构的设计是十分必要的,一些石油井架用本方法进行设计将使结构更加经济可靠。
- A genetic-tabu algorithm (GATS) was given for topology optimization of truss structures subject to multiple loading cases and constrains. 摘要采用遗传禁忌搜索算法求解多工况多约束的桁架结构拓扑优化问题。
- The exemplification results expatiated that the method proposed is really simple and efficient to the layout optimization of truss structures. 算例表明,该遗传算法对桁架结构的布局进行优化设计比较容易实现,简单、有效,可以产生很好的效益。
- The former overestimated the stability resisting capacity of truss structures through examination of engineering application. 目前,桁架结构稳定分析有两个理论:经典的特征值理论和几何非线性临界点理论。
- Considering the judgment of dynamic instability of truss structures, a stress rate method for dynamic instability analysis of truss structures was proposed. 摘要针对结构动力失稳的判定问题,提出了一种适用于杆系结构动力稳定分析的应力变化率法。
- Genetic Algorithm (GA) is applied to solve the topological design optimization problems of discrete structures including truss structures and frame structures. 采用遗传算法求解包括桁架结构和框架结构的离散型结构拓扑优化问题。
- Use of large-span truss structure, double-color steel roof surface pressure. 采用大跨度网架结构,屋顶双层彩钢板压面。
- Considering the fuzziness and the randomness of the truss structures at the same time, using the entropy concept, pure fuzzy dynamic structures are given through transforming the probability to fuzziness. 摘要考虑桁架结构同时具有模糊性和随机性,利用模糊熵和概率熵的概念,将结构的随机性和模糊性统一为结构的模糊性,将模糊随机结构转化为纯粹的模糊结构。
- Based on MSC/NASTRAN software, this paper uses the PATRAN/PCL (PATRAN Command Language) to secondly develop a new software of optimum design module for sectional optimization of truss structures. 本文利用MSC/PATRAN提供的PCL语言,针对桁架结构的截面优化对MSC/NASTRAN优化模块进行了二次开发。
- Having made a calculation of the actual engineering, the results indicate that the influence of the bar buckling can not be ignored when the reliability for truss structures is calculated. 随后,对该桁架结构体系进行了基于受压杆件稳定的结构体系可靠度计算分析,结果表明:对类似桁架结构体系进行可靠度计算时,失稳的影响不能忽略。
- The exemplification results showed that the proposed method is convenient, fast and efficient to the topology optimization of truss structures subject to multiple loading cases and constrains. 数值算例表明,该方法用于求解多工况多约束的离散变量桁架结构拓扑优化问题是方便、快速和有效的。
- Most cantilever bridges have two arms of truss structure that meet or support a section between them. 大多数悬臂桥都有两个桁架臂用以对接或支撑两臂之间的桥段。
- RESEARCH ON LATERAL WIND VIBRATION PERFORMANCES OF A LARGE SPAN TRUSS STRUCTURE OF BAOSTEEL CO. LTd. 上海宝钢大跨桁架横风向风振性能研究。
- The truss structure featured by small flow resistance,strong toughness and less pressure loss. 具有流阻小,刚性好,压力损失小的桁架式结构。
- The main parts in the upper structure that bear pressure are of pipe truss structure and pin shaft link. 本机上部结构的主要受压构件为管绗结构,销轴连接。
- In order to deal with the problem of severe overloading on a main steel beam of dust catcher in a power plant,an external prestress truss structure for reinforcement is presented. 针对某电厂除尘器主钢梁严重超载的情况,提出体外预应力桁架加固方案。
- It has been shown that there was a great influence of the different behaviour effect on the bearing capacity of the truss structure. 证明材料的拉压性能不同对桁架结构承载能力的影响是很明显的。
- Some of the damage indices are insensitive to the structural damage when using dynamic parameters changing for damage diagnosis of truss structure. 摘要利用结构动力参数的改变对空间钢网架进行损伤分析,其中许多指标对损伤并不敏感。