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+{
+ "metadata": {
+ "name": "Chapter_3"
+ },
+ "nbformat": 2,
+ "worksheets": [
+ {
+ "cells": [
+ {
+ "cell_type": "markdown",
+ "source": [
+ "<h1>Chapter_3: Force Torque and Velocity<h1>"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "source": [
+ "<h3>Example 3.1, Page Number: 163<h3>"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "'''Force calculation'''",
+ "",
+ "#variable declaration",
+ "m1=20 #mass of the body in Kg ",
+ "a=5 #acceleration in m/s^2",
+ "",
+ "#calculation",
+ "F=m1*a",
+ "",
+ "#result",
+ "print('F = %d Newtons'%F)"
+ ],
+ "language": "python",
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "F = 100 Newtons"
+ ]
+ }
+ ],
+ "prompt_number": 6
+ },
+ {
+ "cell_type": "markdown",
+ "source": [
+ "<h3>Example 3.2, Page Number: 163<h3>"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "'''Weight calculation'''",
+ "",
+ "#variable declaration",
+ "m1=50 #mass of the body in Kg ",
+ "g1=9.8 #acceleration due to gravity",
+ "",
+ "#calculation",
+ "W2=m1*g1",
+ "",
+ "#result",
+ "print('W = %d Newtons = %d kgf' %(W2,m1))"
+ ],
+ "language": "python",
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "W = 490 Newtons = 50 kgf"
+ ]
+ }
+ ],
+ "prompt_number": 7
+ },
+ {
+ "cell_type": "markdown",
+ "source": [
+ "<h3>Example 3.3, Page Number: 164<h3>"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "'''calculation of specific gravity'''",
+ "",
+ "#variable declaration",
+ "wt_material=2500.0 #weight of 1 m^3 material",
+ "wt_water=1000.0 #weight of 1 m^3 water",
+ "",
+ "#calculation",
+ "spe_grav=wt_material/wt_water",
+ "",
+ "#result",
+ "print('Specific gravity of the material = %.1f' %spe_grav)"
+ ],
+ "language": "python",
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Specific gravity of the material = 2.5"
+ ]
+ }
+ ],
+ "prompt_number": 8
+ },
+ {
+ "cell_type": "markdown",
+ "source": [
+ "<h3>Example 3.4, Page Number: 164<h3>"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "'''Estimation of uncertainty due to sensitivity'''",
+ "",
+ "import math",
+ "#variable declaration",
+ "L=20.0 # length in cm",
+ "W=2000.0 # Weight of mass in gm ",
+ "db=0.02 # length in cm ",
+ "Wb=100.0 # Weight of mass in gm ",
+ "dG=0.5 # length in cm",
+ "",
+ "#calculation",
+ "S=L/(2*W*db+Wb*dG)",
+ "fi=0.2",
+ "DeltaW=fi*math.pi/(180*S)",
+ "",
+ "#result",
+ "print('S = %.3f rad/g' %S)",
+ "print('\\nDeltaW = %.3f g' %DeltaW)"
+ ],
+ "language": "python",
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "S = 0.154 rad/g",
+ "",
+ "DeltaW = 0.023 g"
+ ]
+ }
+ ],
+ "prompt_number": 9
+ },
+ {
+ "cell_type": "markdown",
+ "source": [
+ "<h3>Example 3.5, Page Number: 164<h3>"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "'''Torque Calculation'''",
+ "",
+ "import math",
+ "",
+ "#variable declaration",
+ "hp=746.0 # horse power",
+ "P=5*hp # Saft power in Watts",
+ "N=1500.0 # speed in rpm",
+ "",
+ "#calculation",
+ "n=N/60.0",
+ "T=P*60/(2*math.pi*n)",
+ "",
+ "#result",
+ "print('T = %.0f Newton meters' %(math.ceil(T)))"
+ ],
+ "language": "python",
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "T = 1425 Newton meters"
+ ]
+ }
+ ],
+ "prompt_number": 10
+ },
+ {
+ "cell_type": "markdown",
+ "source": [
+ "<h3>Example 3.6, Page Number: 165<h3>"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "'''Force calculation'''",
+ "",
+ "#variable declaration",
+ "ch_l=0.075 #change in length",
+ "orig_l=50.0 #Original length",
+ "",
+ "#calculation",
+ "S=ch_l/orig_l",
+ "E=9.66*10**5",
+ "stress=E*S",
+ "area=1.5",
+ "f=stress*area",
+ "",
+ "#result",
+ "print('Strain = %.4f cm/cm\\nStress =%d kg/cm^2\\nForce = %.1f kg'%(S,stress,f))"
+ ],
+ "language": "python",
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Strain = 0.0015 cm/cm",
+ "Stress =1449 kg/cm^2",
+ "Force = 2173.5 kg"
+ ]
+ }
+ ],
+ "prompt_number": 11
+ },
+ {
+ "cell_type": "markdown",
+ "source": [
+ "<h3>Example 3.7, Page Number: 165<h3>"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "'''resistance strain gauge'''",
+ "",
+ "import math",
+ "",
+ "#(a)",
+ "",
+ "#variable declaration",
+ "R1=120.0 # resistance in Ohm",
+ "R2=120.0 # resistance in Ohm",
+ "R3=120.0 # resistance in Ohm",
+ "R4=120.0 # resistance in Ohm",
+ "Rg=100.0 # resistance in Ohm",
+ "",
+ "#calculation",
+ "C=(R1*R2*R4)+(R1*R3*R4)+(R1*R2*R3)+(R2*R3*R4)+(Rg*(R1+R4)*(R2+R3))",
+ "C=C/(10**7)",
+ "",
+ "#result",
+ "print('(a)\\nC=%.3f*10^7' %C)",
+ "E=10",
+ "F=(E*R3*R1*2*10**3)/(C*10**7)",
+ "print('\\nF = %.1f *10^3 A/mm = %.1f mA/mm'%(F,F))",
+ "",
+ "#(b)",
+ "",
+ "#calculation",
+ "Fe=2*10**-4",
+ "E=10",
+ "DeltaE=Fe*E/(4+4*10**-4)",
+ "DeltaE=DeltaE*10**3",
+ "",
+ "#Result",
+ "print('\\n(b)\\nDeltaEg=%.1f mV' %DeltaE)"
+ ],
+ "language": "python",
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "(a)",
+ "C=1.267*10^7",
+ "",
+ "F = 22.7 *10^3 A/mm = 22.7 mA/mm",
+ "",
+ "(b)",
+ "DeltaEg=0.5 mV"
+ ]
+ }
+ ],
+ "prompt_number": 12
+ },
+ {
+ "cell_type": "markdown",
+ "source": [
+ "<h3>Example 3.8, PAge Number: 167<h3>"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "'''speed measurement using stroboscope'''",
+ "",
+ "#(a)",
+ "import math",
+ "",
+ "#variable Declaration",
+ "r1=2500.0 # Highest flasing rate ",
+ "r2=1500.0 # next Highest flasing rate ",
+ "",
+ "#calculation",
+ "n=(r1*r2)/(r1-r2)",
+ "",
+ "#result",
+ "print('(a)\\nn = %d rpm'%n)",
+ "",
+ "#(b)",
+ "",
+ "#variable declaration",
+ "N=5.0 # Fift time syncronization for same speed",
+ "",
+ "#calculation",
+ "r5=n*r1/((r1*(N-1))+n)",
+ "r5=math.ceil(r5)",
+ "",
+ "#result",
+ "print('\\n(b)\\nr5=%d Flashes/Minute' %r5)"
+ ],
+ "language": "python",
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "(a)",
+ "n = 3750 rpm",
+ "",
+ "(b)",
+ "r5=682 Flashes/Minute"
+ ]
+ }
+ ],
+ "prompt_number": 13
+ },
+ {
+ "cell_type": "markdown",
+ "source": [
+ "<h3>Example 3.9, Page Number: 167<h3>"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "'''speed measurement using proximity'''",
+ "",
+ "#variable declaration",
+ "rpm=1500.0 #rotation in rpm",
+ "f=200.0 #frequency",
+ "",
+ "#calculation",
+ "N=60*f/rpm",
+ "",
+ "#result",
+ "print('No of teeth on the wheel\\nN=%d' %N)"
+ ],
+ "language": "python",
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "No of teeth on the wheel",
+ "N=8"
+ ]
+ }
+ ],
+ "prompt_number": 14
+ }
+ ]
+ }
+ ]
+} \ No newline at end of file
generated by cgit (git 2.34.1) at 2024-12-20 11:35:22 +0000