Added(A)/Deleted(D) following books

 A  Electronics_Engineering_by_P._Raja/chapter_1_2.ipynb
A  Electronics_Engineering_by_P._Raja/chapter_2_2.ipynb
A  Electronics_Engineering_by_P._Raja/chapter_3_2.ipynb
A  Electronics_Engineering_by_P._Raja/chapter_4_2.ipynb
A  Electronics_Engineering_by_P._Raja/chapter_5_2.ipynb
A  Electronics_Engineering_by_P._Raja/chapter_6_2.ipynb
A  Electronics_Engineering_by_P._Raja/chapter_7_2.ipynb
A  Electronics_Engineering_by_P._Raja/chapter_8_2.ipynb
A  Electronics_Engineering_by_P._Raja/chapter_9_2.ipynb
A  Electronics_Engineering_by_P._Raja/screenshots/7_2.png
A  Electronics_Engineering_by_P._Raja/screenshots/snap-3_2.png
A  Electronics_Engineering_by_P._Raja/screenshots/snap-6_2.png
A  Machine_Design_by_U.C._Jindal/Ch10.ipynb
A  Machine_Design_by_U.C._Jindal/Ch11.ipynb
A  Machine_Design_by_U.C._Jindal/Ch12.ipynb
A  Machine_Design_by_U.C._Jindal/Ch13.ipynb
A  Machine_Design_by_U.C._Jindal/Ch14.ipynb
A  Machine_Design_by_U.C._Jindal/Ch15.ipynb
A  Machine_Design_by_U.C._Jindal/Ch16.ipynb
A  Machine_Design_by_U.C._Jindal/Ch17.ipynb
A  Machine_Design_by_U.C._Jindal/Ch18.ipynb
A  Machine_Design_by_U.C._Jindal/Ch19.ipynb
A  Machine_Design_by_U.C._Jindal/Ch20.ipynb
A  Machine_Design_by_U.C._Jindal/Ch21.ipynb
A  Machine_Design_by_U.C._Jindal/Ch22.ipynb
A  Machine_Design_by_U.C._Jindal/Ch23.ipynb
A  Machine_Design_by_U.C._Jindal/Ch24.ipynb
A  Machine_Design_by_U.C._Jindal/Ch25.ipynb
A  Machine_Design_by_U.C._Jindal/Ch26.ipynb
A  Machine_Design_by_U.C._Jindal/Ch27.ipynb
A  Machine_Design_by_U.C._Jindal/Ch28.ipynb
A  Machine_Design_by_U.C._Jindal/Ch29.ipynb
A  Machine_Design_by_U.C._Jindal/Ch3.ipynb
A  Machine_Design_by_U.C._Jindal/Ch30.ipynb
A  Machine_Design_by_U.C._Jindal/Ch31.ipynb
A  Machine_Design_by_U.C._Jindal/Ch4.ipynb
A  Machine_Design_by_U.C._Jindal/Ch5.ipynb
A  Machine_Design_by_U.C._Jindal/Ch6.ipynb
A  Machine_Design_by_U.C._Jindal/Ch7.ipynb
A  Machine_Design_by_U.C._Jindal/Ch8.ipynb
A  Machine_Design_by_U.C._Jindal/Ch9.ipynb
A  Machine_Design_by_U.C._Jindal/screenshots/Chapter-3stressgraph.png
A  Machine_Design_by_U.C._Jindal/screenshots/Chapter-_8AdditionalLoad.png
A  Machine_Design_by_U.C._Jindal/screenshots/Chapter11_-_strengthofrevet.png
A  Solid_State_Devices_and_Circuits___by_V._Chaudhary_and_H._K._Maity/Chapter02_2.ipynb
A  Solid_State_Devices_and_Circuits___by_V._Chaudhary_and_H._K._Maity/Chapter03_2.ipynb
A  Solid_State_Devices_and_Circuits___by_V._Chaudhary_and_H._K._Maity/Chapter04_2.ipynb
A  Solid_State_Devices_and_Circuits___by_V._Chaudhary_and_H._K._Maity/Chapter05_2.ipynb
A  Solid_State_Devices_and_Circuits___by_V._Chaudhary_and_H._K._Maity/Chapter06_2.ipynb
A  Solid_State_Devices_and_Circuits___by_V._Chaudhary_and_H._K._Maity/Chapter07_2.ipynb
A  Solid_State_Devices_and_Circuits___by_V._Chaudhary_and_H._K._Maity/Chapter08_2.ipynb
A  Solid_State_Devices_and_Circuits___by_V._Chaudhary_and_H._K._Maity/Chapter09_2.ipynb
A  Solid_State_Devices_and_Circuits___by_V._Chaudhary_and_H._K._Maity/Chapter10_2.ipynb
A  Solid_State_Devices_and_Circuits___by_V._Chaudhary_and_H._K._Maity/Chapter11_2.ipynb
A  Solid_State_Devices_and_Circuits___by_V._Chaudhary_and_H._K._Maity/screenshots/Screenshot_3.1.py.PNG
A  Solid_State_Devices_and_Circuits___by_V._Chaudhary_and_H._K._Maity/screenshots/Screenshot_6.1.py.PNG
A  Solid_State_Devices_and_Circuits___by_V._Chaudhary_and_H._K._Maity/screenshots/Screenshot_6.2.py.PNG
A  sample_notebooks/PriyankaSaini/Chapter3.ipynb
A  sample_notebooks/ebbygeorge/Chapter01.ipynb

1 files changed, 343 insertions, 0 deletions

diff --git a/Machine_Design_by_U.C._Jindal/Ch28.ipynb b/Machine_Design_by_U.C._Jindal/Ch28.ipynb
new file mode 100644
index 00000000..ec28770b
--- /dev/null
+++ b/Machine_Design_by_U.C._Jindal/Ch28.ipynb
@@ -0,0 +1,343 @@
+{
+ "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