Mechanical Optimization of Safety Nuts in Screw Elevators Based on Response Surfaces
As one of the core components of screw elevators,the research of safety nuts is of great significance for improving the safety,stability and wide application of elevators.In order to improve the performance of the safety nut in the screw elevator,based on the working condition of the screw transmission mechanism,the properties of different materials of the safety nut are explored,and mechanical optimization design is carried out.The parameters of the safety factor distribution in the ANSYS static structural fatigue tool are introduced,and the response surface analysis method is used to design the multi-objective optimization of the components,so as to obtain the best design scheme of the part model.The results show that the minimum value and distribution area of the safety factor distribution in the fatigue life are optimized,the mass is reduced by 2.53％,the deformation is reduced by 1.76％,the equivalent stress is reduced by 30.9％,and the first-order mode frequency is also increased by 31.9％.The research results provide theoretical support for the development and application of safety nuts in screw elevators in the future.
safety nutsscrew elevatorresponse surface analysismulti-objective optimizationmodal frequency
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