Dynamic Reliability-Based Robust Optimization Design for the Hoist Drum Web Plate

Abstract

Considering the traditional safety factor method of reliability design can’t well reflect the uncertainty of loads, and error is obvious by using the tension of the wire rope represents the stress state of the hoist drum web plate. Established stress model of the dangerous section of the hoist drum web plate. Deduced reliability index and reliability by using stress & strength interference theory and perturbation method. Sensitivity analysis and robust optimal design was performed on this basis. The results show that the strain on the hoist drum web plate has a great influence on reliability of itself, and the reliability robust optimization design information can be obtained by using strain on web plate and reliability as optimization objectives. These not only provide the theoretical basis for the safety maintenance and design of the hoist, but also have the practical application value for reliable and efficient delivery of hoist.