DESIGN OF MACHINERY CONTENTS 6.3 Instant Centers of Velocity 249 6.4 Velocity Analysis with Instant Centers 256 Angular velocity Rafto..... ….257 Mechanical Advantage .259 Using Instant Centers in Unkage Design. 267 6.5 Centrodes 263 A 'UnkJess-Unkage ..266 Cusps 267 6.6 Velocity of Slip 小小小小小 267 6.7 Analytical Solutions for Velocity Analysis. 271 The Fotlbar Pin-Jointed Unkage277 The Fotlbar Slider-Crank........ 274 The Fotlbar Inverted Slider-Crank....... 276 6.8 Velocity Analysis of the Geared Fivebar Linkage 278 6.9 Velocity of Any Point on a Linkage 279 6.10 References 280 6.11 Problems 281 Chapter 7 Acceleration Analysis.... 300 7.0 Introduction 300 7.1 Definition of Acceleration 300 72 Graphical Acceleration Analysis 303 7.3 Analytical Solutions for Acceleration Analysis 308 The Fourbar Pin-Jointed Linkage.....308 The Fourbar Slider-Crank ..... .377 Coriolis Acceleration m 37 The Fourbar Inverted Slider-Crank...375 7.4 Acceleration Analysis of the Geared Fivebar Linkage 319 7.5 Acceleration of any Point on a Linkage 44444小 320 7.6 Human Tolerance of Acceleration 322 7.7 TK 324 7.8 Linkages Of MBars......... 327 7.9 References 327 7.10 Problems 327 Chapter 8 Cam Design 345 8.0 Introduction 345 8.1 Cam Terminology 346 Type of Follower Motion..... 347 Type of Joint Closure348 Type of Follower 348 Type of Cam......... .348 Type of Motion Constraints 357 Type of Motion Program 357 8.2 S VA J Diagrams 352 8.3 Double-Dwell Cam Design-Choosing S VA J Functions 353 The Fundamental LawofCamDesign 4044444444444444044444444。。44… .356 Simple Harmonic Motion (SHM)....... 357 Cycloidal Displacement 359 Combined Functions… 8.4 .362 Single-Dwell Cam Design-Choosing S VA J Functions 374 8.5 Polynomial Functions 378 Double-Dwell Applications of Polynomials.......................................378 Single-Dwell Applications of Polynomials........3826.3 Instant Centers of Velocity ........................................................................ 249 6.4 Velocity Analysis with Instant Centers ..................................................... 256 Angular Velocity Raffo ............................................................................ 257 Mechanical Advantage ......................................................................... 259 Using Instant Centers in Unkage Design ................................................ 267 6.5 Centrodes .................................................................................................... 263 A 'UnkJess-Unkage ................................................................................. 266 Cusps ........................................................................................................ 267 6.6 Velocity of Slip ............................................................................................. 267 6.7 Analytical Solutions for Velocity Analysis ................................................ 271 The FotIbar Pin-Jointed Unkage ............................................................ 277 The FotIbar Slider-Crank ......................................................................... 274 The FotIbar Inverted Slider-Crank ......................................................... 276 6.8 Velocity Analysis of the Geared Fivebar Linkage ................................. 278 6.9 Velocity of Any Point on a Linkage ......................................................... 279 6.10 References ................................................................................................... 280 6.11 Problems ....................................................................................................... 281 Chapter 7 Acceleration Analysis ....................................................... 300 7.0 Introduction ................................................................................................. 300 7.1 Definition of Acceleration ......................................................................... 300 7.2 Graphical Acceleration Analysis ............................................................. 303 7.3 Analytical Solutions for Acceleration Analysis ....................................... 308 The Fourbar Pin-Jointed Linkage ............................................................ 308 The Fourbar Slider-Crank ......................................................................... 377 CorioIis Acceleration ............................................................................'" 3 73 The Fourbar Inverted Slider-Crank ......................................................... 375 7.4 Acceleration Analysis of the Geared Fivebar Linkage ........................ 319 7.5 Acceleration of any Point on a Linkage ................................................ 320 7.6 Human Tolerance of Acceleration .......................................................... 322 7.7 Jerk ................................................................................................................ 324 7.8 Linkages of N Bars ....................................................................................... 327 7.9 References ................................................................................................... 327 7.10 Problems ....................................................................................................... 327 Chapter 8 Cam Design ........................................................................ 345 8.0 Introduction ................................................................................................. 345 8.1 Cam Terminology ....................................................................................... 346 Type of Follower Motion .......................................................................... 347 Type of Joint Closure ............................................................................... 348 Type of Follower ....................................................................................... 348 Type of Cam ............................................................................................ 348 Type of Motion Constraints ..................................................................... 357 Type of Motion Program ......................................................................... 357 8.2 S V A J Diagrams ........................................................................................ 352 8.3 Double-Dwell Cam Design-Choosing S V A J Functions ................... 353 TheFundamental LawofCamDesign .................................................. 356 Simple Harmonic Motion (SHM) ............................................................. 357 Cycloidal Displacement ......................................................................... 359 Combined Functions ............................................................................... 362 8.4 Single-Dwell Cam Design-Choosing S V A J Functions ...................... 374 8.5 Polynomial Functions ................................................................................. 378 Double-Dwell Applications of Polynomials ........................................... 378 Single-Dwell Applications of Polynomials .............................................. 382