diff options
author | kinitrupti | 2017-05-12 18:40:35 +0530 |
---|---|---|
committer | kinitrupti | 2017-05-12 18:40:35 +0530 |
commit | d36fc3b8f88cc3108ffff6151e376b619b9abb01 (patch) | |
tree | 9806b0d68a708d2cfc4efc8ae3751423c56b7721 /Machine_Design_by_U.C._Jindal/Ch28.ipynb | |
parent | 1b1bb67e9ea912be5c8591523c8b328766e3680f (diff) | |
download | Python-Textbook-Companions-d36fc3b8f88cc3108ffff6151e376b619b9abb01.tar.gz Python-Textbook-Companions-d36fc3b8f88cc3108ffff6151e376b619b9abb01.tar.bz2 Python-Textbook-Companions-d36fc3b8f88cc3108ffff6151e376b619b9abb01.zip |
Revised list of TBCs
Diffstat (limited to 'Machine_Design_by_U.C._Jindal/Ch28.ipynb')
-rwxr-xr-x | Machine_Design_by_U.C._Jindal/Ch28.ipynb | 343 |
1 files changed, 0 insertions, 343 deletions
diff --git a/Machine_Design_by_U.C._Jindal/Ch28.ipynb b/Machine_Design_by_U.C._Jindal/Ch28.ipynb deleted file mode 100755 index ec28770b..00000000 --- a/Machine_Design_by_U.C._Jindal/Ch28.ipynb +++ /dev/null @@ -1,343 +0,0 @@ -{ - "metadata": { - "name": "", - "signature": "sha256:4d8f50c55aa5f869a3b91c9992fbc1206b0fe54a3763477766a504a0fd20f355" - }, - "nbformat": 3, - "nbformat_minor": 0, - "worksheets": [ - { - "cells": [ - { - "cell_type": "heading", - "level": 1, - "metadata": {}, - "source": [ - "Ch:28 Worm and worm wheel set" - ] - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "exa 28-1 - Page 726" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "from __future__ import division\n", - "from math import sqrt, pi\n", - "Z1=1#\n", - "Z2=30#\n", - "q=10#\n", - "m=5#\n", - "d=q*m#\n", - "D=m*Z2#\n", - "#let the speed reduction ratio be G\n", - "G=Z2/Z1#\n", - "CD=(d+D)/2#\n", - "print \"G is %0.0f \"%(G)#\n", - "print \"\\nCD is %0.0f mm \"%(CD)#\n", - "print \"\\nd is %0.0f mm \"%(d)#\n", - "print \"\\nD is %0.0f mm \"%(D)#" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "G is 30 \n", - "\n", - "CD is 100 mm \n", - "\n", - "d is 50 mm \n", - "\n", - "D is 150 mm \n" - ] - } - ], - "prompt_number": 8 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "exa 28-2 - Page 726" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "from math import tan, atan, cos\n", - "Z1=1#\n", - "Z2=52#\n", - "q=10#\n", - "m=8#\n", - "i=Z2/Z1#\n", - "CD=((m*q)+(m*Z2))/2#\n", - "lamda=atan(Z1/q)#\n", - "d=q*m#\n", - "da=m*(q+2)#\n", - "df=m*(q+2-(4.4*cos(lamda)))#\n", - "pa=m*pi#\n", - "D=m*Z2#\n", - "Da=m*(Z2+(4*cos(lamda))-2)#\n", - "Df=m*(Z2-2-(0.4*cos(lamda)))#\n", - "print \"i is %0.0f \"%(i)#\n", - "print \"\\nCD is %0.0f mm \"%(CD)#\n", - "print \"\\npa is %0.2f mm \"%(pa)#\n", - "print \"\\nda is %0.0f mm \"%(da)#\n", - "print \"\\ndf is %0.3f mm \"%(df)#\n", - "print \"\\nDa is %0.3f mm \"%(Da)#\n", - "print \"\\nDf is %0.3f mm \"%(Df)#" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "i is 52 \n", - "\n", - "CD is 248 mm \n", - "\n", - "pa is 25.13 mm \n", - "\n", - "da is 96 mm \n", - "\n", - "df is 60.975 mm \n", - "\n", - "Da is 431.841 mm \n", - "\n", - "Df is 396.816 mm \n" - ] - } - ], - "prompt_number": 9 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "exa 28-3 - Page 727" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "from math import sin\n", - "Z1=2#\n", - "Z2=60#\n", - "q=10#\n", - "m=5#\n", - "P=6000#\n", - "N=1440#\n", - "u=0.08#\n", - "alpha=20*pi/180#\n", - "lamda=atan(Z1/q)#\n", - "d=m*q#\n", - "w=2*pi*N/60#\n", - "T=P/w#\n", - "Ptw=T*10**3/(d/2)#\n", - "a=cos(alpha)#\n", - "b=cos(lamda)#\n", - "x=sin(alpha)#\n", - "y=sin(lamda)#\n", - "Paw=Ptw*(((a*b)-(u*y))/((a*y)+(u*b)))#\n", - "Prw=Ptw*y/((a*y)+(u*b))#\n", - "#Paw=Ptw*((cos(alpha)*cos(lambda))-(u*sin(lambda)))/((cos(alpha)*sin(lambda))+(u*cos(lambda)))#\n", - "#Prw=Ptw*((sin(alpha))/((cos(alpha)*sin(lambda))+(u*cos(lambda))))#\n", - "print \"Ptw=Pag is %0.1f N \"%(Ptw)#\n", - "print \"\\nPaw=Ptg is %0.0f N \"%(Paw)#\n", - "print \"\\nPrw=Prg is %0.0f N \"%(Prw)#\n", - " \n", - "#The difference in the value is due to rounding-off the values." - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "Ptw=Pag is 1591.5 N \n", - "\n", - "Paw=Ptg is 5487 N \n", - "\n", - "Prw=Prg is 1188 N \n" - ] - } - ], - "prompt_number": 10 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "exa 28-4 - Page 728" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "Z1=2#\n", - "Z2=40#\n", - "q=8#\n", - "m=5#\n", - "d=q*m#\n", - "P=1.2#\n", - "lamda=atan(Z1/q)#\n", - "N=1000#\n", - "Vt=2*pi*N*20/(60*1000)#\n", - "Vs=Vt/cos(lamda)#\n", - "u=0.032#\n", - "alpha=20*pi/180#\n", - "x=cos(alpha)#\n", - "y=tan(lamda)#\n", - "z=(cos(lamda))/sin(lamda)#\n", - "n=(x-(u*y))/(x+(u*z))#\n", - "#Let power output be Po\n", - "Po=P*n#\n", - "#Let power lost in friction be Pf\n", - "Pf=P-Po#\n", - "print \"P is %0.1f kW \"%(P)#\n", - "print \"\\nPo is %0.3f kW \"%(Po)#\n", - "print \"\\nPf is %0.3f kW \"%(Pf)#\n", - " " - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "P is 1.2 kW \n", - "\n", - "Po is 1.047 kW \n", - "\n", - "Pf is 0.153 kW \n" - ] - } - ], - "prompt_number": 11 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "exa 28-5 - Page 729" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "Z1=2#\n", - "Z2=54#\n", - "q=10#\n", - "m=8#\n", - "P=4000#\n", - "A=1.8#\n", - "K=16#\n", - "N=1000#\n", - "u=0.028#\n", - "lamda=atan(Z1/q)#\n", - "alpha=20*pi/180#\n", - "d=m*q#\n", - "Vt=2*pi*N*d/(2*60*1000)#\n", - "Vs=Vt/cos(lamda)#\n", - "x=cos(alpha)#\n", - "y=tan(lamda)#\n", - "z=(cos(lamda))/sin(lamda)#\n", - "n=(x-(u*y))/(x+(u*z))#\n", - "delT=P*(1-n)/(K*A)#\n", - "print \"n is %0.3f \"%(n)#\n", - "print \"\\ndelT is %0.2f deg \"%(delT)#" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "n is 0.865 \n", - "\n", - "delT is 18.73 deg \n" - ] - } - ], - "prompt_number": 12 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "exa 28-6 - Page 729" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "Z1=1#\n", - "Z2=30#\n", - "q=10#\n", - "m=6#\n", - "#Let the ultimate strength of gear is sigut\n", - "#Let the allowable strenth of wheel is sigb\n", - "sigut=450#\n", - "sigb=84#\n", - "N=1200#\n", - "n=N/Z2#\n", - "alpha=20*pi/180#\n", - "d=m*q#\n", - "D=Z2*m#\n", - "b=3*d/4#\n", - "V=2*pi*n*D/(2*60*1000)#\n", - "Cv=6/(6+V)#\n", - "y=0.154-(0.912/Z2)#\n", - "Y=pi*y#\n", - "Sb=sigb*b*Cv*m*Y#\n", - "K=0.415#\n", - "Sw=b*D*K#\n", - "print \"Sb is %0.0f N \"%(Sb)#\n", - "print \"\\nSw is %0.0f N \"%(Sw)#\n", - "\n", - "#The difference in the value of Sb is due to rounding-off the values." - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "Sb is 8286 N \n", - "\n", - "Sw is 3362 N \n" - ] - } - ], - "prompt_number": 13 - } - ], - "metadata": {} - } - ] -}
\ No newline at end of file |