summaryrefslogtreecommitdiff
path: root/Machine_Design_by_U.C._Jindal/Ch19.ipynb
diff options
context:
space:
mode:
authorkinitrupti2017-05-12 18:40:35 +0530
committerkinitrupti2017-05-12 18:40:35 +0530
commitd36fc3b8f88cc3108ffff6151e376b619b9abb01 (patch)
tree9806b0d68a708d2cfc4efc8ae3751423c56b7721 /Machine_Design_by_U.C._Jindal/Ch19.ipynb
parent1b1bb67e9ea912be5c8591523c8b328766e3680f (diff)
downloadPython-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/Ch19.ipynb')
-rwxr-xr-xMachine_Design_by_U.C._Jindal/Ch19.ipynb382
1 files changed, 0 insertions, 382 deletions
diff --git a/Machine_Design_by_U.C._Jindal/Ch19.ipynb b/Machine_Design_by_U.C._Jindal/Ch19.ipynb
deleted file mode 100755
index ddcc05f3..00000000
--- a/Machine_Design_by_U.C._Jindal/Ch19.ipynb
+++ /dev/null
@@ -1,382 +0,0 @@
-{
- "metadata": {
- "name": "",
- "signature": "sha256:02d16750a95e9cb061b70a14a88598b538bc7e53305c21d4fa8042fd93a35729"
- },
- "nbformat": 3,
- "nbformat_minor": 0,
- "worksheets": [
- {
- "cells": [
- {
- "cell_type": "heading",
- "level": 1,
- "metadata": {},
- "source": [
- "Ch:19 Flywheel"
- ]
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "exa 19-1 - Page 530"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "from __future__ import division\n",
- "from math import sqrt, pi, cos, sin\n",
- "R=1200#\n",
- "b=300#\n",
- "t=150#\n",
- "N=500#\n",
- "m=7100*10**-9*b*t#\n",
- "Ar=b*t#\n",
- "Aa=Ar/4#\n",
- "C=(20280/t**2)+0.957+(Ar/Aa)#\n",
- "w=2*pi*N/60#\n",
- "V=w*R*10**-3#\n",
- "siga=2*10**3*m*V**2/(C*Aa*3)#\n",
- "theta=30*pi/180#\n",
- "alpha=30*pi/180#\n",
- "x1=10**3*m*(V**2)/(b*t)#\n",
- "y1=cos(theta)/(3*C*sin(alpha))#\n",
- "z1=2000*R*10**-3/(C*t)*((1/alpha)-(cos(theta)/sin(alpha)))#\n",
- "sigrr1=x1*(1-y1+z1)#\n",
- "theta=0*pi/180#\n",
- "x2=10**3*m*(V**2)/(b*t)#\n",
- "y2=cos(theta)/(3*C*sin(alpha))#\n",
- "z2=2000*R*10**-3/(C*t)*((1/alpha)-(cos(theta)/sin(alpha)))#\n",
- "sigrr2=x2*(1-y2-z2)#\n",
- "print \"axial stress is %0.2f MPa \"%(siga)#\n",
- "print \"\\ntensile stress for theta=30deg is %0.1f MPa \"%(sigrr1)#\n",
- "print \"\\ntensile stress for theta=0deg is %0.2f MPa \"%(sigrr2)#\n",
- "#The difference in the value of sigrr1 and sigrr2 is due to rounding-off of values."
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "axial stress is 12.76 MPa \n",
- "\n",
- "tensile stress for theta=30deg is 38.9 MPa \n",
- "\n",
- "tensile stress for theta=0deg is 31.74 MPa \n"
- ]
- }
- ],
- "prompt_number": 1
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "exa 19-2 - Page 530"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "from math import asin, cos\n",
- "N=350#\n",
- "theta1=asin(sqrt((3-0.6)/4))#\n",
- "theta1=theta1*180/pi#\n",
- "theta2=(180)-theta1#\n",
- "#Ti=16000+6000*sind(3*theta)#\n",
- "#To=16000+3600*sind(theta)#\n",
- "a=-3600*(cos(pi/180*theta2)-cos(pi/180*theta1))#\n",
- "b=2000*(cos(pi/180*3*theta2)-cos(pi/180*3*theta1))#\n",
- "c=a+b#\n",
- "delU=c#\n",
- "Ks=0.05#\n",
- "w=2*pi*N/60#\n",
- "I=delU/(Ks*w**2)#\n",
- "V=25#\n",
- "Ir=I*0.95#\n",
- "R=V/w#\n",
- "Mr=Ir/R**2#\n",
- "rho=7150#\n",
- "t=sqrt(Mr*(10**6)/(2*pi*R*2*rho))#\n",
- "b=2*t#\n",
- "print \"t is %0.2f mm \"%(t)#\n",
- "print \"\\nb is %0.2f mm \"%(b)#\n",
- "print \"\\nR is %0.3f m \"%(R)#"
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "t is 63.37 mm \n",
- "\n",
- "b is 126.74 mm \n",
- "\n",
- "R is 0.682 m \n"
- ]
- }
- ],
- "prompt_number": 2
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "exa 19-3 - Page 531"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "N=300#\n",
- "Ks=0.03#\n",
- "rho=7150#\n",
- "Kr=0.9#\n",
- "w=2*pi*N/60#\n",
- "WD=(300*2*pi)+(4*pi*200/4)#\n",
- "Tm=400#\n",
- "delU=pi*200/16#\n",
- "Ir=Kr*delU/(w**2*Ks)#\n",
- "R=Ir/(rho*1.5*0.1*0.1*2*pi)#\n",
- "R=R**(1/5)#\n",
- "t=0.1*R*1000#\n",
- "b=1.5*t#\n",
- "print \"t is %0.2f mm \"%(t)#\n",
- "print \"\\nb is %0.2f mm \"%(b)#\n",
- "print \"\\nR is %0.4f m \"%(R)#"
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "t is 28.16 mm \n",
- "\n",
- "b is 42.24 mm \n",
- "\n",
- "R is 0.2816 m \n"
- ]
- }
- ],
- "prompt_number": 3
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "exa 19-4 - Page 532"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "d=20#\n",
- "t=12#\n",
- "Tus=450#\n",
- "Pmax=pi*d*t*Tus#\n",
- "WD=Pmax*t/2*10**-3#\n",
- "n=0.95#\n",
- "Wi=WD/n#\n",
- "delU=5*Wi/6#\n",
- "N=300#\n",
- "w=2*pi*N/60#\n",
- "Ks=0.2#\n",
- "I=delU/(Ks*w**2)#\n",
- "Ir=I*0.9#\n",
- "R=0.5#\n",
- "m=Ir/R**2#\n",
- "rho=7150#\n",
- "t=sqrt(m*10**6/(rho*2*pi*R*2))#\n",
- "b=2*t#\n",
- "print \"t is %0.1f mm \"%(t)#\n",
- "print \"\\nb is %0.1f mm \"%(b)#\n",
- "print \"\\nR is %0.1f m \"%(R)#"
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "t is 26.9 mm \n",
- "\n",
- "b is 53.8 mm \n",
- "\n",
- "R is 0.5 m \n"
- ]
- }
- ],
- "prompt_number": 4
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "exa 19-5 - Page 533"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "U=(500*2*pi)+(3*pi*500/2)#\n",
- "Tm=U/(2*pi)#\n",
- "delU=2.25*pi*125/2#\n",
- "Ks=0.1#\n",
- "N=250#\n",
- "w=2*pi*N/60#\n",
- "I=delU/(Ks*w**2)#\n",
- "t=0.03#\n",
- "rho=7800#\n",
- "R=(I*2/(pi*rho*t))**(1/4)#\n",
- "V=R*w#\n",
- "v=0.3#\n",
- "sigmax=rho*V**2*(3+v)/8*10**-6#\n",
- "print \"R is %0.3f m \"%(R)#\n",
- "print \"\\nsigmax is %0.2f MPa \"%(sigmax)#\n",
- " "
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "R is 0.364 m \n",
- "\n",
- "sigmax is 0.29 MPa \n"
- ]
- }
- ],
- "prompt_number": 5
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "exa 19-6 - Page 534"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "N=1.5*8*60#\n",
- "l=200#\n",
- "t=1.5/2#\n",
- "W=350*10**3#\n",
- "WD=0.15*l*W*10**-6#\n",
- "n=0.9# #since frictional effect is 10%, effciency of system is 90%\n",
- "Wi=WD/n#\n",
- "L=400#\n",
- "delU=(L-(0.15*l))/(L)*10**3*Wi#\n",
- "Ks=0.12#\n",
- "w=2*pi*N/60#\n",
- "I=delU/(Ks*w**2)#\n",
- "Ir=I*0.9#\n",
- "R=0.7#\n",
- "m=Ir/R**2#\n",
- "rho=7150#\n",
- "t=sqrt(m*10**6/(rho*2*pi*R*1.5))#\n",
- "b=1.5*t#\n",
- "print \"t is %0.1f mm \"%(t)#\n",
- "print \"\\nb is %0.1f mm \"%(b)#"
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "t is 24.8 mm \n",
- "\n",
- "b is 37.2 mm \n"
- ]
- }
- ],
- "prompt_number": 6
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "exa 19-7 - Page 535"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "N=144#\n",
- "#Let n be no. of punches/ min\n",
- "n=8#\n",
- "#Let t be timr for 1 punch\n",
- "t=60/n#\n",
- "theta=N/60*2*pi*0.6#\n",
- "T=2.1#\n",
- "U=T*theta#\n",
- "#Let U1 be revolution of crankshaft in t sec\n",
- "U1=t*N/60*2*pi#\n",
- "delU=(U1-theta)/U1*U*10**3#\n",
- "w=2*pi*1440/60#\n",
- "Ks=0.1#\n",
- "I=delU/(Ks*w**2)#\n",
- "Ir=I*0.9#\n",
- "rho=7100#\n",
- "\n",
- "R=Ir/(rho*0.2*0.1*2*pi)#\n",
- "R=R**(1/5)#\n",
- "t=0.1*R*1000#\n",
- "b=0.2*R*10**3#\n",
- "t=40#\n",
- "b=80#\n",
- "R=400#\n",
- "# printing data in scilab o/p window\n",
- "print \"t is %0.0f mm \"%(t)#\n",
- "print \"\\nb is %0.0f mm \"%(b)#\n",
- "print \"\\nR is %0.0f mm \"%(R)#"
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "t is 40 mm \n",
- "\n",
- "b is 80 mm \n",
- "\n",
- "R is 400 mm \n"
- ]
- }
- ],
- "prompt_number": 7
- }
- ],
- "metadata": {}
- }
- ]
-} \ No newline at end of file