Question

Web Site Figure P3,86 (b) able perform is mechanis al uired force (a) Find the expression describing 0 in terms of R, h, and Y (b) Find F as a function of F, R, L4, 0, and y (c) Provide the expression describing the mechanical advantage of this system. 3.90. Refer to Fig. P3.87. nember C. nember C. ember C. ing and pla FI the positice R L ters. and friction h r. ers and the Figure P3,87 ormula and load? (Us

(Mechanism Design Analysis and Synthesis Erdman 4th)
this is mechanism design problem
let me know solution of this problem plz

Answer 1

(a) consideY the two triangle AABC and A AED Which is SimilaY triangles. Theve fore E AB B C R EO AE from figure; AB = h; BC = h.tane AE h-BE EO= RSiny h tape R.SINY h-BE A R. SinY = auDt h- BE Said - R RCOSY hencej oB- oE Now BE R Sin h CR-RCOSY) R SinY h-RCi-Cos%) tane e+an R Siny tane h-R(I-(os) of

(b) Force F is acting on a disc in tamen tial alirec tionwhich Rod L as shown in below FB0 act on the Fixst we nee to find a. From geametry a Fi / aFT Aaa A O' +TT- Y=TT OA trom geometry We need to fin d NOw AC= RSin and R.Siny= OA Sin e AC= OA S in e A R Sin OA E Sine 3.8 PA Now momend abauto due to force F 1s : F.L4 And, moment abouto due to force Fi is: A Et CosC8-e) Fi (os(y-e). R Sint J 4 Sine same in masnitude, moment KOYE This bath (X263--i IME,ol .L4 Fi- (os(Y-).R Sing sine F.

F Fix R X COS (-0)x Sin L4 Sine Cos(Y-e)x Sin FI Fi CC) From above Yesult 1 X Sine L4 F knawn as mechanical as vantage Hen ce is and Fi CascY-e) Sinx F Fi mechanical adlvantage 1 X- L4 Sine