The extreme wind loads that tend to occur in the desert environment place high demands on the safety performance of the equipment,the design of the high altitude lifting frame mainly relies on engineering experience,which has deficiencies in terms of more materials used,higher self-weight and higher safety margin.In view of this,CREO software was used to establish a 3D solid model of high altitude lifting frame,the wind load was equate to static load according to the national standard,and ANSYS software was used to simulate the mechanical characteristics of high altitude lifting frame under extreme wind load.The calculation results show that there is no risk of resonance between the system and the wind load,and the maximum stress amplitude of the system under the extreme wind load is 166 MPa.An optimized design of high altitude lifting frame with fine design and economic cost was further proposed.The results of the statics calculation of the optimized frame under extreme wind load show that the maximum stress amplitude of the optimized sys-tem is reduced by about 35％,while the overall weight reduction of about 17％can be achieved.
关键词
高空升降框架/风载/静力学/优化设计
Key words
high altitude lifting frame/wind load/statics/optimized design
维普
万方数据