Mechanics of MachinesOxford University Press, 2005 - 508 páginas Mechanics of Machines is designed for undergraduate courses in kinematics and dynamics of machines. It covers the basic concepts of gears, gear trains, the mechanics of rigid bodies, and graphical and analytical kinematic analyses of planar mechanisms. In addition, the text describes a procedure for designing disc cam mechanisms, discusses graphical and analytical force analyses and balancing of planar mechanisms, and illustrates common methods for the synthesis of mechanisms. Each chapter concludes with a selection of problems of varying length and difficulty. SI Units and US Customary Units are employed. An appendix presents twenty-six design projects based on practical, real-world engineering situations. These may be ideally solved using Working Model software. A CD-ROM, included in every copy of this book, contains virtual moving models of a wide range of machines, including engines, meshing gears, cam mechanisms, intermittent motion mechanisms, pumps, shaft couplings, locks, braking systems, threaded connections, and a synchronizer. Most of these models are three-dimensional and allow the user to highlight a component or process of interest as well as alter both the point-of-view and zoom during the simulated motion. In addition, icons in the book's margins enable the reader to readily identify the corresponding files on the CD-ROM. CD-ROM Highlights .Offers more than 140 files of interactive virtual models and video clips of a diverse assortment of machines and mechanisms |
Contenido
INTRODUCTION | 1 |
Problems | 35 |
GRAPHICAL KINEMATIC ANALYSIS OF PLANAR MECHANISMS | 81 |
Derechos de autor | |
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acceleration of link acceleration polygon addendum circle angular acceleration angular velocity B₂ base circle base link base pivot cam profile center of mass circle diameter cm/sec² complex number components configuration constant Coriolis acceleration coupler point dependent variables determine direction disc cam mechanism displacement diagram drive torque EXAMPLE flywheel four-bar mechanism Free body diagram gear teeth gear train shown Gears Model illustrated in Figure in/sec² input instantaneous centers involute involute gear kinematic pairs line of action load torque located loop machine magnitude Mechanism Model mechanism shown moment of inertia motion N₁ N₂ number of teeth Oldham coupling pinion pitch circle planetary gear train polar mass pressure angle r₁ rad/sec CCW respect rotational speed rpm CW shaking force shown in Figure shows slider crank mechanism speed of link speed ratio spur gear straight spur gear Table tooth turning pair values vector velocity of point velocity polygon Video wheel y₁