From 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 Mon Sep 17 00:00:00 2001 From: prashantsinalkar Date: Tue, 10 Oct 2017 12:27:19 +0530 Subject: initial commit / add all books --- .../17_cone_clutch_under_uniform_pressure.txt | 3 ++ .../P17_cone_clutch_under_uniform_pressure.sce | 57 ++++++++++++++++++++++ 2 files changed, 60 insertions(+) create mode 100644 698/CH14/EX14.17/17_cone_clutch_under_uniform_pressure.txt create mode 100644 698/CH14/EX14.17/P17_cone_clutch_under_uniform_pressure.sce (limited to '698/CH14/EX14.17') diff --git a/698/CH14/EX14.17/17_cone_clutch_under_uniform_pressure.txt b/698/CH14/EX14.17/17_cone_clutch_under_uniform_pressure.txt new file mode 100644 index 000000000..f534b086d --- /dev/null +++ b/698/CH14/EX14.17/17_cone_clutch_under_uniform_pressure.txt @@ -0,0 +1,3 @@ +(a)Axial force F required to transmit the torque is 563.04 N +(b)Axial force required to engage the clutch, enagagement taking place when clutch is not rotating, is 1591.26 N +(c)Average normal pressure when maximum torque is being transmitted is 74.06 kN/m^2 diff --git a/698/CH14/EX14.17/P17_cone_clutch_under_uniform_pressure.sce b/698/CH14/EX14.17/P17_cone_clutch_under_uniform_pressure.sce new file mode 100644 index 000000000..eff120d63 --- /dev/null +++ b/698/CH14/EX14.17/P17_cone_clutch_under_uniform_pressure.sce @@ -0,0 +1,57 @@ +clc +//Exercise 14.17 +//same clutch as previous problem, assuming uniform pressure theory + +//------------------------------------------------------------------------------ +//Given Data: +//Torque +T=200//Nm +//Speed +N=1250//rev/min +//Large diameter +Do=0.35//m +Ro=Do/2 +//Face width +b=0.065//m +//coefficient of friction +f=0.2 +//cone pitch angle +alpha=6.25//degrees +//converting alpha in degrees to radians +alpha=(alpha*%pi)/180 + +//------------------------------------------------------------------------------ +//mean radius +Rm=Ro-((1/2)*b*sin (alpha)) +Rm=floor(Rm*(10^3)) +Rm=Rm*(10^-3) +//Rm=(Ro+Ri)/2 +//smaller radius +Ri=(2*Rm)-Ro +Ri=floor(Ri*(10^3)) +Ri=Ri*(10^-3) + +//Axial force reqiured to transmit the torque +//t=F*f*((Ro^3-Ri^3)/(3*Rm*b*(sin (alpha))^2)) +F=T/(f*((Ro^3-Ri^3)/(3*Rm*b*(sin (alpha))^2))) + +//Axial force required to engage the clutch when clutch is not rotating +//Fe=Fn((sin alpha)+(f*cos alpha)) +Fn=F/sin(alpha) +Fe=Fn*((sin (alpha))+(f*cos (alpha))) + +//average normal pressure when maximum torque is being transmitted +//Fn=p*2*%pi*Rm*b +p=Fn/(2*%pi*Rm*b) + +//------------------------------------------------------------------------------ +//Printing file to .txt +res17=mopen(TMPDIR+'17_cone_clutch_under_uniform_pressure.txt','wt') +mfprintf(res17,"(a)Axial force F required to transmit the torque is %0.2f N\n",F) +mfprintf(res17,"(b)Axial force required to engage the clutch, enagagement taking place when clutch is not rotating, is %0.2f N\n",Fe) +mfprintf(res17,"(c)Average normal pressure when maximum torque is being transmitted is %0.2f kN/m^2\n",p*(10^-3)) +mclose(res17) +editor(TMPDIR+'17_cone_clutch_under_uniform_pressure.txt') + +//------------------------------------------------------------------------------ +//------------------------------End of program---------------------------------- \ No newline at end of file -- cgit