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+{
+"cells": [
+ {
+		   "cell_type": "markdown",
+	   "metadata": {},
+	   "source": [
+       "# Chapter 11: Gear Design"
+	   ]
+	},
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 11.1: Double_Reduction_Spur_Gear_Set.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clc;\n",
+"clear;\n",
+"mprintf('MACHINE DESIGN \n Timothy H. Wentzell, P.E. \n EXAMPLE-11.1 Page No.217\n');\n",
+"N2=60;\n",
+"N1=20;\n",
+"N3=20;\n",
+"N4=60;\n",
+"Vr=(N2/N1)*(N4/N3);\n",
+"//Output speed\n",
+"n1=3600;\n",
+"n4=n1/Vr;\n",
+"mprintf('\n The output speed is %f rpm.',n4);\n",
+"//Output torque\n",
+"T1=200;\n",
+"T4=T1*Vr;\n",
+"mprintf('\n The output torque is %f lb*in.',T4);\n",
+"//Input horsepower\n",
+"hpi=T1*n1/63000;\n",
+"mprintf('\n The input horsepower is %f hp.',hpi);\n",
+"//Output horsepower\n",
+"hpo=T4*n4/63000;\n",
+"mprintf('\n The output horsepower is %f hp.',hpo);"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 11.2: Double_Reduction_Spur_Gear_Set_with_Idler.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clc;\n",
+"clear;\n",
+"mprintf('MACHINE DESIGN \n Timothy H. Wentzell, P.E. \n EXAMPLE-11.2 Page No.219\n');\n",
+"Na=20;\n",
+"Nb=65;\n",
+"Nc=20;\n",
+"Nd=22;\n",
+"Ne=60;\n",
+"//train value\n",
+"Vr=(Nb/Na)*(Nd/Nc)*(Ne/Nd);\n",
+"mprintf('\n Train value = %f ',Vr);\n",
+"//Output speed\n",
+"na=3000;\n",
+"ne=na/Vr;\n",
+"mprintf('\n \Output speed = %f rpm.',ne);\n",
+"//Output torque\n",
+"Ta=10;\n",
+"Te=Ta*Vr;\n",
+"mprintf('\n Output torque = %f lb*in.',Te);\n",
+"//Direction\n",
+"mprintf('\n Direction\n   If Gear A is clockwise,\n   Gear B is counterclockwise.\n   Gear C is counterclockwise.\n   Gear D is clockwise. \n   Gear E is counterclockwise.');\n",
+"//Output power\n",
+"P=Te*ne;\n",
+"P=P*%pi/60;\n",
+" mprintf('\n Output power = %f W.',P);"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 11.3: Calculation_of_Pitch_Diameter_Circular_Pitch_and_Shaft_Centre_to_Centre_Distance.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clc;\n",
+"clear;\n",
+"mprintf('MACHINE DESIGN \n Timothy H. Wentzell, P.E. \n EXAMPLE-11.3 Page No.231\n');\n",
+"Np=16;\n",
+"Ng=32;\n",
+"Pd=8;\n",
+"//Pitch diameter\n",
+"Dp=Np/Pd;\n",
+"mprintf('\n Pinion pitch diameter is %f in.',Dp);\n",
+"Dg=Ng/Pd;\n",
+"mprintf('\n Gear pitch diameter is %f in.',Dg);\n",
+"//Circular pitch\n",
+"Pc=%pi*Dp/Np;\n",
+"mprintf('\n Circular pitch is %f in.',Pc);\n",
+"//Centerline distance\n",
+"CC=(Dp+Dg)/2;\n",
+"mprintf('\n Centerline distance is %f in.',CC);"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 11.4: Bevel_Gear.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clc;\n",
+"clear;\n",
+"mprintf('MACHINE DESIGN \n Timothy H. Wentzell, P.E. \n EXAMPLE-11.4 Page No.236\n');\n",
+"//Torque in input shaft\n",
+"hp=1.5;\n",
+"n=3450;\n",
+"T=63000*hp/n;\n",
+"mprintf('\n Torque in input shaft is %f lb*in.',T);\n",
+"//Note-In the book T=27.4 in-lb is used instead of T=27.391304\n",
+"//Output torque\n",
+"Ng=24;\n",
+"Np=10;\n",
+"Tout=(Ng/Np)*T;\n",
+"mprintf('\n Output torque is %f lb*in.',Tout);\n",
+"//Output speed\n",
+"nout=(Np/Ng)*n;\n",
+"mprintf('\n Output speed is %f rpm.',nout);"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 11.5: Calculation_of_Gear_Train_Value_Input_and_Output_Torque_and_Speed.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clc;\n",
+"clear;\n",
+"mprintf('MACHINE DESIGN \n Timothy H. Wentzell, P.E. \n EXAMPLE-11.5 Page No.241\n');\n",
+"//Gear train value\n",
+"Na=12;\n",
+"Nb=36;\n",
+"Nc=16;\n",
+"Nd=64;\n",
+"Vr=(Nb/Na)*(Nd/Nc);\n",
+"mprintf('\n Gear train value is %f ',Vr);\n",
+"//Motor torque\n",
+"hp=1.5;\n",
+"n=1750;\n",
+"T=63000*hp/n;\n",
+"mprintf('\n Motor torque is %f in-lb.',T);\n",
+"//Output torque\n",
+"Tout=T*Vr;\n",
+"mprintf('\n Output torque is %f in-lb.',Tout);\n",
+"//Output speed\n",
+"nout=n/Vr;\n",
+"mprintf('\n Output speed is %f rpm.',nout);\n",
+"//Directions\n",
+"mprintf('\n Directions\n  Gear A is clockwise.\n  Gear B is counterclockwise.\n  Gear C is counterclockwise.\n  Gear D is clockwise.');\n",
+"//Output power\n",
+"hp=T*n/63000;\n",
+"mprintf('\n Output power is %f hp.',hp);"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 11.6: Precision_Spur_Gears.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clc;\n",
+"clear;\n",
+"mprintf('MACHINE DESIGN \n Timothy H. Wentzell, P.E. \n EXAMPLE-11.6 Page No.243\n');\n",
+"//Velocity ratio\n",
+"N2=2400;\n",
+"N1=20;\n",
+"Vr=N2/N1;\n",
+"mprintf('\n Velocity ratio = %f ',Vr);\n",
+"mprintf('\n Possible Solution: \n Three sets of gears \n   -20 tooth and 80 tooth\n   -20 tooth and 100 tooth\n   -20 tooth and 120 tooth.');"
+   ]
+   }
+],
+"metadata": {
+		  "kernelspec": {
+		   "display_name": "Scilab",
+		   "language": "scilab",
+		   "name": "scilab"
+		  },
+		  "language_info": {
+		   "file_extension": ".sce",
+		   "help_links": [
+			{
+			 "text": "MetaKernel Magics",
+			 "url": "https://github.com/calysto/metakernel/blob/master/metakernel/magics/README.md"
+			}
+		   ],
+		   "mimetype": "text/x-octave",
+		   "name": "scilab",
+		   "version": "0.7.1"
+		  }
+		 },
+		 "nbformat": 4,
+		 "nbformat_minor": 0
+}