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, 412 insertions, 0 deletions

diff --git a/Machine_Design_by_U.C._Jindal/Ch14.ipynb b/Machine_Design_by_U.C._Jindal/Ch14.ipynb
new file mode 100644
index 00000000..766ceb71
--- /dev/null
+++ b/Machine_Design_by_U.C._Jindal/Ch14.ipynb
@@ -0,0 +1,412 @@
+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:d7736c3b733f2dee976dda18085a361ed833c66d2ffff17be44c76a801411ca2"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Ch:14 Keys and couplings"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "exa 14-1 - Page 401"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "from math import sqrt, pi, atan, acos, cos\n",
+      "d=40#\n",
+      "r=d/2#\n",
+      "P=6*10**3#\n",
+      "N=350#\n",
+      "sigyt=380#\n",
+      "A=pi*12**2/2#\n",
+      "theta=pi-(2*atan(4/12))#\n",
+      "alpha=180-(theta*pi/180)#\n",
+      "l=2*12*cos(19.5*pi/180)#\n",
+      "A1=l*4/2#\n",
+      "Abcd=(A*141/180)-A1#\n",
+      "A2=A-Abcd#\n",
+      "A3=8*l#\n",
+      "w=2*pi*N/60#\n",
+      "T=P/w#\n",
+      "Pt=T*10**3/r#\n",
+      "sigb=Pt/A2#\n",
+      "#Let shear stress developed in key Tk\n",
+      "Tk=Pt/A3#\n",
+      "FOS1=sigyt/sigb#\n",
+      "FOS2=0.577*sigyt/Tk#\n",
+      "print \" FOS1 is %0.3f     \"%(FOS1)#\n",
+      "print \"\\n FOS2 is %0.2f     \"%(FOS2)#"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        " FOS1 is 4.376     \n",
+        "\n",
+        " FOS2 is 4.85     \n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "exa 14-2 - Page 401"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "n=12#\n",
+      "phi=360*pi/(180*12*2)#\n",
+      "R1=45/2#\n",
+      "R2=50/2#\n",
+      "l=60#\n",
+      "Rm=(R1+R2)/2#\n",
+      "p=6.5#\n",
+      "Pn=(R2-R1)*l*p#\n",
+      "T=Pn*Rm#\n",
+      "T=T*n#\n",
+      "N=400#\n",
+      "w=2*pi*N/60#\n",
+      "P=T*w#\n",
+      "A=(pi*R1*l)/n#\n",
+      "Ts=Pn/A#\n",
+      "Ah=(pi*R2*l)/n#\n",
+      "Th=Pn/Ah#\n",
+      "print \" Ts is %0.2f N/mm**2     \"%(Ts)#\n",
+      "print \"\\n Th is %0.2f N/mm**2    \"%(Th)#"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        " Ts is 3.39 N/mm**2     \n",
+        "\n",
+        " Th is 2.98 N/mm**2    \n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "exa 14-3 - Page 402"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "N=360#\n",
+      "w=2*pi*N/60#\n",
+      "sigyt=380#\n",
+      "r=25#\n",
+      "P=40*10**3#\n",
+      "FOS=3#\n",
+      "T=P/w#\n",
+      "Pt=T*10**3/(2*r)#\n",
+      "siga=380/3#\n",
+      "Ta=0.577*380/3#\n",
+      "l1=Pt/(sqrt(2)*12*Ta)#\n",
+      "l2=Pt*sqrt(2)/(siga*12)#\n",
+      "print \" l1 is %0.0f mm     \"%(l1)#\n",
+      "print \"\\n l2 is %0.2f mm     \"%(l2)#"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        " l1 is 17 mm     \n",
+        "\n",
+        " l2 is 19.85 mm     \n"
+       ]
+      }
+     ],
+     "prompt_number": 3
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "exa 14-4 - Page 403"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "N=300#\n",
+      "w=2*pi*N/60#\n",
+      "P=12*10**3#\n",
+      "Ks=1.25#\n",
+      "Pd=P*Ks#\n",
+      "T=Pd/w#\n",
+      "Tas=50#\n",
+      "d=16*T*10**3/(pi*Tas)#\n",
+      "d=d**(1/3)#\n",
+      "d=40#\n",
+      "Ts=10#\n",
+      "d1=(2*d)+13#\n",
+      "x=(d1**4-d**4)/d1#\n",
+      "#Let the shear stress in the key be Tsh\n",
+      "Tsh=T*10**3*16/(pi*x)#\n",
+      "l=3.5*d#\n",
+      "Ft=T*2*10**3/d#\n",
+      "l1=70#\n",
+      "sigak=50#\n",
+      "b=Ft/(l1*sigak)#\n",
+      "t=2*Ft/(100*l1)#\n",
+      "print \" d is %0.0f mm     \"%(d)#\n",
+      "print \"\\n Tsh is %0.2f MPa     \"%(Tsh)#\n",
+      "print \"\\n b is %0.0f mm     \"%(b)#\n",
+      "print \"\\n t is %0.0f mm     \"%(t)#"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        " d is 40 mm     \n",
+        "\n",
+        " Tsh is 3.13 MPa     \n",
+        "\n",
+        " b is 7 mm     \n",
+        "\n",
+        " t is 7 mm     \n"
+       ]
+      }
+     ],
+     "prompt_number": 4
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "exa 14-5 - Page 403"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "P=36*10**3#\n",
+      "N=200#\n",
+      "w=2*pi*N/60#\n",
+      "T=P/w#\n",
+      "Tas=45#\n",
+      "d=16*T*10**3/(pi*Tas)#\n",
+      "d=d**(1/3)#\n",
+      "d=60#\n",
+      "d1=(2*d)+13#\n",
+      "l=3.5*d#\n",
+      "Ftk=T*2/d#\n",
+      "lk=l/2#\n",
+      "Tak=40#\n",
+      "sigack=90#\n",
+      "b=Ftk*10**3/(lk*Tak)#\n",
+      "t=2*Ftk*10**3/(sigack*lk)#\n",
+      "n=4#\n",
+      "sigatb=60#\n",
+      "u=0.25#\n",
+      "dr=16*T*10**3/(u*pi**2*sigatb*n*d)#\n",
+      "dr=sqrt(dr)#\n",
+      "print \" d is %0.0f mm     \"%(d)#\n",
+      "print \"\\n b is %0.1f mm     \"%(b)#\n",
+      "print \"\\n t is %0.0f mm     \"%(t)#\n",
+      "print \"\\n dr is %0.3f mm     \"%(dr)#"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        " d is 60 mm     \n",
+        "\n",
+        " b is 13.6 mm     \n",
+        "\n",
+        " t is 12 mm     \n",
+        "\n",
+        " dr is 27.822 mm     \n"
+       ]
+      }
+     ],
+     "prompt_number": 5
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "exa 14-6 - Page 404"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "P=16*10**3#\n",
+      "N=1000#\n",
+      "w=2*pi*N/60#\n",
+      "T=P/w#\n",
+      "Ks=1.4#\n",
+      "Td=T*Ks#\n",
+      "Tas=40#\n",
+      "d=16*T*10**3/(pi*Tas)#\n",
+      "d=d**(1/3)#\n",
+      "d=32#\n",
+      "d1=2*d#\n",
+      "l=1.5*d#\n",
+      "ds=1.5*d#\n",
+      "Tak=40#\n",
+      "sigack=70#\n",
+      "Ftk=Td*2/d#\n",
+      "b=Ftk*10**3/(l*Tak)#\n",
+      "t=2*Ftk*10**3/(sigack*l)#\n",
+      "Taf=10#\n",
+      "tf=Td*10**3*2/(pi*Taf*d1**2)#\n",
+      "Ftb=Td*10**3/(1.5*d*4)#\n",
+      "Tab=40#\n",
+      "db=sqrt(Ftb*4/(Tab*pi))#\n",
+      "D=4*d#\n",
+      "trp=d/6#\n",
+      "Ftb1=Td*10**3/(45*4)#\n",
+      "db1=sqrt(Ftb1*4/(Tab*pi))#\n",
+      "print \" d is %0.0f mm     \"%(d)#\n",
+      "print \"\\n b is %0.0f mm     \"%(b)#\n",
+      "print \"\\n t is %0.0f mm     \"%(t)#\n",
+      "print \"\\n db is %0.2f mm     \"%(db)#\n",
+      "print \"\\n db1 is %0.2f mm     \"%(db1)#\n",
+      "  \n",
+      "  #The answer to Key thickness 't' is calculated incorrectly in the book."
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        " d is 32 mm     \n",
+        "\n",
+        " b is 7 mm     \n",
+        "\n",
+        " t is 8 mm     \n",
+        "\n",
+        " db is 5.96 mm     \n",
+        "\n",
+        " db1 is 6.15 mm     \n"
+       ]
+      }
+     ],
+     "prompt_number": 6
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "exa 14-7 - Page 404"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "P=30*10**3#\n",
+      "N=1440#\n",
+      "w=2*pi*N/60#\n",
+      "T=P/w#\n",
+      "d=36#\n",
+      "d1=30#\n",
+      "d2=2*d#\n",
+      "d3=d1*2#\n",
+      "l=1.5*d#\n",
+      "Dp=3.5*d#\n",
+      "n=6#\n",
+      "Ft=(2*T)/(Dp*n)#\n",
+      "p=0.5#\n",
+      "A=Ft/p#\n",
+      "Lf=d#\n",
+      "dp=A/Lf#\n",
+      "M=Ft*10**3*(5+(Lf/2))#\n",
+      "db=(32*M/(pi*40))**(1/3)#\n",
+      "db=15#\n",
+      "T=(4*526)/(pi*db**2)#\n",
+      "sigb=32*M/(pi*db**3)#\n",
+      "sigmax=(sigb/2)+sqrt(((sigb/2)**2)+(T**2))#\n",
+      "b=d/4#\n",
+      "t=6#\n",
+      "Lf=36#\n",
+      "La=10#\n",
+      "Do=126+30+(2*(5+1))+(2*6)#\n",
+      "print \" sigmax is %0.2f MPa     \"%(sigmax)#\n",
+      "print \"\\n b is %0.0f mm     \"%(b)#\n",
+      "print \"\\n t is %0.0f mm     \"%(t)#\n",
+      "print \"\\n Lf is %0.0f mm     \"%(Lf)#\n",
+      "print \"\\n Do is %0.0f mm     \"%(Do)#"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        " sigmax is 36.77 MPa     \n",
+        "\n",
+        " b is 9 mm     \n",
+        "\n",
+        " t is 6 mm     \n",
+        "\n",
+        " Lf is 36 mm     \n",
+        "\n",
+        " Do is 180 mm     \n"
+       ]
+      }
+     ],
+     "prompt_number": 7
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
\ No newline at end of file