The main beam is the main hoist gantry crane force components, main beam directly affects the service life of machine.
主梁是葫芦门式起重机的主要受力部件，主梁的质量直接影响到整机的使用寿命。
For the cracking on the chassis of DLQ25A movable crane, the ANSYS program is used to establish the shell-elements FEA model of main beam with supporting leg.
针对DL Q 2 5 A轮胎起重机底架结构开裂的情况，采用ANSYS程序建立了主梁与支腿一体的板壳单元有限元分析模型。
The main achievement has been quoted by Design Criterion of Crane Beam on Rock Wall for Underground Powerhouse(draft) and explanation items.
主要研究成果已被《地下厂房岩壁吊车梁设计规范》（送审稿）及条文说明所采用。
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