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, 303 insertions, 0 deletions

diff --git a/Machine_Design_by_U.C._Jindal/Ch7.ipynb b/Machine_Design_by_U.C._Jindal/Ch7.ipynb
new file mode 100644
index 00000000..3a83b942
--- /dev/null
+++ b/Machine_Design_by_U.C._Jindal/Ch7.ipynb
@@ -0,0 +1,303 @@
+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:f63edcd22a3bf57c69f1f76aca0a01ff1dd288f9c7a8d1b01585ac7b29af9fbe"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Ch:7 Struts and Columns"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "exa 7-1 - Page 192"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "from math import pi\n",
+      "sigc=550#\n",
+      "FOS=4#\n",
+      "sigw=sigc/FOS#\n",
+      "l=4000#\n",
+      "le=l/2#\n",
+      "A=pi*(1-0.7**2)/4#\n",
+      "K=(1+0.7**2)/16#\n",
+      "Pr=800*10**3#\n",
+      "a=1/1600#\n",
+      "D=130# #Rounding off to nearest whole number\n",
+      "d=D*0.7#\n",
+      "print \"D is %0.1f mm     \"%(D)#\n",
+      "print \"\\nd is %0.1f mm     \"%(d)#"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "D is 130.0 mm     \n",
+        "\n",
+        "d is 91.0 mm     \n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "exa 7-2 - Page 192"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "from math import sqrt\n",
+      "l=500#\n",
+      "E=70*10**3#\n",
+      "P=20*10**3#\n",
+      "FOS=2#\n",
+      "d=P*2*12*4*l**2/((pi)**2*E)#\n",
+      "d=(sqrt(8)*d)**0.25#\n",
+      "b=d/sqrt(8)#\n",
+      "print \"d is %0.2f mm     \"%(d)#\n",
+      "print \"\\nb is %0.2f mm     \"%(b)#"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "d is 37.44 mm     \n",
+        "\n",
+        "b is 13.24 mm     \n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "exa 7-3 - Page193"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "Ixx=(2*1696.6)+115.4#\n",
+      "Iyy=1696.6+(2*115.4)+(2*25.27*10.27**2)#\n",
+      "A=3*25.27#\n",
+      "Kmin=sqrt(Ixx/75.81)#\n",
+      "L=600#\n",
+      "k=L/Kmin#\n",
+      "sigc=110#\n",
+      "c=1/200#\n",
+      "sigw=sigc*(1-(c*k))#\n",
+      "Pw=sigw*A#\n",
+      "a=1/7500#\n",
+      "sigc1=320#\n",
+      "Pr=(sigc1*A)/(1+(a*(L/Kmin)**2))#\n",
+      "FOS=Pr/Pw#\n",
+      "print \"FOS is %0.2f      \"%(FOS)#"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "FOS is 2.91      \n"
+       ]
+      }
+     ],
+     "prompt_number": 3
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "exa 7-4 - Page 194"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "Iyy=193.4+(2*1.2*1.5**3/12)#\n",
+      "E=200*10**3#\n",
+      "l=500#\n",
+      "Pe=(pi**2)*E*Iyy*10**5/(l**2)#\n",
+      "A=35.53+(2*1.2*15)#\n",
+      "sige=Pe/7530#\n",
+      "k=sqrt(Iyy/A)#\n",
+      "xc=75#\n",
+      "sig=80#\n",
+      "sigo=20.875#\n",
+      "A=A*100#\n",
+      "P=sigo*A#\n",
+      "P=P*10**-3#\n",
+      "print \"P is %0.1f kN     \"%(P)#\n",
+      "  \n",
+      "  #The difference in the value of P is due to rounding-off the digits."
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "P is 149.3 kN     \n"
+       ]
+      }
+     ],
+     "prompt_number": 4
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "exa 7-5 - Page 195"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "sigc=330#\n",
+      "a=1/7500#\n",
+      "t=4#\n",
+      "A=14.5*t**2#\n",
+      "l=300#\n",
+      "Kx=sqrt(1.4626*t**2)#\n",
+      "Pr=sigc*A/(1+(a*(l/Kx)**2))#\n",
+      "FOS=2#\n",
+      "P=Pr/FOS*10**-3#\n",
+      "print \"P is %0.4f KN     \"%(P)#"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "P is 38.2800 KN     \n"
+       ]
+      }
+     ],
+     "prompt_number": 5
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "exa 7-6 - Page 195"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "P=1500#\n",
+      "FOS=2#\n",
+      "Pd=FOS*P#\n",
+      "l=280#\n",
+      "E=207*10**3#\n",
+      "I=Pd*l**2/(pi**2*E)#\n",
+      "D=(64*I/(pi*(1-0.8**4)))**(1/4)#\n",
+      "D=8#\n",
+      "d=6.4#\n",
+      "print \"D is %0.1f mm     \"%(D)#\n",
+      "print \"\\nd is %0.1f mm     \"%(d)#"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "D is 8.0 mm     \n",
+        "\n",
+        "d is 6.4 mm     \n"
+       ]
+      }
+     ],
+     "prompt_number": 6
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "exa 7-7 - Page 196"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "D=500#\n",
+      "p=0.3#\n",
+      "E=208*10**3#\n",
+      "sigc=320#\n",
+      "a=1/7500#\n",
+      "l=2000#\n",
+      "le=l/2#\n",
+      "W=pi*D**2*p/4#\n",
+      "FOS=4#\n",
+      "Wd=W*FOS#\n",
+      "I=Wd*l**2/(pi**2*E)#\n",
+      "d=(64*I/pi)**(1/4)#\n",
+      "A=pi*d**2/4#\n",
+      "k=d/4#\n",
+      "d=45# #Rounding off to nearest whole number\n",
+      "print \"d is %0.1f mm     \"%(d)#"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "d is 45.0 mm     \n"
+       ]
+      }
+     ],
+     "prompt_number": 7
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
\ No newline at end of file