add books

1 files changed, 367 insertions, 0 deletions

diff --git a/sample_notebooks/PreetiRani/ch6.ipynb b/sample_notebooks/PreetiRani/ch6.ipynb
new file mode 100644
index 00000000..c3a88008
--- /dev/null
+++ b/sample_notebooks/PreetiRani/ch6.ipynb
@@ -0,0 +1,367 @@
+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:2286c67a37dc36a4b2463b6ff90eb31f4de0251dedc09d4493cdbe015dfacf59"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Chapter06 : Levers"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "sum 6-1 : page 296"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "from math import sqrt, pi\n",
+      "Del=10 \n",
+      "k=500 \n",
+      "W=k*Del \n",
+      "#Let load arm be l1\n",
+      "l1=200 \n",
+      "#Let effort arm be l2\n",
+      "l2=500 \n",
+      "P=W*l1/l2 \n",
+      "Ro=sqrt(W**2+P**2) \n",
+      "Ta=40 \n",
+      "d=sqrt(Ro*4/(2*pi*Ta)) \n",
+      "d=10 \n",
+      "pb=10 \n",
+      "d1=sqrt(Ro/(pb*1.5)) \n",
+      "d1=20 \n",
+      "l=1.5*d \n",
+      "t=10 \n",
+      "T=Ro*4/(2*pi*d1**2) \n",
+      "M=(Ro/2*(l/2+t/3))-(Ro/2*l/4) \n",
+      "sigb=32*M/(pi*d1**3) \n",
+      "sigmax=(sigb/2)+sqrt((sigb/2)**2+T**2) \n",
+      "P=Ro/(l*d1) \n",
+      "D=2*d1 \n",
+      "\n",
+      "# Output\n",
+      "print \"d1 is %0.1f mm     \"%d1 \n",
+      "print \"D is %0.1f mm     \"%D"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "d1 is 20.0 mm     \n",
+        "D is 40.0 mm     \n"
+       ]
+      }
+     ],
+     "prompt_number": 10
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "sum 6-2 : page 297"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "from math import sqrt, pi\n",
+      "d1=80 \n",
+      "p=0.981 \n",
+      "Ta=40 \n",
+      "siga=80 \n",
+      "pa=15 \n",
+      "W=pi*(d1**2)*p/4 \n",
+      "P=W/8 \n",
+      "Ws=W-P \n",
+      "d=sqrt(W*4/(pi*2*Ta)) \n",
+      "l=1.5*d \n",
+      "D=2*d \n",
+      "T=W/(2*pi*pa**2/4) \n",
+      "M1=P*(700-87.5-(D/2)) \n",
+      "h=50 \n",
+      "b=h/4 \n",
+      "Z=b*h**2/6 \n",
+      "sigb=M1/Z \n",
+      "pmax=80 \n",
+      "T=2465.6/h**2 \n",
+      "pmax=(sigb/2)+sqrt((sigb/2)**2+T**2) \n",
+      "\n",
+      "# Output\n",
+      "print \"h is %0.2f mm     \"%h  \n",
+      "print \"pmax is %0.2f MPa     \"%pmax\n",
+      "  \n",
+      "#The difference in the value of pmax is due to rounding-off the digits."
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "h is 50.00 mm     \n",
+        "pmax is 74.43 MPa     \n"
+       ]
+      }
+     ],
+     "prompt_number": 11
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "sum 6-3 : page 303"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "from math import sqrt, pi\n",
+      "P=((4*360)+(2*360))/900 \n",
+      "Fv=4-2 \n",
+      "Fh=P \n",
+      "Fr=sqrt(Fv**2+Fh**2) \n",
+      "P1=4*0.36/0.9 \n",
+      "Rf=sqrt(4**2+1.6**2) \n",
+      "d=sqrt(Rf*10**3/(15*1.25)) \n",
+      "d=16 \n",
+      "l=1.25*d \n",
+      "T=Rf*10**3*4/(2*pi*d**2) \n",
+      "D=2*d \n",
+      "M1=Rf*10**3*(360-(D/2)) \n",
+      "pa=15 \n",
+      "h=80 \n",
+      "b=h/4 \n",
+      "Z=b*h**2/6 \n",
+      "sigb=M1/Z \n",
+      "T=4310/(b*h) \n",
+      "pmax=(sigb/2)+sqrt((sigb/2)**2+T**2) \n",
+      "\n",
+      "# Output\n",
+      "print \"P is %0.1f KN     \"%P \n",
+      "print \"pmax is %0.2f MPa     \"%pmax"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "P is 2.0 KN     \n",
+        "pmax is 69.53 MPa     \n"
+       ]
+      }
+     ],
+     "prompt_number": 12
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "sum 6-4 : page 304"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "from math import sqrt, pi\n",
+      "l=360 \n",
+      "P=400 \n",
+      "Mh=2*P*l/3 \n",
+      "sigb=50 \n",
+      "l1=60 \n",
+      "d=(Mh*32/(pi*l1))**(1/3) \n",
+      "d=30 \n",
+      "L=420 \n",
+      "siga=60 \n",
+      "H=20 \n",
+      "B=H/3 \n",
+      "Mx=P*(L-H/2) \n",
+      "Tx=2*P*l/3 \n",
+      "sigb1=Mx*18/H**3 \n",
+      "Td=P/(B*H) \n",
+      "Tr=17.17*Tx/H**4 \n",
+      "T=Tr+Td \n",
+      "sigmax=(sigb1/2)+sqrt((sigb1/2)**2+T**2) \n",
+      "Tmax=sqrt((sigb1/2)**2+T**2) \n",
+      "T=P*L \n",
+      "M=P*(l1+(2/3*l)) \n",
+      "Te=sqrt(T**2+M**2) \n",
+      "Ta=40 \n",
+      "D=(Te*16/(pi*Ta))**(1/3) \n",
+      "D=round(D)  #Rounding off \n",
+      "# Output\n",
+      "print \"d is %0.1f mm     \"%d  \n",
+      "print \"D is %0.1f mm     \"%D"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "d is 30.0 mm     \n",
+        "D is 1.0 mm     \n"
+       ]
+      }
+     ],
+     "prompt_number": 13
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "sum 6-5 : page 306"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "from math import sqrt, pi\n",
+      "l2=300 \n",
+      "l=450 \n",
+      "P=400 \n",
+      "Mx=2*P*l2/3 \n",
+      "siga=80 \n",
+      "dh=(Mx*32/(pi*siga))**(1/3) \n",
+      "dh=22 \n",
+      "L=(2*l2/3)+l \n",
+      "T=P*L \n",
+      "Ta=40 \n",
+      "d=(T*16/(pi*Ta))**(1/3) \n",
+      "d=35 \n",
+      "d1=1.6*d \n",
+      "Th=T*16*d1/(pi*(d1**4-d**4)) \n",
+      "l1=1.5*d \n",
+      "My=P*(L-(d1/2)) \n",
+      "B=dh \n",
+      "H=sqrt(3.66*75) \n",
+      "H=30 \n",
+      "Mz=P*l1/2 \n",
+      "Te=sqrt(T**2+Mz**2) \n",
+      "d2=(Te*16/(pi*Ta))**(1/3) \n",
+      "d2=32 \n",
+      "b=d/4 \n",
+      "b=round(b)\n",
+      "t=d/6 \n",
+      "t=round(t)\n",
+      "# Output\n",
+      "print \"d is %0.1f  mm     \"%d \n",
+      "print \"dh is %0.1f mm     \"%dh  \n",
+      "print \"d1 is %0.1f mm     \"%d1  \n",
+      "print \"l1 is %0.1f mm     \"%l1  \n",
+      "print \"d2 is %0.1f mm     \"%d2  \n",
+      "print \"b  is %0.1f  mm     \"%b  \n",
+      "print \"t  is %0.1f  mm     \"%t "
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "d is 35.0  mm     \n",
+        "dh is 22.0 mm     \n",
+        "d1 is 56.0 mm     \n",
+        "l1 is 52.5 mm     \n",
+        "d2 is 32.0 mm     \n",
+        "b  is 8.0  mm     \n",
+        "t  is 5.0  mm     \n"
+       ]
+      }
+     ],
+     "prompt_number": 14
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "sum 6-6 : page 307"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "from math import sqrt, pi\n",
+      "L=450 \n",
+      "P=700 \n",
+      "T=P*L \n",
+      "Ta=50 \n",
+      "d=(T*16/(pi*Ta))**(1/3) \n",
+      "d=32 \n",
+      "d1=1.6*d \n",
+      "d1=52  #Rounding off to nearest whole number\n",
+      "l1=1.25*d \n",
+      "My=P*(L-d1/2) \n",
+      "sigb=65 \n",
+      "H=(My*18/sigb)**(1/3) \n",
+      "H=45 \n",
+      "B=H/3 \n",
+      "T1=P/(B*H) \n",
+      "sigmax=(sigb/2)+sqrt((sigb/2)**2+T**2) \n",
+      "Mx=P*l1/2 \n",
+      "Te=sqrt((T)**2+(Mx**2)) \n",
+      "d2=(Te*16/(pi*Ta))**(1/3) \n",
+      "d2=d2+6 \n",
+      "d2=round(d2)\n",
+      "# utput\n",
+      "print \"d is %0.1f  mm     \"%d \n",
+      "print \"d1 is %0.1f mm     \"%d1  \n",
+      "print \"l1 is %0.1f mm     \"%l1  \n",
+      "print \"B  is %0.1f mm     \"%B \n",
+      "print \"H  is %0.1f mm     \"%H  \n",
+      "print \"d2 is %0.1f mm     \"%d2  "
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "d is 32.0  mm     \n",
+        "d1 is 52.0 mm     \n",
+        "l1 is 40.0 mm     \n",
+        "B  is 15.0 mm     \n",
+        "H  is 45.0 mm     \n",
+        "d2 is 7.0 mm     \n"
+       ]
+      }
+     ],
+     "prompt_number": 15
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
\ No newline at end of file