EES的“回转轴承分析”手册.pdfVIP

Slewing Bearing Analysis Stiffness Static rating Life rating For ball, cross roller and roller bearings www.EES-Gear.ch Recent projects Analysis of a 5m slewing bearing for mining application, Korea Re-calculation for certification, wind turbine pitch/yaw bearing, India/Italy Analysis review and certification assistance, pitch/yaw bearing, India/Korea Comparative analysis for wind turbine pitch and yaw bearings, Germany Analysis methodology study for slewing rings, Spain Various calculations for slewing ring gearboxes, Japan, Italy, India, Germany Your benefit CAE software for bearing rating (basic, modified, reference and modified reference rating) taking into account lubrication, shaft misalignment, housing stiffness and internal bearing geometry Strength and life calculation of large, flexible bearings considering adjacent structures and bolt pre-tensioning Certification assistance e.g. for wind turbine bearing certification Bearing rating using application load spectra, analysis for certification Training on bearing rating theory and software Our approach We use KISSsoft software, calculations along DIN and ISO standards (implemented in Excel and MathCad) and FEM analysis (ABAQUS). Combining different calculation methods, we can handle simple and complex problems alike. FEM calculations are only used to determine rolling element loads and to account for the elasticity of adjacent structures. Non linear spring stiffness of rolling elements is taken into account. Stress calculations are then done more accurately using formulas based on Hertzian theory including modifications for edge stresses. These stresses are then the basis for a static or life rating. Our calculations are in line with ISO76, ISO281 DIN ISO 281-4 / ISO TS 16281 ISO81400 NREL DG 03 Harris/Kotzalas, “Essential Concepts of Bearing Technology” an