A Multi-objective Optimization Design Method for Worm Transmission
The traditional design method of worm transmission mainly involves designers drawing on existing design examples and experience,first selecting the basic parameters,and then verifying whether these parame-ters meet the requirements for use.If the requirements are not met,the parameters will be re selected for verifi-cation.If the requirements are met,it will be used as the final design scheme.Due to the different parameters selected by different designers,there may be different design schemes for the same design requirement,and the scheme is generally not the best.On the basis of excluding subjective factors in traditional design methods,the multi-objective optimization design method takes the worm gear crown volume,worm transmission center dis-tance,sliding speed and other objectives closely related to worm manufacturing cost and transmission perform-ance as optimization objects,establishes an optimization objective function,determines design constraints,and uses relevant software optimization toolboxes to find the optimal solution for optimization.The results show that compared with conventional design,multi-objective optimization design significantly reduces the volume of worm gear crown by 65.42%and reduces the transmission center distance by 24.8%,while slightly improving the transmission efficiency.The optimization effect is significant,and the overall performance of the mechanism is stronger after optimization.
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