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Diffstat (limited to 'backup/Machine_Design_by_U.C._Jindal_version_backup/Ch10.ipynb')
| -rwxr-xr-x | backup/Machine_Design_by_U.C._Jindal_version_backup/Ch10.ipynb | 258 |
1 files changed, 258 insertions, 0 deletions
diff --git a/backup/Machine_Design_by_U.C._Jindal_version_backup/Ch10.ipynb b/backup/Machine_Design_by_U.C._Jindal_version_backup/Ch10.ipynb new file mode 100755 index 00000000..1d59c739 --- /dev/null +++ b/backup/Machine_Design_by_U.C._Jindal_version_backup/Ch10.ipynb @@ -0,0 +1,258 @@ +{ + "metadata": { + "name": "", + "signature": "sha256:07d8c9662c407447473b639e8ef72a48c0966dd22d390e447be5846d8f6256c8" + }, + "nbformat": 3, + "nbformat_minor": 0, + "worksheets": [ + { + "cells": [ + { + "cell_type": "heading", + "level": 1, + "metadata": {}, + "source": [ + "Ch:10 Pipes and pipe joints" + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "exa 10-1 - Page 295" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from math import sqrt\n", + "sigta=140/2#\n", + "nt=0.75#\n", + "#Let the flow rate be Q\n", + "Q=0.25#\n", + "v=1.2#\n", + "D=1.13*sqrt(Q/v)#\n", + "D=520#\n", + "p=0.7#\n", + "C=9#\n", + "t=(p*D)/(2*sigta*nt)+C#\n", + "print \" t is %0.1f mm \"%(t)#" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " t is 12.5 mm \n" + ] + } + ], + "prompt_number": 1 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "exa 10-2 - Page 295" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from math import pi\n", + "p=3*8#\n", + "sigta=60#\n", + "d=150#\n", + "t=d/2*sqrt(((sigta+p)/(sigta-p))-1)#\n", + "t=75*sqrt((84/36)-1)#\n", + "t=40#\n", + "do=d+(2*t)#\n", + "D=d+(2*t)+20#\n", + "w=10#\n", + "Ds=d+(2*w)#\n", + "P=pi*(Ds**2)*8/4#\n", + "sigp=310#\n", + "FOS=4#\n", + "sigb=77.5#\n", + "At=P/(sigb*2)#\n", + "At=1300#\n", + "D=250#\n", + "db=45#\n", + "b=D#\n", + "a=1.8*b#\n", + "CD=D+(2*db*1.2)#\n", + "sigp=310#\n", + "Pr=0.75*sigp*At#\n", + "Pr=Pr*10**-3#\n", + "t=40#\n", + "D1=d+(2*t)+20#\n", + "D2=D1+(4.6*31)#\n", + "CD=D2-((3*t)+20)#\n", + "print \" Pr is %0.2f kN \"%(Pr)#\n", + "print \"\\n D1 is %0.0f mm \"%(D1)#\n", + "print \"\\n D2 is %0.1f mm \"%(D2)#\n", + "print \"\\n CD is %0.1f mm \"%(CD)#" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " Pr is 302.25 kN \n", + "\n", + " D1 is 250 mm \n", + "\n", + " D2 is 392.6 mm \n", + "\n", + " CD is 252.6 mm \n" + ] + } + ], + "prompt_number": 2 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "exa 10-3 - Page 296" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "p=14#\n", + "d=50#\n", + "sigyp=270#\n", + "FOS=3#\n", + "sigta=sigyp/FOS#\n", + "pt=2*p#\n", + "t=d/2*sqrt(((sigta+pt)/(sigta-pt))-1)#\n", + "t=10#\n", + "D1=d+(2*t)#\n", + "Ds=D1+20#\n", + "P=pi*(Ds**2)*p/4#\n", + "sigba=380/4#\n", + "At=P/(4*sigba)#\n", + "At=245#\n", + "db=20#\n", + "Dd=70+(2*20)+5#\n", + "R=db+2.5#\n", + "B=(Dd/sqrt(2))+(2*(db+2.5))#\n", + "B=127#\n", + "Y=Dd/(2*sqrt(2))#\n", + "Rm=34.12#\n", + "M=(P*Y/2)+(P*Rm/pi)#\n", + "sigfa=250/5#\n", + "b=127/70#\n", + "Z=b/6#\n", + "tf=sqrt(M/(sigfa*Z))#\n", + "tf=44#\n", + "print \" d is %0.0f mm \"%(d)#\n", + "print \"\\n t is %0.0f mm \"%(t)#\n", + "print \"\\n B is %0.0f mm \"%(B)#\n", + "print \"\\n R is %0.1f mm \"%(R)#\n", + "print \"\\n Y is %0.2f mm \"%(Y)#\n", + "print \"\\n tf is %0.0f mm \"%(tf)#" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " d is 50 mm \n", + "\n", + " t is 10 mm \n", + "\n", + " B is 127 mm \n", + "\n", + " R is 22.5 mm \n", + "\n", + " Y is 40.66 mm \n", + "\n", + " tf is 44 mm \n" + ] + } + ], + "prompt_number": 3 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "exa 10-4 - Page 297" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from math import tan\n", + "p=1.25#\n", + "D=200#\n", + "nt=0.75#\n", + "C=9#\n", + "sigta=20#\n", + "t=(p*D)/(2*sigta*nt)+C#\n", + "t=18#\n", + "D1=D+(2*t)#\n", + "dr=D1+10#\n", + "sigp=310#\n", + "sigba=sigp/4#\n", + "db=16#\n", + "Db=dr+32+5#\n", + "Do=Db+(2*db)#\n", + "P=pi*(251+db)**2*1.25/4#\n", + "n=6#\n", + "Y=(Db-dr)/2#\n", + "M=P/n*Y#\n", + "Z=dr*tan(30*pi/180)/6#\n", + "tf=sqrt(M/(sigta*Z))#\n", + "tf=22#\n", + "Deff=dr+db+5#\n", + "print \" D is %0.0f mm \"%(D)#\n", + "print \"\\n t is %0.0f mm \"%(t)#\n", + "print \"\\n Y is %0.1f mm \"%(Y)#\n", + "print \"\\n tf is %0.0f mm \"%(tf)#\n", + "print \"\\n Deff is %0.0f mm \"%(Deff)#" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " D is 200 mm \n", + "\n", + " t is 18 mm \n", + "\n", + " Y is 18.5 mm \n", + "\n", + " tf is 22 mm \n", + "\n", + " Deff is 267 mm \n" + ] + } + ], + "prompt_number": 4 + } + ], + "metadata": {} + } + ] +}
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