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Electronic_Communication_Systems_by_Roy_Blake/Chapter15.ipynb A Electronic_Communication_Systems_by_Roy_Blake/Chapter16.ipynb A Electronic_Communication_Systems_by_Roy_Blake/Chapter17.ipynb A Electronic_Communication_Systems_by_Roy_Blake/Chapter18.ipynb A Electronic_Communication_Systems_by_Roy_Blake/Chapter19.ipynb A Electronic_Communication_Systems_by_Roy_Blake/Chapter2.ipynb A Electronic_Communication_Systems_by_Roy_Blake/Chapter20.ipynb A Electronic_Communication_Systems_by_Roy_Blake/Chapter21.ipynb A Electronic_Communication_Systems_by_Roy_Blake/Chapter22.ipynb A Electronic_Communication_Systems_by_Roy_Blake/Chapter23.ipynb A Electronic_Communication_Systems_by_Roy_Blake/Chapter24.ipynb A Electronic_Communication_Systems_by_Roy_Blake/Chapter25.ipynb A Electronic_Communication_Systems_by_Roy_Blake/Chapter3.ipynb A Electronic_Communication_Systems_by_Roy_Blake/Chapter4.ipynb A Electronic_Communication_Systems_by_Roy_Blake/Chapter5.ipynb A Electronic_Communication_Systems_by_Roy_Blake/Chapter6.ipynb A Electronic_Communication_Systems_by_Roy_Blake/Chapter7.ipynb A Electronic_Communication_Systems_by_Roy_Blake/Chapter8.ipynb A Electronic_Communication_Systems_by_Roy_Blake/Chapter9.ipynb A Electronic_Communication_Systems_by_Roy_Blake/screenshots/Chapter12.png A Electronic_Communication_Systems_by_Roy_Blake/screenshots/Chapter13.png A Electronic_Communication_Systems_by_Roy_Blake/screenshots/chapter1.png A Engineering_Mechanics:_Statics_&_Engineering_Mechanics:_Dynamics_by_Meriam,_J._L.,_&_Kraige,_L._G./CHAPTER1.ipynb A Engineering_Mechanics:_Statics_&_Engineering_Mechanics:_Dynamics_by_Meriam,_J._L.,_&_Kraige,_L._G./CHAPTER2.ipynb A Engineering_Mechanics:_Statics_&_Engineering_Mechanics:_Dynamics_by_Meriam,_J._L.,_&_Kraige,_L._G./CHAPTER3.ipynb A Engineering_Mechanics:_Statics_&_Engineering_Mechanics:_Dynamics_by_Meriam,_J._L.,_&_Kraige,_L._G./CHAPTER4.ipynb A Engineering_Mechanics:_Statics_&_Engineering_Mechanics:_Dynamics_by_Meriam,_J._L.,_&_Kraige,_L._G./CHAPTER5.ipynb A Engineering_Mechanics:_Statics_&_Engineering_Mechanics:_Dynamics_by_Meriam,_J._L.,_&_Kraige,_L._G./CHAPTER6.ipynb A Engineering_Mechanics:_Statics_&_Engineering_Mechanics:_Dynamics_by_Meriam,_J._L.,_&_Kraige,_L._G./CHAPTER7.ipynb A Engineering_Mechanics:_Statics_&_Engineering_Mechanics:_Dynamics_by_Meriam,_J._L.,_&_Kraige,_L._G./CHAPTER8.ipynb A Engineering_Mechanics:_Statics_&_Engineering_Mechanics:_Dynamics_by_Meriam,_J._L.,_&_Kraige,_L._G./screenshots/figure1.png A Engineering_Mechanics:_Statics_&_Engineering_Mechanics:_Dynamics_by_Meriam,_J._L.,_&_Kraige,_L._G./screenshots/figure2.png A Engineering_Mechanics:_Statics_&_Engineering_Mechanics:_Dynamics_by_Meriam,_J._L.,_&_Kraige,_L._G./screenshots/figure3.png A Engineering_Mechanics_(Statics,_Dynamics),_by_Hibler_and_Gupta/Chapter_10_Moments_of_Inertia.ipynb A 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+{
+ "metadata": {
+ "name": "chapter 6.ipynb"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+ {
+ "cells": [
+ {
+ "cell_type": "heading",
+ "level": 1,
+ "metadata": {},
+ "source": [
+ "Chapter 6:Analysis Of Perfect Frames"
+ ]
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 6.1,Page No.124"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "F_A=20 #KN #Force at A\n",
+ "theta=60 #Degrees\n",
+ "alpha=30 #Degrees\n",
+ "L_BC=5 #m\n",
+ "\n",
+ "#Calculations\n",
+ "\n",
+ "#Length AB\n",
+ "L_AB=L_BC*cos(theta*pi*180**-1) #m\n",
+ " \n",
+ "#Distance of line of action \n",
+ "x=1.25 #m\n",
+ "\n",
+ "#Reactions\n",
+ "R_C=F_A*x*L_BC**-1 #KN\n",
+ "R_B=F_A-R_C #KN\n",
+ "\n",
+ "#Force in AB & BC\n",
+ "F_AB=R_B*(sin(theta*pi*180**-1))**-1 #KN\n",
+ "F_BC=F_AB*cos(theta*pi*180**-1) #KN\n",
+ "\n",
+ "#Force in AC & BC\n",
+ "F_AC=R_C*(sin(alpha*pi*180**-1))**-1 #KN\n",
+ "\n",
+ "#Result\n",
+ "print\"FOrces in members are:F_AB\",round(F_AB,2),\"KN\"\n",
+ "print\" :F_BC\",round(F_BC,2),\"KN\"\n",
+ "print\" :F_AC\",round(F_AC,2),\"KN\"\n",
+ "print\" :F_BC\",round(F_BC,2),\"KN\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "FOrces in members are:F_AB 17.32 KN\n",
+ " :F_BC 8.66 KN\n",
+ " :F_AC 10.0 KN\n",
+ " :F_BC 8.66 KN\n"
+ ]
+ }
+ ],
+ "prompt_number": 18
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 6.2,Page No.125"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "F_D=1 #KN\n",
+ "L_AD=5 #m #Length AD\n",
+ "L_AB=7.5 #m #Length AB\n",
+ "theta=60 #degrees\n",
+ "alpha=30 #Degrees\n",
+ "\n",
+ "#Calculations\n",
+ "\n",
+ "#REactions\n",
+ "R_B=L_AD*L_AB**-1 #KN\n",
+ "R_A=F_D-R_B #KN\n",
+ "\n",
+ "#Forces\n",
+ "\n",
+ "F_AC=R_A*(sin(alpha*pi*180**-1))**-1 #KN\n",
+ "F_AD=F_AC*cos(alpha*pi*180**-1) #KN\n",
+ "F_BC=R_B*(sin(alpha*pi*180**-1))**-1 #KN\n",
+ "F_BD=F_BC*(cos(alpha*pi*180**-1)) #KN\n",
+ "F_CD=1*(sin(theta*pi*180**-1))**-1\n",
+ "\n",
+ "#Result\n",
+ "print\"forces in members are:F_AC\",round(F_AC,2),\"KN\"\n",
+ "print\" :F_AD\",round(F_AD,2),\"KN\"\n",
+ "print\" :F_BC\",round(F_BC,2),\"KN\"\n",
+ "print\" :F_BD\",round(F_BD,2),\"KN\"\n",
+ "print\" :F_CD\",round(F_CD,2),\"KN\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "forces in members are:F_AC 0.67 KN\n",
+ " :F_AD 0.58 KN\n",
+ " :F_BC 1.33 KN\n",
+ " :F_BD 1.15 KN\n",
+ " :F_CD 1.15 KN\n"
+ ]
+ }
+ ],
+ "prompt_number": 19
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 6.3,Page No.127"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "L_AB=5 #m #Length AB\n",
+ "theta=60 #Degrees\n",
+ "alpha=30 #Degrees\n",
+ "F_D=10 #KN\n",
+ "F_E=12 #KN\n",
+ "\n",
+ "#Calculations\n",
+ "\n",
+ "#Length\n",
+ "L_AC=L_AD=L_AB*(cos(theta*pi*180**-1)) #m\n",
+ "\n",
+ "#Distance of line of action\n",
+ "x=1.25 #m\n",
+ "\n",
+ "L_BC=L_AB-L_AD #m\n",
+ "L_BE=L_BC*cos(alpha*pi*180**-1) #m\n",
+ "\n",
+ "#line of action \n",
+ "x2=1.875 #m\n",
+ "x3=3.125\n",
+ "\n",
+ "#Reactions\n",
+ "R_B=(F_D*x+F_E*x3)*L_AB**-1 #KN\n",
+ "R_A=(F_D+F_E)-R_B #KN\n",
+ "\n",
+ "#Forces\n",
+ "\n",
+ "F_AD=F_E*(sin(theta*pi*180**-1))**-1 #KN\n",
+ "F_AC=F_AD*cos(theta*pi*180**-1) #KN\n",
+ "F_BE=F_D*(sin(alpha*pi*180**-1))**-1 #KN\n",
+ "F_BC=F_BE*cos(alpha*pi*180**-1) #KN\n",
+ "\n",
+ "#After simplifying joint C we get\n",
+ "#F_CD=-F_CE\n",
+ "#after further simplifying\n",
+ "F_CE=20.784*2**-1 #KN\n",
+ "F_CD=F_CE #KN\n",
+ "F_ED=F_BE-(F_E*cos(theta*pi*180**-1)) #KN\n",
+ "\n",
+ "#Result\n",
+ "print\"forces in members are:F_AC\",round(F_AC,2),\"KN\"\n",
+ "print\" :F_AD\",round(F_AD,2),\"KN\"\n",
+ "print\" :F_BC\",round(F_BC,2),\"KN\"\n",
+ "print\" :F_BE\",round(F_BE,2),\"KN\"\n",
+ "print\" :F_CD\",round(F_CD,2),\"KN\"\n",
+ "print\" :F_CE\",round(F_CE,2),\"KN\"\n",
+ "print\" :F_ED\",round(F_ED,2),\"KN\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "forces in members are:F_AC 6.93 KN\n",
+ " :F_AD 13.86 KN\n",
+ " :F_BC 17.32 KN\n",
+ " :F_BE 20.0 KN\n",
+ " :F_CD 10.39 KN\n",
+ " :F_CE 10.39 KN\n",
+ " :F_ED 14.0 KN\n"
+ ]
+ }
+ ],
+ "prompt_number": 20
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 6.4,Page No.129"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "L_GH=L_AG=L_HB=3 #m\n",
+ "L_FB=L_EH=L_DG=L_AC=4 #m\n",
+ "L_AB=9 #m \n",
+ "F_G=9 #KN\n",
+ "F_H=12 #KN\n",
+ "\n",
+ "#Calculations\n",
+ "\n",
+ "#Reactions\n",
+ "R_B=(F_G*L_AG+F_H*(L_AG+L_GH))*L_AB**-1 #KN\n",
+ "R_A=(F_G+F_H)-R_B #KN\n",
+ "\n",
+ "#Joint C\n",
+ "#After resolving and simplifying we get\n",
+ "#cos(theta)=4*5**-1\n",
+ "#sin(theta)=3*4**-1\n",
+ "#Let cos(theta)=X\n",
+ "X=4*5**-1\n",
+ "Y=3*5**-1\n",
+ "\n",
+ "#Forces\n",
+ "\n",
+ "F_AC=R_A #KN\n",
+ "F_CG=R_A*X**-1 #KN\n",
+ "F_CD=F_CG*Y #KN\n",
+ "F_GD=-(F_G-F_CG*X)\n",
+ "F_GH=F_CG*Y \n",
+ "F_DH=1*X**-1 #KN\n",
+ "F_DE=F_GH+F_DH*Y\n",
+ "F_EF=F_DE #KN\n",
+ "F_HF=(F_H-F_GD)*X**-1\n",
+ "\n",
+ "\n",
+ "#Result\n",
+ "print\"Forces in members are:F_AC\",round(F_AC,2),\"KN\"\n",
+ "print\" :F_CG\",round(F_CG,2),\"KN\"\n",
+ "print\" :F_CD\",round(F_CD,2),\"KN\"\n",
+ "print\" :F_GD\",round(F_GD,2),\"KN\"\n",
+ "print\" :F_GH\",round(F_GH,2),\"KN\"\n",
+ "print\" :F_DH\",round(F_DH,2),\"KN\"\n",
+ "print\" :F_DE\",round(F_DE,2),\"KN\"\n",
+ "print\" :F_EF\",round(F_EF,2),\"KN\"\n",
+ "print\" :F_HF\",round(F_HF,2),\"KN\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Forces in members are:F_AC 10.0 KN\n",
+ " :F_CG 12.5 KN\n",
+ " :F_CD 7.5 KN\n",
+ " :F_GD 1.0 KN\n",
+ " :F_GH 7.5 KN\n",
+ " :F_DH 1.25 KN\n",
+ " :F_DE 8.25 KN\n",
+ " :F_EF 8.25 KN\n",
+ " :F_HF 13.75 KN\n"
+ ]
+ }
+ ],
+ "prompt_number": 21
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 6.5,Page No.133"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "F_D=1000 #N \n",
+ "L_AE=L_EF=L_FH=L_BH=1 #m\n",
+ "L_CH=2.25 #m\n",
+ "L=4 #m\n",
+ "\n",
+ "#Calculations\n",
+ "\n",
+ "#Reactions\n",
+ "\n",
+ "#Let sin(theta)=0.6\n",
+ "#cos(theta)=0.8\n",
+ "#tan(theta)=0.75 \n",
+ "#sin(theta)=X\n",
+ "#Cos(theta)=Y\n",
+ "#tan(theta)=Z\n",
+ "X=0.6\n",
+ "Y=0.8\n",
+ "Z=0.75 \n",
+ "\n",
+ "R_B=F_D*L**-1 #KN\n",
+ "R_A=F_D-R_B #KN\n",
+ "\n",
+ "#Forces\n",
+ "\n",
+ "F_AD=R_A*X**-1 #KN\n",
+ "F_AE=F_AD*Y #KN\n",
+ "F_EF=F_AE #KN\n",
+ "\n",
+ "#After dimplifying And further resolving we get\n",
+ "F_DG=833.34*2**-1 #KN\n",
+ "F_DF=416.66+416.67 \n",
+ "F_FG=F_DF*X #KN\n",
+ "F_FH=F_D-F_DF*Y\n",
+ "\n",
+ "#Result\n",
+ "print\"Forces in the members are:F_DG\",round(F_DG,2),\"KN\"\n",
+ "print\" :F_DF\",round(F_DF,2),\"KN\"\n",
+ "print\" :F_FG\",round(F_FG,2),\"KN\"\n",
+ "print\" :F_FH\",round(F_FH,2),\"KN\"\n",
+ "print\" :F_AD\",round(F_AD,2),\"KN\"\n",
+ "print\" :F_AE\",round(F_AE,2),\"KN\"\n",
+ "print\" :F_EF\",round(F_EF,2),\"KN\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Forces in the members are:F_DG 416.67 KN\n",
+ " :F_DF 833.33 KN\n",
+ " :F_FG 500.0 KN\n",
+ " :F_FH 333.34 KN\n",
+ " :F_AD 1250.0 KN\n",
+ " :F_AE 1000.0 KN\n",
+ " :F_EF 1000.0 KN\n"
+ ]
+ }
+ ],
+ "prompt_number": 22
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 6.6,Page No.135"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "theta=60\n",
+ "alpha=30\n",
+ "F_C=1000 #N \n",
+ "\n",
+ "#Calculations\n",
+ "\n",
+ "#Force CD\n",
+ "F_CD=F_C*(sin(theta*pi*180**-1))**-1 #N\n",
+ " \n",
+ "#Force CA\n",
+ "F_CA=F_CD*cos(theta*pi*180**-1) #N\n",
+ "\n",
+ "#FOrce AD\n",
+ "F_AD=F_CD*cos(alpha*pi*180**-1)*(cos(alpha*pi*180**-1))**-1 #N\n",
+ "\n",
+ "#Force BD\n",
+ "F_BD=F_AD*sin(alpha*pi*180**-1)+F_CD*sin(alpha*pi*180**-1) #N\n",
+ "\n",
+ "#Result\n",
+ "print\"Forces in members are:F_CD\",round(F_CD,2),\"N\"\n",
+ "print\" :F_CA\",round(F_CA,2),\"N\"\n",
+ "print\" :F_AD\",round(F_AD,2),\"N\"\n",
+ "print\" :F_BD\",round(F_BD,2),\"N\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Forces in members are:F_CD 1154.7 N\n",
+ " :F_CA 577.35 N\n",
+ " :F_AD 1154.7 N\n",
+ " :F_BD 1154.7 N\n"
+ ]
+ }
+ ],
+ "prompt_number": 23
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 6.7,Page No.136"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "#LEt tan(theta)=X\n",
+ "#cos(theta)=Y\n",
+ "#sin(theta)=Z\n",
+ "L_EC=5\n",
+ "F_B=F_C=1000 #N\n",
+ "X=3*4**-1 \n",
+ "Y=0.8\n",
+ "Z=0.6\n",
+ "\n",
+ "\n",
+ "#Calculations\n",
+ "\n",
+ "#Force CD\n",
+ "F_CD=F_B*Z**-1 #N\n",
+ "\n",
+ "#Force CB\n",
+ "F_CB=F_CD*Y\n",
+ "\n",
+ "#Force BD\n",
+ "F_BD=F_B #N\n",
+ "\n",
+ "#Force BA\n",
+ "F_BA=F_CB #N\n",
+ "\n",
+ "#in joint D,resolving forces we get\n",
+ "#F_AD+F_ED=3333.32 .........1\n",
+ "#After further simplifying we get\n",
+ "#F_ED-F_AD=1666.66 .............2\n",
+ "\n",
+ "#Froce ED\n",
+ "F_ED=4999.98*2**-1 #N\n",
+ "\n",
+ "#Force AD\n",
+ "F_AD=3333.32-F_ED #N\n",
+ "\n",
+ "\n",
+ "#Result\n",
+ "print\"Forces in the members are:F_CD\",round(F_CD,2),\"N\"\n",
+ "print\" :F_CB\",round(F_CB,2),\"N\"\n",
+ "print\" :F_BD\",round(F_BD,2),\"N\"\n",
+ "print\" :F_BA\",round(F_BA,2),\"N\"\n",
+ "print\" :F_AD\",round(F_AD,2),\"N\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Forces in the members are:F_CD 1666.67 N\n",
+ " :F_CB 1333.33 N\n",
+ " :F_BD 1000.0 N\n",
+ " :F_BA 1333.33 N\n",
+ " :F_AD 833.33 N\n"
+ ]
+ }
+ ],
+ "prompt_number": 24
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 6.8,Page No.138"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "F_D=12 #KN #Force at D\n",
+ "F_C=18 #KN\n",
+ "L_AC=2 #m \n",
+ "L_CB=2 #m\n",
+ "L_DC=1.5 #m\n",
+ "L_AB=4 #m\n",
+ "\n",
+ "#Calculations\n",
+ "\n",
+ "#Reactions\n",
+ "\n",
+ "R_B=(F_C*L_AC+F_D*L_DC)*L_AB**-1 #KN\n",
+ "R_A=(F_C)-R_B #KN\n",
+ "\n",
+ "#Let cos(theta)=X\n",
+ "#sin(theta)=Y\n",
+ "\n",
+ "X=0.8 \n",
+ "Y=0.6 \n",
+ "\n",
+ "#Forces\n",
+ "\n",
+ "F_AD=R_A*Y**-1 #KN\n",
+ "F_AC=F_D+F_AD*X #KN\n",
+ "F_CD=F_AC\n",
+ "F_BC=F_AC #KN\n",
+ "F_BD=R_B*(Y)**-1 #KN\n",
+ "\n",
+ "#Result\n",
+ "print\"forces in members are:F_AC\",round(F_AC,2),\"KN\"\n",
+ "print\" :F_AD\",round(F_AD,2),\"KN\"\n",
+ "print\" :F_BC\",round(F_BC,2),\"KN\"\n",
+ "print\" :F_BD\",round(F_BD,2),\"KN\"\n",
+ "print\" :F_CD\",round(F_CD,2),\"KN\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "forces in members are:F_AC 18.0 KN\n",
+ " :F_AD 7.5 KN\n",
+ " :F_BC 18.0 KN\n",
+ " :F_BD 22.5 KN\n",
+ " :F_CD 18.0 KN\n"
+ ]
+ }
+ ],
+ "prompt_number": 25
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 6.9,Page No.139"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "L_AF=L_FG=L_BG=4 #m\n",
+ "L_AB=12 #m\n",
+ "F_F=3 #KN\n",
+ "F_G=6 #KN\n",
+ "F_E=8 #KN\n",
+ "V=1.5 #m #Vertical Distance\n",
+ "\n",
+ "#Calculations\n",
+ "\n",
+ "#Reactions\n",
+ "R_B=(F_E*V+F_F*L_AF+F_G*(L_AF+L_FG))*L_AB**-1\n",
+ "R_A=(F_F+F_G)-R_B\n",
+ "\n",
+ "#Let cos(theta)=X\n",
+ "#Sin(theta)=Y\n",
+ "X=0.8\n",
+ "Y=0.6 \n",
+ "\n",
+ "#Forces\n",
+ "F_CA=F_F*Y**-1 #KN\n",
+ "F_FA=F_CA*X+F_E #KN\n",
+ "F_CF=F_CA #KN\n",
+ "F_CD=(F_CA+F_CF)*X #KN\n",
+ "F_DF=(-F_CF*Y+F_F)*Y**-1 #KN\n",
+ "F_GF=F_FA+F_CF*X #KN\n",
+ "F_DE=F_CD #KN\n",
+ "F_GE=F_G*Y**-1 #KN\n",
+ "F_GB=F_GF-F_GE*X #KN\n",
+ "F_BE=F_GE #KN\n",
+ "\n",
+ "#Result\n",
+ "print\"Forces in the members are:F_CA\",round(F_CA,2),\"KN\"\n",
+ "print\" :F_FA\",round(F_FA,2),\"KN\"\n",
+ "print\" :F_CF\",round(F_CF,2),\"KN\"\n",
+ "print\" :F_CD\",round(F_CD,2),\"KN\"\n",
+ "print\" :F_DF\",round(F_DF,2),\"KN\"\n",
+ "print\" :F_GF\",round(F_GF,2),\"KN\"\n",
+ "print\" :F_DE\",round(F_DE,2),\"KN\"\n",
+ "print\" :F_GE\",round(F_GE,2),\"KN\"\n",
+ "print\" :F_GB\",round(F_GB,2),\"KN\"\n",
+ "print\" :F_BE\",round(F_BE,2),\"KN\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Forces in the members are:F_CA 5.0 KN\n",
+ " :F_FA 12.0 KN\n",
+ " :F_CF 5.0 KN\n",
+ " :F_CD 8.0 KN\n",
+ " :F_DF 0.0 KN\n",
+ " :F_GF 16.0 KN\n",
+ " :F_DE 8.0 KN\n",
+ " :F_GE 10.0 KN\n",
+ " :F_GB 8.0 KN\n",
+ " :F_BE 10.0 KN\n"
+ ]
+ }
+ ],
+ "prompt_number": 26
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 6.10,Page No.142"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "theta=60 #DEgrees\n",
+ "alpha=30 #Degrees\n",
+ "L_AE=L_EF=L_FB=4 #m\n",
+ "L_AB=12 #m\n",
+ "F_A=1 #KN\n",
+ "F_C=2 #KN\n",
+ "F_D=1 #KN\n",
+ "\n",
+ "#Calculations\n",
+ "\n",
+ "L_AC=L_AE*cos(alpha*pi*180**-1) #m\n",
+ "L_AD=F_C*L_AC #m\n",
+ "\n",
+ "#Reactions\n",
+ "R_B=(F_C*L_AC+F_A*L_AD+F_D*L_AE)*L_AB**-1\n",
+ "V=(F_A+F_C+F_D)*sin(theta*pi*180**-1)+1 #KN\n",
+ "H=(F_A+F_C+F_D)*cos(theta*pi*180**-1) #KN\n",
+ "R_A=V-R_B #KN\n",
+ "\n",
+ "#Forces\n",
+ "F_AC=(R_A-(F_A*sin(theta*pi*180**-1)))*(sin(alpha*pi*180**-1))**-1\n",
+ "F_AE=F_C+F_AC*cos(alpha*pi*180**-1)-F_A*cos(theta*pi*180**-1) #KN\n",
+ "F_CD=F_AC\n",
+ "F_CE=F_C #KN\n",
+ "F_ED=F_C+(sin(theta*pi*180**-1))**-1 #KN\n",
+ "F_EF=F_AE-F_C*cos(theta*pi*180**-1)-F_ED*cos(theta*pi*180**-1)\n",
+ "F_FB=F_EF #KN\n",
+ "F_BG=R_B*(sin(alpha*pi*180**-1))**-1 #KN\n",
+ "F_GD=F_BG #KN\n",
+ "\n",
+ "#Result\n",
+ "print\"Forces in the members are:F_AC\",round(F_AC,2),\"KN\"\n",
+ "print\" :F_AE\",round(F_AE,2),\"KN\"\n",
+ "print\" :F_CD\",round(F_CD,2),\"KN\"\n",
+ "print\" :F_CE\",round(F_CE,2),\"KN\"\n",
+ "print\" :F_ED\",round(F_ED,2),\"KN\"\n",
+ "print\" :F_EF\",round(F_EF,2),\"KN\"\n",
+ "print\" :F_FB\",round(F_FB,2),\"KN\"\n",
+ "print\" :F_BG\",round(F_BG,2),\"KN\"\n",
+ "print\" :F_GD\",round(F_GD,2),\"KN\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Forces in the members are:F_AC 4.22 KN\n",
+ " :F_AE 5.15 KN\n",
+ " :F_CD 4.22 KN\n",
+ " :F_CE 2.0 KN\n",
+ " :F_ED 3.15 KN\n",
+ " :F_EF 2.58 KN\n",
+ " :F_FB 2.58 KN\n",
+ " :F_BG 2.98 KN\n",
+ " :F_GD 2.98 KN\n"
+ ]
+ }
+ ],
+ "prompt_number": 27
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 6.11,Page No.145"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "theta=60 #degrees\n",
+ "alpha=30 #degrees\n",
+ "beta=90 #degrees\n",
+ "L_AB=2.5 #m\n",
+ "L_BC=5 #m\n",
+ "F_A=20 #KN\n",
+ "\n",
+ "#Calculations\n",
+ "\n",
+ "#Reactions\n",
+ "R_C=(F_A*L_AB*cos(theta*pi*180**-1))*L_BC**-1 #kn\n",
+ "R_B=F_A-R_C\n",
+ "\n",
+ "#Forces\n",
+ "\n",
+ "F_AB=(R_B*L_BC)*(R_C*cos(alpha*pi*180**-1))**-1 #KN\n",
+ "F_BC=(L_AB*sin(theta*pi*180**-1))**-1*(R_B*L_AB*cos(theta*pi*180**-1))\n",
+ "\n",
+ "\n",
+ "\n",
+ "#Result\n",
+ "print\"Force in Members are:F_BA\",round(F_AB,2),\"KN\"\n",
+ "print\" :F_BC\",round(F_BC,2),\"KN\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Force in Members are:F_BA 17.32 KN\n",
+ " :F_BC 8.66 KN\n"
+ ]
+ }
+ ],
+ "prompt_number": 28
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 6.12,Page No.146"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "L_AC=L_AD=2.5 #m\n",
+ "L_BC=2.5 #m\n",
+ "L_AB=5 #m\n",
+ "theta=30 #Degrees\n",
+ "alpha=60 #degrees\n",
+ "F_D=10 #KN\n",
+ "F_E=12 #KN\n",
+ "\n",
+ "#Calculations\n",
+ "\n",
+ "L_BE=L_BC*cos(theta*pi*180**-1) #m\n",
+ "L_AD=L_AB*cos(alpha*pi*180**-1) #m\n",
+ "\n",
+ "#Distance of Line of action of load 12 KN\n",
+ "x=L_AB-1.875 #m\n",
+ "\n",
+ "#Reactions\n",
+ "R_B=(F_D*L_AC*2**-1+F_E*x)*L_AB**-1 #KN\n",
+ "R_A=(F_D+F_E)-R_B #KN\n",
+ "\n",
+ "#Forces\n",
+ "F_BC=(R_B*L_BE*cos(theta*pi*180**-1))*(L_BE*sin(theta*pi*180**-1))**-1\n",
+ "F_EC=F_E*cos(theta*pi*180**-1) #KN\n",
+ "F_DE=-((F_E*(L_AC-L_BE*cos(theta*pi*180**-1)))-R_B*L_BC)*(L_AC*sin(theta*pi*180**-1))**-1\n",
+ "\n",
+ "#Result\n",
+ "print\"Reactions are:R_A\",round(R_A,2),\"KN\"\n",
+ "print\" :R_B\",round(R_B,2),\"KN\"\n",
+ "print\"Forces in the members are:F_BC\",round(F_BC,2),\"KN\"\n",
+ "print\" :F_EC\",round(F_EC,2),\"KN\"\n",
+ "print\" :F_DE\",round(F_DE,2),\"KN\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Reactions are:R_A 12.0 KN\n",
+ " :R_B 10.0 KN\n",
+ "Forces in the members are:F_BC 17.32 KN\n",
+ " :F_EC 10.39 KN\n",
+ " :F_DE 14.0 KN\n"
+ ]
+ }
+ ],
+ "prompt_number": 29
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 6.13,Page No.148"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "#Lengths\n",
+ "L_AG=L_GH=L_HB=3\n",
+ "L_AB=9 #m\n",
+ "L_FB=L_EH=L_DG=L_AC=4 #m\n",
+ "\n",
+ "#Forces\n",
+ "F_G=9 #KN\n",
+ "F_H=12 #KN\n",
+ "\n",
+ "#Calculations\n",
+ "\n",
+ "#Reactions\n",
+ "R_B=(F_G*L_AG+F_H*(L_AG+L_GH))*L_AB**-1\n",
+ "R_A=(F_G+F_H)-R_B #KN\n",
+ "\n",
+ "#Forces\n",
+ "F_3=(R_A*L_AG)*L_AC**-1 #KN\n",
+ "F_1=(R_A*L_AG)*L_AC**-1 #KN\n",
+ "F_2=(F_3*L_AC-F_G*L_AG)*L_AG**-1\n",
+ "\n",
+ "#Result\n",
+ "print\"Reactions are:R_A\",round(R_A,2),\"KN\"\n",
+ "print\" :R_B\",round(R_B,2),\"KN\"\n",
+ "print\"Forces in Members are:F_1\",round(F_1,2),\"KN\"\n",
+ "print\" :F_2\",round(F_2,2),\"KN\"\n",
+ "print\" :F_3\",round(F_3,2),\"KN\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Reactions are:R_A 10.0 KN\n",
+ " :R_B 11.0 KN\n",
+ "Forces in Members are:F_1 7.5 KN\n",
+ " :F_2 1.0 KN\n",
+ " :F_3 7.5 KN\n"
+ ]
+ }
+ ],
+ "prompt_number": 30
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 6.14,Page No.149"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "L_CH=5 #m\n",
+ "L_DE=4.5 #m\n",
+ "L_AE=L_EC=L_FB=4 #m\n",
+ "L_AB=16 #m\n",
+ "F=80 #KN\n",
+ "v=0.5 #m\n",
+ "\n",
+ "#Calculations\n",
+ "\n",
+ "#Reactions\n",
+ "R_B=F*(L_AE+L_EC+L_FB)*L_AB**-1 #m\n",
+ "R_A=F-R_B #KN\n",
+ "\n",
+ "#Forces\n",
+ "F1=R_A*L_AE*L_DE**-1 #KN\n",
+ "\n",
+ "theta=arctan(L_DE*L_EC**-1)*(180*pi**-1)\n",
+ "alpha=arctan(v*L_AE**-1)*(180*pi**-1) #Degrees\n",
+ "beta=alpha+theta #Degrees\n",
+ "\n",
+ "L_CD=(L_DE**2+L_EC**2)**0.5 #m\n",
+ "L_CL=L_CD*sin(beta*pi*180**-1) #m\n",
+ "\n",
+ "F3=R_A*(L_AE+L_EC)*L_CL**-1 #KN\n",
+ "F2=-(F3*sin(alpha*pi*180**-1)-R_A)*(sin(theta*pi*180**-1))**-1\n",
+ "\n",
+ "\n",
+ "#Result\n",
+ "print\"Forces in Members are:F1\",round(F1,2),\"KN\"\n",
+ "print\" :F2\",round(F2,2),\"KN\"\n",
+ "print\" :F3\",round(F3,2),\"KN\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Forces in Members are:F1 17.78 KN\n",
+ " :F2 21.41 KN\n",
+ " :F3 32.25 KN\n"
+ ]
+ }
+ ],
+ "prompt_number": 31
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 6.15,Page No.151"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "L_EC=L_FD=L_BD=L_AC=L_OH=2 #m\n",
+ "L_AB=L_CD=L_EF=4 #m\n",
+ "F=20 #KN\n",
+ "H=20 #KN\n",
+ "theta=90\n",
+ "alpha=45\n",
+ "\n",
+ "#Calculations\n",
+ "\n",
+ "#Reactios\n",
+ "R_B=(H*L_EC+F*(L_FD+L_BD)+F*(L_AC+L_EC+L_OH))*L_AB**-1\n",
+ "R_A=0-R_B #KN\n",
+ "H_A=3*F #All horizontal Forces\n",
+ "\n",
+ "#Forces\n",
+ "F_BD=(F*L_FD+F*(L_FD+L_BD))*L_AB**-1 #KN\n",
+ "F_AC=(F*L_FD+H*(L_OH+L_EC))*L_AB**-1\n",
+ "F_BG=(R_B-F_BD)*(cos(alpha*pi*180**-1))**-1 #KN\n",
+ "F_BA=F_BG*sin(alpha*pi*180**-1)\n",
+ "F_AG=(H_A-F_BA)*(cos(alpha*pi*180**-1))**-1\n",
+ "\n",
+ "\n",
+ "#Result\n",
+ "print\"Forces in the Members are:F_BD\",round(F_BD,2),\"KN\"\n",
+ "print\" :F_AC\",round(F_AC,2),\"KN\"\n",
+ "print\" :F_BG\",round(F_BG,2),\"KN\"\n",
+ "print\" :F_BA\",round(F_BA,2),\"KN\"\n",
+ "print\" :F_AG\",round(F_AG,2),\"KN\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Forces in the Members are:F_BD 30.0 KN\n",
+ " :F_AC 30.0 KN\n",
+ " :F_BG 42.43 KN\n",
+ " :F_BA 30.0 KN\n",
+ " :F_AG 42.43 KN\n"
+ ]
+ }
+ ],
+ "prompt_number": 32
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 6.16,Page No.153"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Initilization of Variables\n",
+ "\n",
+ "F_E=F_A=F_D=1 #KN\n",
+ "F_C=2 #KN\n",
+ "L_AE=L_EF=L_FB=4 #m\n",
+ "L_AB=12 #m\n",
+ "theta=60 \n",
+ "alpha=30 #degrees\n",
+ "\n",
+ "#Calculations\n",
+ "\n",
+ "L_AC=L_AE*cos(alpha*pi*180**-1)\n",
+ "L_AD=F_C*L_AC #m\n",
+ "\n",
+ "#Reactions\n",
+ "R_B=(F_C*L_AC+F_A*L_AD+F_D*L_AE)*L_AB**-1\n",
+ "\n",
+ "#Forces\n",
+ "F_DG=(R_B*L_AE)*(L_FB*sin(alpha*pi*180**-1))**-1\n",
+ "F_FE=R_B*cos(alpha*pi*180**-1)*(sin(alpha*pi*180**-1))**-1\n",
+ "F_DF=0 #KN \n",
+ "\n",
+ "\n",
+ "#Result\n",
+ "print\"Force in members:DG\",round(F_DG,2),\"KN\"\n",
+ "print\" :FE\",round(F_FE,2),\"KN\"\n",
+ "print\" :DF\",round(F_DF,2),\"KN\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Force in members:DG 2.98 KN\n",
+ " :FE 2.58 KN\n",
+ " :DF 0.0 KN\n"
+ ]
+ }
+ ],
+ "prompt_number": 33
+ }
+ ],
+ "metadata": {}
+ }
+ ]
+} \ No newline at end of file
generated by cgit (git 2.34.1) at 2025-01-09 01:56:15 +0000