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{
"metadata": {
"name": "",
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"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter 12: Structural components of aircraft"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 12.1 Pg.No. 390"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"from __future__ import division\n",
"import math\n",
"\n",
"D=4 #diameter of rivet(mm)\n",
"t_skin=2.5 #thickness of fuselage skin(mm)\n",
"t_strap=1.2 #thickness of straps (mm)\n",
"T=120 #shear stress (N/mm^2)\n",
"A=math.pi*D**2/4 #rivet area\n",
"Pfb=2*A*T\n",
"\n",
"b=Pfb/t_skin/12.5/10+4\n",
"print \"allowable rivet spacing = %2.1f mm \\n\"%(b)"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"allowable rivet spacing = 13.7 mm \n",
"\n"
]
}
],
"prompt_number": 7
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 12.2 Pg.No.392"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"from __future__ import division\n",
"import math\n",
"\n",
"l1=20 #distace between A&D (mm)\n",
"l2=25 #distace between C&D (mm)\n",
"l3=75 #distace between C&force location (mm)\n",
"P=5 #external load(kN)\n",
"r=(l1**2+l2**2)**0.5\n",
"sum_r2=2*l1**2+4*r**2\n",
"\n",
"#eqn 12.6 S=Pe*r/Sum(r2)\n",
"Pe=P*l3\n",
"S=Pe/sum_r2*r\n",
"print \"Resultant shear force in the A and B = %2.2f kN\\n\"%(S)\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Resultant shear force in the A and B = 2.45 kN\n",
"\n"
]
}
],
"prompt_number": 11
},
{
"cell_type": "code",
"collapsed": false,
"input": [],
"language": "python",
"metadata": {},
"outputs": []
}
],
"metadata": {}
}
]
}
|
