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--- a/Machine_Design_by_U.C._Jindal/Ch24_1.ipynb
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@@ -1,195 +0,0 @@
-{
- "cells": [
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "# Ch:24 Rope drive"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "## exa 24-1 - Page 635"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 1,
-   "metadata": {
-    "collapsed": false
-   },
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "n is 13    \n"
-     ]
-    }
-   ],
-   "source": [
-    "from __future__ import division\n",
-    "from math import sqrt, pi, exp, sin, asin\n",
-    "P=150000#\n",
-    "m=0.4#\n",
-    "D=1.8#\n",
-    "d=0.6#\n",
-    "C=4.2#\n",
-    "V=15#\n",
-    "Fc=m*V**2#\n",
-    "BL=44.81*10**3#\n",
-    "FOS=35#\n",
-    "F1=BL/FOS#\n",
-    "theta=pi-(2*asin((D-d)/(2*C)))#\n",
-    "beta=22.5*pi/180#\n",
-    "u=0.13#\n",
-    "x=u*theta/sin(beta)#\n",
-    "F2=(F1-Fc)/exp(x)#\n",
-    "n=P/((F1-F2)*V)#\n",
-    "n=13#\n",
-    "print \"n is %0.0f    \"%(n)#"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "## exa 24-2 - Page 635"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 2,
-   "metadata": {
-    "collapsed": false
-   },
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      " annual FOS is 5.02    \n",
-      "\n",
-      " FOS neglecting bending load is 13.9    \n"
-     ]
-    }
-   ],
-   "source": [
-    "from math import sqrt, pi\n",
-    "W=1000#\n",
-    "m=0.498#\n",
-    "BL=78#\n",
-    "d=12#\n",
-    "Am=0.39*d**2#\n",
-    "dw=sqrt(Am*4/(6*19*pi))#\n",
-    "Ew=74.4*10**3#\n",
-    "Ds=56*d#\n",
-    "sigb=Ew*dw/Ds#\n",
-    "Wb=sigb*pi*(d**2)/4*10**-3#\n",
-    "l=20#\n",
-    "Ws=m*l#\n",
-    "a=1.2#\n",
-    "Wa=a*(W/2+Ws)*10**-3#\n",
-    "#Let the static load be Ps\n",
-    "Ps=(W/2+Ws)*9.81*10**-3#\n",
-    "#let the effective load  be Peff\n",
-    "Peff=Ps+Wb+Wa#\n",
-    "FOS1=BL/Peff#\n",
-    "FOS2=BL/(5+0.612)#\n",
-    "print \" annual FOS is %0.2f    \"%(FOS1)#\n",
-    "print \"\\n FOS neglecting bending load is %0.1f    \"%(FOS2)#"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "## exa 24-3 - Page 636"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 3,
-   "metadata": {
-    "collapsed": false
-   },
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "W is 28.224 kN   \n"
-     ]
-    }
-   ],
-   "source": [
-    "d=12#\n",
-    "sigut=1960#\n",
-    "Pb=0.0025*sigut#\n",
-    "Ds=480#\n",
-    "F=Pb*d*Ds/2#\n",
-    "W=F*2*10**-3#\n",
-    "print \"W is %0.3f kN   \"%(W)#"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "## exa 24-4 - Page 637"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 4,
-   "metadata": {
-    "collapsed": false
-   },
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "d is 12 mm   \n"
-     ]
-    }
-   ],
-   "source": [
-    "from math import sqrt, pi\n",
-    "sigut=1770#\n",
-    "Pb=0.0018*sigut#\n",
-    "W=4000#\n",
-    "a=2.5/2#\n",
-    "Ws=90*0.5#\n",
-    "Wa=(W+Ws)*a/9.81#\n",
-    "Weff=W+Wa#\n",
-    "d=sqrt(Weff*2/(23*Pb))#\n",
-    "d=12#\n",
-    "print \"d is %0.0f mm   \"%(d)#"
-   ]
-  }
- ],
- "metadata": {
-  "kernelspec": {
-   "display_name": "Python 2",
-   "language": "python",
-   "name": "python2"
-  },
-  "language_info": {
-   "codemirror_mode": {
-    "name": "ipython",
-    "version": 2
-   },
-   "file_extension": ".py",
-   "mimetype": "text/x-python",
-   "name": "python",
-   "nbconvert_exporter": "python",
-   "pygments_lexer": "ipython2",
-   "version": "2.7.9"
-  }
- },
- "nbformat": 4,
- "nbformat_minor": 0
-}