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, 173 insertions, 0 deletions

diff --git a/Machine_Design_by_U.C._Jindal/Ch31.ipynb b/Machine_Design_by_U.C._Jindal/Ch31.ipynb
new file mode 100644
index 00000000..890e011d
--- /dev/null
+++ b/Machine_Design_by_U.C._Jindal/Ch31.ipynb
@@ -0,0 +1,173 @@
+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:6ec60a366eb75f6b61dc10de0b002b97629539c44f0f706f948844442706e9bd"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Ch:31 Seals packing and gaskets"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "exa 31-1 - Page 816"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "from __future__ import division\n",
+      "from math import sqrt, pi, log\n",
+      "d=18#\n",
+      "lg=25+25#\n",
+      "Eb=210*10**3#\n",
+      "Ecl=90*10**3#\n",
+      "A=pi*d**2/4#\n",
+      "kb=A*Eb/lg#\n",
+      "x=(5*(lg+(0.5*d))/(lg+(2.5*d)))#\n",
+      "km=pi*Ecl*d/(2*log(x))#\n",
+      "C=kb/(kb+km)#\n",
+      "sigp=600#\n",
+      "At=192#\n",
+      "Pi=0.75*sigp*At#\n",
+      "F=200#\n",
+      "C=0.322#\n",
+      "Pb=F*C*10**3#\n",
+      "FOS=2#\n",
+      "W=At*sigp#\n",
+      "N=Pb*FOS/(W-Pi)#\n",
+      "print \"N is %0.2f      \"%(N)#"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "N is 4.47      \n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "exa 31-2 - Page 816"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "d=16#\n",
+      "D=1.5*d#\n",
+      "t=20#\n",
+      "tg=4#\n",
+      "#Let Gasket diameter in compression zone be d1\n",
+      "d1=D+(2*t)+tg#\n",
+      "lg=40#\n",
+      "E=207*10**3#\n",
+      "kb=pi*d**2*E/(lg*4)#\n",
+      "Ecl=90*10**3#\n",
+      "x=(5*(lg+(0.5*d))/(lg+(2.5*d)))#\n",
+      "kp=pi*Ecl*d/(2*log(x))#\n",
+      "Ag=pi*(d1**2-d**2)/4#\n",
+      "Eg=480#\n",
+      "kg=Ag*Eg/tg#\n",
+      "km=kg*kp/(kg+kp)#\n",
+      "C=kb/(kb+km)#\n",
+      "At=157#\n",
+      "sigp=600#\n",
+      "Pi=0.75*At*sigp/2#\n",
+      "FOS=2#\n",
+      "Pf=At*sigp/FOS#\n",
+      "W=Pf-Pi#\n",
+      "P=W/C#\n",
+      "N=5#\n",
+      "F=P*N#\n",
+      "p=F*4/(pi*120**2)#\n",
+      "print \"p is %0.3f N/mm**2     \"%(p)#"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "p is 6.922 N/mm**2     \n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "exa 31-3 - Page 817"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "sigp=600#\n",
+      "FOS=3#\n",
+      "siga=sigp/FOS#\n",
+      "d=16#\n",
+      "D=1.5*d+60#\n",
+      "#Let Gasket diameter in compression zone be d1\n",
+      "d1=(300-160)/2#\n",
+      "#Let compressive stress in gasket for leak proof joint be sigl\n",
+      "sigl=12#\n",
+      "from numpy import mat\n",
+      "At=mat([[1, 157],[2 ,192], [3, 245]])\n",
+      "d=mat([[1 ,16],[2 ,18],[3, 20]])\n",
+      "\n",
+      "n=3#\n",
+      "Pi = range(0,n)\n",
+      "Pc = range(0,n)\n",
+      "for i in range(0,n):\n",
+      "    Pi[i]=At[i,1]*d[i,1]\n",
+      "    Pc[i]=3*pi*(d1**2-d[i,1]**2)\n",
+      "    if (Pi[i]>=Pc[i]):\n",
+      "        print \"The Design is safe\"\n",
+      "\n",
+      "print \"d is %0.0f mm     \"%(d[i,1])#"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "d is 20 mm     \n"
+       ]
+      }
+     ],
+     "prompt_number": 3
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
\ No newline at end of file