tailieunhanh - Ebook Mechanical design an integrated approach: Part 2

(BQ) The book provides a brief but comprehensive listing of derivations for users to avoid the "cookbook" approach many books take. Numerous illustrations provide a visual interpretation of the equations used, making the text appropriate for diverse learning styles. The approach is designed to allow for use of calculators and computers throughout, and to show the ways computer analysis can be used to model problems and explore "what if?" design analysis scenarios. | í Applications is iiilM Hill Hill UiH1 1 i- I Outlme Chapter 9 Chapter 10 Chapter XI n Chapter 12 IS I iptcr Chapter 14 Chapter 15 Chapter 16 Chapter 17 Shafts and Associated Parts Bearings and Lubrication O spur Gears Helical Bevel and Worm Gears Belts Chains Clutches and Brakes Springs Power Screw S Fasteners and Connections Axisymmetric Problems in Design Finite Element Analysis in Design Shafts and Associated Parts Outline A Introduction Materials Used for Shafting IỆẠ Design of Shafts in Steady Torsion LLC Combined Static Loadings on Shafts . Design of Shafts for Fluctuating and Shock Loads Interference Fits ILL L. Critical Speed of Shafts 1 Mounting Parts ly. LL . Stresses in Keys ỆOt. Splines. Couplings Universal Joints . -J . 344 PART ỉ I o Applications I INTRODUCTION Shafts are used in a variety of ways in all types of mechanical equipment. A shaft usually a slender member of round cross section rotates and ưansmits power or motion. However a shaft can have a noncircular cross section and need not be rotating. An axle a nonrotating member that carries no torque is used to support rotating members. A spindle designates a short shaft. A flexible shaft transmits motion between two points . motor and machine where the rotational axes are at an angle with respect to one another. The customary shaft types are sưaight shafts of constant or stepped cross section and crankshafts Figure . The former two cany rotating members such as gears pulleys grooved pulleys sheaves or other wheels. The latter are used to convert reciprocating motion into rotary motion or vice versa. Most shafts are under fluctuating loads of combined bending and torsion with various degrees of stress concentration. Many shafts are not subjected to shock or impact loading however some applications arise where such load takes place Section . Thus the associated considerations of static sưength fatigue strength and .