Simulation Driven Improvement of Worm Gearset Performance Using Virtual Prototype
Journal Title: RECENT - Year 2012, Vol 13, Issue 35
Abstract
This study aims to present a contemporary approach for improvement of gearset output performance, based on virtual prototype. Powerful advantage of accessing gears parameters in detail at early stage of product development allows saving expenses and time to bring new product to the market by reducing the time for excessive physical prototyping and testing. Moreover, it is possible to quantify important parameters, that could not be measured directly by tests, and thus, to reach optimal design in cases of extreme loading. Specific focus in this paper is set on a worm gearset, used for safety device in lifting equipment for nuclear power plants. The gear pair works as safety brake, using frictional parameters, typical for worm gearsets. The study is initiated after observed failures on physical prototype and the necessity of design improvement to meet requested performance. Some of the requirements are controversial and a balanced solution of the design parameters set is needed. Virtual prototype is used to be explored using numerical techniques, especially Finite Element Method. Nonlinear model of contact behaviour is used to increase the accuracy of modeled physics task. An initial design is explored and analysed, which is used as a basis for subsequent improved design development. Both initial and optimal design are compared and analysed. Complete research illustrates a successive implementation of an approach, based on virtual prototyping, for specific gear design development. The main result is measured in saved time for physical prototyping and reaching an optimal solution.
Authors and Affiliations
Konstantin KAMBEROV, Georgi TODOROV, Borislav ROMANOV, Tsvetozar IVANOV
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