Splines Design of the Friction Clutch Disc

Given:

            D= 25 mm,   d= 22 mm,  n_sp = 24 spline, Tc = 240 N m, SF = 10

Required:
            r_m =    ?    mm,  h =   ?     mm,  b=    ?    mm,  F =  ?  N

Solution:

            r_m = (D+d)/4            =

h = (D-d)/2 =

            b = p D/(2 n_sp) =

            F= Tc*1000/r_m =

A- Require: Steel No.

Given:	Tc = 240  N m, L= 25 mm
Stress:	ts	sbearing	sb
Allowable stress	=F/(nsp As) =F/(nsp b L)	=F/(nsp Abearing) =F/(nsp h L)	=M y /I =(F h/2( b/2))/(nsp L b^3/12) =3 F h/(nsp L b^2)
Ultimate stress
Steel

B- Required: Clutch torque Capacity (T_c)

Given:	Steel = EN3,       L=25 mm
Ultimate Stress:	ts =	sbearing =	sb =
Allowable Stress	(ts)all  =	(sbearing)all =	(st)all  =
Force (F)	F=(ts)all nsp b L	F=(sbearing)all nsp h L	F=( (st)all  nsp L b^2) / (3h)
Torque Capacity (Tc)	Tc =F rm /1000	Tc =F rm /1000	Tc =F rm /1000
Tc (N m)

C- Required: Splines length (L)

Given:	Steel = EN3, Tc=200 +(student No.- 1) x 3 =                     =       N m
Ultimate Stress:	ts	sbearing	sb
Allowable Stress	(ts)all  =	(sbearing)all =	(st)all  =
Spline force  (F)	F = Tc x 1000 / rm =
Splines Length (L)	L=F/(nsp b (ts)all )	L=F/(nsp h (sbearing)all)	L=3 F h/(nsp b^2(st)all)
L (mm)