The effect of initial geometrical imperfections on the stability of sheet space structure is a key to its design and calculation.
初始几何缺陷对板片结构体系稳定性的影响是板片结构计算和设计中的一个关键问题。
At present, in the design of reticulated shells, the initial deformation of the first buckling mode(the dimension is L/300) of the structure is introduced as initial imperfection.
目前在网壳结构设计中，初始缺陷是按照第一阶屈曲模态的L/300（L为结构跨度），对结构施加初始变形。
The initial conception on general structure of information system for the integrative and intellectual design are also put forward.
提出了“铁路勘测设计一体化”信息系统总体结构的初步构想。
Getting the data through computer programming, it can offer reference for choosing the structure parameter rationally in initial stage of structural design.
通过微机编程获得数据，为结构设计初期合理选取结构参数提供参考。
Compared with general ANN design, this paper puts forward a new operator, BP operator, and optimizes the ANN's initial weights and structure at the same time.
本文与一般的基于遗传算法的神经网络设计相比，提出一个新型算子——BP算子，并对神经网络的权值和结构同时优化。
Taking the minimum initial-strain of the structure as the objective function of the optimal prestress design and the minimum light of the structure as the.
以初始应变能最小为预应力优化目标和重量最轻为截面优化目标进行了优化设计，获得了合理的初始预应力分布和截面大小。
The stiffness of bus body has a tremendous influence on the performances of bus-body. Therefore it is important to meet the requirements of the stiffness in initial bus-body structure design.
客车车身刚度对客车车身性能有很人的影响，满足车身刚度要求是客车车身结构初步设计的一个重要目标。
The stiffness of bus body has a tremendous influence on the performances of bus-body. Therefore it is important to meet the requirements of the stiffness in initial bus-body structure design.
客车车身刚度对客车车身性能有很人的影响，满足车身刚度要求是客车车身结构初步设计的一个重要目标。
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