tailieunhanh - Sổ tay tính toán cơ khí P22

Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS SECTION 22 BEARING DESIGN AND SELECTION Determining Stresses, Loading, Bending Moments, and Spring Rate in Spoked Bearing Supports Hydrodynamic Equations for Bearing Design Calculations Graphic Computation of Bearing Loads on Geared Shafts Shaft Bearing Load Analysis Using Polar Diagrams Journal Bearing Frictional Horsepower Loss During Operation Journal Bearing Operation Analysis Roller-Bearing Operating-Life Analysis Roller-Bearing Capacity Requirements Radial Load Rating for Rolling Bearings Roller-Bearing Capacity and Reliability Porous-Metal Bearing Capacity and Friction Hydrostatic Thrust Bearing Analysis Hydrostatic Journal Bearing Analysis Bearing Type Selection of a Known Load Shaft Bearing Length and Heat Generation Hydrostatic Multidirection Bearing Analysis . | Source HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS SECTION 22 BEARING DESIGN AND SELECTION Determining Stresses Loading Bending Moments and Spring Rate in Spoked Bearing Supports Hydrodynamic Equations for Bearing Design Calculations Graphic Computation of Bearing Loads on Geared Shafts Shaft Bearing Load Analysis Using Polar Diagrams Journal Bearing Frictional Horsepower Loss During Operation Journal Bearing Operation Analysis Bearing Type Selection of a Known Load Shaft Bearing Length and Heat Generation Roller-Bearing Operating-Life Analysis Roller-Bearing Capacity Requirements Radial Load Rating for Rolling Bearings Roller-Bearing Capacity and Reliability Porous-Metal Bearing Capacity and Friction Hydrostatic Thrust Bearing Analysis Hydrostatic Journal Bearing Analysis Hydrostatic Multidirection Bearing Analysis Load Capacity of Gas Bearings DETERMINING STRESSES LOADING BENDING MOMENTS AND SPRING RATE IN SPOKED BEARING SUPPORTS Spoked bearing supports are used in gas turbines large air-cooling fans electricmotor casings slotted for air circulation and a variety of other applications. For the shaft and 6-spoked bearing system in Fig. 1 having three rotor masses and these parameters and symbols FIGURE 1 Shaft and 6-spoked bearing system having three rotor masses. Product Engineering. Downloaded from Digital Engineering Library @ McGraw-Hill Copyright 2006 The McGraw-Hill Companies. All rights reserved. Any use is subject to the Terms of Use as given at the website. BEARING DESIGN AND SELECTION DESIGN ENGINEERING SI values P 10 000 lb at either bearing IS 25 in4 IR in4 A 7 in2 for ring also ES Er 10 X 106 psi L 10 in R 12 in CR in 44 480 N cm4 cm4 cm2 68 900 MPa cm cm cm cm Symbols SI values A spoke cross-section area in2 CS distance neutral axis to extreme fiber of spoke in