Improved WTG Gearbox Reliability Through Novel Solutions
The overall cost of unscheduled repair to gearboxes installed in offshore WTGs is quantified to illustrate the value of improving design analysis and to justify the development of novel solutions. The following are discussed: · Improved analysis using a non-linear analysis suite (SABR) is reviewed with regard to predicting gear and bearing life more accurately, based upon validated load and alignment calculations. · The potential for surface coating of gears using Tungsten -Carbon Carbide is discussed. · A working prototype of a magnetic ratio is presented based upon magnetic FE. Such devices have significant potential to replace stages of conventional epicyclic gear trains with improved reliability. · The diverse bearing requirements within a WTG are reviewed and alternative bearing devices are proposed or novel alternatives are described, including methods of avoiding wear and damage due to sustained uni-directional radial loading. The approaches involved rotating the previously fixed portion of a rolling element race to distribute wear – typically increasing life by up to 900％. · Further consideration is applied to overcome the problem of rapid transient loading of rolling element bearings at the input to the generator.
WTG indirect transmission gearbox reliability cost super-life bearing hydrostatic surface coating magnetic ratio
Mr Lee Sykes Mr Jon Wheals Mr Andy Turner Mr Oliver Hall Dr Jon Farley
Executive Vice President/Global Product Group Director Chief Engineer: Innovation, Driveline and Transmission Systems Technical Specialist: Electro-magnetic Machines Principle Engineer: Transmission Design Technical Specialist: Surface Treatments
国际会议
北京
英文
2008-10-29（万方平台首次上网日期，不代表论文的发表时间）