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大跨度门式起重机作为一种重要的生产工具被广泛的应用于国民经济的各个行业,并逐步向大型化和高速化发展,这就对大跨度门式起重机的结构提出了更高的要求,为了使大跨度门式起重机的结构系统具有更好的稳定性,同时具有较轻的质量和更稳定的工作性能,就要在设计上更加优化起重机的结构系统,本文通过对大跨度门式起重机设计的模型化入手,对起重机的基本结构组成和建立数学模型的策略进行全面阐述,并进一步对大跨度门式起重机的结构优化设计中的目标函数、设计变量和约束条件进行分析,为起重机的结构优化提供关键变量,最终实现高大跨度门式起重机的结构稳定性、并在保证结构整体刚度要求的情况下,达到减少起重机自重的目的。
As an important production tool, the long-span gantry crane is widely used in various industries of the national economy, and gradually to large-scale and high-speed development, which put forward higher requirements for the structure of long-span gantry crane, In order to make the structural system of long-span gantry crane have better stability, at the same time with lighter quality and more stable working performance, it is necessary to optimize the structural system of the crane in the design. In this paper, Design of the model to start with the composition of the basic structure of the crane and the establishment of the mathematical model of the strategy for a full description and further optimization of the structural design of long-span gantry crane in the objective function, design variables and constraints analysis for the crane Structural optimization to provide the key variables, the ultimate realization of high-span gantry crane structural stability, and to ensure the overall stiffness of the structure of the case, to achieve the purpose of reducing the weight of cranes.