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| author | kinitrupti | 2017-05-12 18:40:35 +0530 |
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| committer | kinitrupti | 2017-05-12 18:40:35 +0530 |
| commit | 64d949698432e05f2a372d9edc859c5b9df1f438 (patch) | |
| tree | 012fd5b4ac9102cdcf5bc56305e49d6714fa5951 /sample_notebooks/Vedantam Lakshmi Manasa/Mathematical.ipynb | |
| parent | 9c6ab8cbf3e1a84c780386abf4852d84cdd32d56 (diff) | |
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Revised list of TBCs
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diff --git a/sample_notebooks/Vedantam Lakshmi Manasa/Mathematical.ipynb b/sample_notebooks/Vedantam Lakshmi Manasa/Mathematical.ipynb new file mode 100755 index 00000000..a514cecb --- /dev/null +++ b/sample_notebooks/Vedantam Lakshmi Manasa/Mathematical.ipynb @@ -0,0 +1,212 @@ +{
+ "cells": [
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "# Chapter 17:Advanced Electdrical Controls For Fluid Power Systems"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "# Example 17.1 pgno:610"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 1,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "\n",
+ " Results: \n",
+ "\n",
+ " The repeatable error of system is in. 0.00138\n"
+ ]
+ }
+ ],
+ "source": [
+ "# Aim:To determine the system accuracy of electrohydraulic servo system\n",
+ "# Given:\n",
+ "# servo valve gain:\n",
+ "G_SV=0.15; #(in^3/s)/mA\n",
+ "# cylinder gain:\n",
+ "G_cyl=0.20; #in/in^3\n",
+ "# feedback transducer gain:\n",
+ "H=4; #V/in\n",
+ "# weight of load:\n",
+ "W=1000; #lb\n",
+ "# mass of load:\n",
+ "M=2.59; #lb.(s^2)/in\n",
+ "# volume of oil under compression:\n",
+ "V=50; #in^3\n",
+ "# system deadband:\n",
+ "SD=4; #mA\n",
+ "# bulk modulus of oil:\n",
+ "beta1=175000; #lb/in^2\n",
+ "# cylinder piston area:\n",
+ "A=5; #in^2# Solutions:\n",
+ "# natural frequency of the oil,\n",
+ "om_H=A*(((2*beta1)/(V*M))**0.5); #rad/s\n",
+ "# value of open-loop gain,\n",
+ "open_loop=om_H/3; #/s\n",
+ "# amplifier gain,\n",
+ "G_A=open_loop/(G_SV*G_cyl*H); #mA/V\n",
+ "# repeatable error,\n",
+ "RE=SD/(G_A*H); #in\n",
+ "\n",
+ "# Results:\n",
+ "print\"\\n Results: \"\n",
+ "print\"\\n The repeatable error of system is in.\",round(RE,5)"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 17.2 pgno:610"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 2,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "\n",
+ " Results: \n",
+ "\n",
+ " The repeatable error of system is cm. 0.00352\n"
+ ]
+ }
+ ],
+ "source": [
+ "# Aim:To determine the system accuracy of in SI units\n",
+ "# Given:\n",
+ "# servo valve gain:\n",
+ "G_SV=2.46; #(cm**3/s)/mA\n",
+ "# cylinder gain:\n",
+ "G_cyl=0.031; #cm/cm**3\n",
+ "# feedback transducer gain:\n",
+ "H=4; #V/cm\n",
+ "# mass of load:\n",
+ "M=450; #kg\n",
+ "# volume of oil:\n",
+ "V=819; #cm**3\n",
+ "# system deadband:\n",
+ "SD=4; #mA\n",
+ "# bulk modulus of oil:\n",
+ "beta1=1200; #MPa\n",
+ "# cylinder piston area:\n",
+ "A=32.3; #cm**2\n",
+ "from math import ceil\n",
+ "# Solutions:\n",
+ "# natural frequency of the oil,\n",
+ "om_H=(A*10**-4)*(((2*beta1*10**6)/(V*10**-6*M))**0.5); #rad/s\n",
+ "# value of open-loop gain,\n",
+ "open_loop=om_H/3; #/s\n",
+ "# amplifier gain,\n",
+ "G_A=open_loop/(G_SV*G_cyl*H); #mA/V\n",
+ "# repeatable error,\n",
+ "RE=SD/(G_A*H); #cm\n",
+ "# rounding off the above answer,\n",
+ "RE=round(RE)+(round(ceil((RE-round(RE))*100000))/100000); #cm\n",
+ "\n",
+ "# Results:\n",
+ "print\"\\n Results: \"\n",
+ "print\"\\n The repeatable error of system is cm.\",RE"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Chapter 17.3 pgno:612"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 3,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "\n",
+ " Results: \n",
+ "\n",
+ " The tracking error of system is in. 0.104\n",
+ "\n",
+ " The tracking error of system in SI Unit is cm. 0.264\n"
+ ]
+ }
+ ],
+ "source": [
+ "# Aim:Refer Example 14-3 for Problem Description\n",
+ "# Given:\n",
+ "# servo valve current saturation:\n",
+ "I=300.; #mA\n",
+ "# amplifier gain:\n",
+ "G_A=724.; #mA/V\n",
+ "# feedback transducer gain:\n",
+ "H=4.; #V/in\n",
+ "# feedback transducer gain in metric units\n",
+ "H1=1.57; #V/cm# Solutions:\n",
+ "# tracking error,\n",
+ "TE=I/(G_A*H); #in\n",
+ "# tracking error,\n",
+ "TE1=I/(G_A*H1); #cm\n",
+ "\n",
+ "# Results:\n",
+ "print\"\\n Results: \"\n",
+ "print\"\\n The tracking error of system is in.\",round(TE,3)\n",
+ "print\"\\n The tracking error of system in SI Unit is cm.\",round(TE1,3)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "metadata": {
+ "collapsed": true
+ },
+ "outputs": [],
+ "source": []
+ }
+ ],
+ "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
+}
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