上海交通大学：《Design & Manufacturing II and Project》课程教学资源（作业）Prob 9-35 to 9-36

DESIGN OF MACHINERY 4th Ed. by ROBERT L NORTON ©McGraw-Hill2008 C-48 /B-28 ARM B-16 20 -ARM RPM A Wa=20 RPM C-15 W.=40 RPM A-7 0=40 FIXED D-60 DRUM A-72 (a) (b) FIGURE P9-5 Problems 9-35 to 9-36 From P.H.Hill and W.P.Rule.(1960).Mechanisms:Analysis and Design,with permission 9-35 Figure P9-5a shows a compound epicyclic train used to drive a winch drum.GearA is driven at 20 rpm CW and gear D is fixed to ground.The tooth numbers are indicated in the figure.Determine the speed and direction of the drum.What is the efficiency of this *Answers in Appendix F. train if the basic gearsets have Eo=0.98? These problems are suited 19-36 Figure P9-5b shows a compound epicyclic train.The arm is driven CCW at 20 rpm.Gear to solution using Mathcad. A is driven CW at 40 rpm.The tooth numbers are indicated in the figure.Find the speed Matlab,or TKSolver of the ring gear D. equation solver programs

DESIGN OF MACHINERY 4th Ed. by ROBERT L. NORTON © McGraw-Hill 2008 FIGURE P9-5 Problems 9-35 to 9-36 From P. H. Hill and W. P. Rule. (1960). Mechanisms: Analysis and Design, with permission (a) (b) * Answers in Appendix F. † These problems are suited to solution using Mathcad, Matlab, or TKSolver equation solver programs. *†9-35 Figure P9-5a shows a compound epicyclic train used to drive a winch drum. Gear A is driven at 20 rpm CW and gear D is fixed to ground. The tooth numbers are indicated in the figure. Determine the speed and direction of the drum. What is the efficiency of this train if the basic gearsets have E0 = 0.98? †9-36 Figure P9-5b shows a compound epicyclic train. The arm is driven CCW at 20 rpm. Gear A is driven CW at 40 rpm. The tooth numbers are indicated in the figure. Find the speed of the ring gear D