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	   "source": [
       "# Chapter 29: GEARBOX"
	   ]
	},
{
		   "cell_type": "markdown",
		   "metadata": {},
		   "source": [
			"## Example 29.1: GB1.sce"
		   ]
		  },
  {
"cell_type": "code",
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"source": [
"// sum 29-1\n",
"clc;\n",
"clear;\n",
"Ts1=16;\n",
"Ts2=18;\n",
"Ts3=20;\n",
"Ts4=25;\n",
"Tr1=64;\n",
"Tr2=63;\n",
"Tr3=70;\n",
"Tr4=50;\n",
"//Let Nr1/Nr2=G1\n",
"G1=1+(Ts1/Tr1);\n",
"//Let Nr1/Ni=G2\n",
"G2=(Ts2/(Tr2*(1-(1/G1)+(Ts2/Tr2))));\n",
"//Let Ni/No=G3 (third gear)\n",
"G3=(1+(Ts3/Tr3))/((Ts3/Tr3)+G2);\n",
"\n",
"//Let Ni/Nr1=G4\n",
"//The ratio calculations are done as above\n",
"G4=1.2857/0.2857;\n",
"//Let Ni/No =G5(second gear)\n",
"G5=-20/70;\n",
"//Let Ni/No=G6(first gear)\n",
"G6=1.2857/0.2857;\n",
"//Let Ni/No=G7(reverse gear)\n",
"G7=-1.7143/0.2857;\n",
"\n",
"  // printing data in scilab o/p window\n",
"  printf('ratio for third gear is %0.3f    ',G3);\n",
"  printf('\n ratio for second gear is %0.4f   ',G5);\n",
"  printf('\n ratio for first gear is %0.1f   ',G6);\n",
"  printf('\n ratio for reverse gear is %0.3f   ',G7);\n",
"  "
   ]
   }
,
{
		   "cell_type": "markdown",
		   "metadata": {},
		   "source": [
			"## Example 29.2: GB2.sce"
		   ]
		  },
  {
"cell_type": "code",
	   "execution_count": null,
	   "metadata": {
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	   "outputs": [],
"source": [
"// sum 29-2\n",
"clc;\n",
"clear;\n",
"//Let reverse speed gear be RSG\n",
"RSG=5.5;\n",
"//Let T5/T6 = Z1\n",
"T1=2;\n",
"//Let T3/T7 = Z2\n",
"Z2=2.75;\n",
"T7=18;\n",
"T3=Z2*T7;\n",
"T3=50;\n",
"//Let T3/T1 =Z3\n",
"Z3=2.5;\n",
"T1=T3/Z3;\n",
"//Let T4/T2 = Z4\n",
"Z4=2.25/2;\n",
"T2=(T1+T3)/(Z4+1);\n",
"T4=T1+T3-T2;\n",
"//Let T5/T6=Z5\n",
"Z5=2;\n",
"T6=(T1+T3)/3;\n",
"T5=(T1+T3)-T6;\n",
"T7=18;\n",
"//let first gear ratio is G1\n",
"G1=50*47/(20*23);\n",
"\n",
"//Let 2nd gear ratio is G2\n",
"G2=37*47/(33*23);\n",
"//Let 3rd gear ratio is G3\n",
"G3=1;\n",
"//Let reverse gear ratio is R\n",
"R=50*47/(18*23);\n",
"\n",
"  // printing data in scilab o/p window\n",
"  printf('T1 is %0.0f    ',T1);\n",
"  printf('\n T2 is %0.0f    ',T2);\n",
"  printf('\n T3 is %0.0f    ',T3);\n",
"  printf('\n T4 is %0.0f    ',T4);\n",
"  printf('\n T5 is %0.0f    ',T5);\n",
"  printf('\n T6 is %0.0f    ',T6);\n",
"  printf('\n T7 is %0.0f    ',T7);\n",
"  printf('\n G1 is %0.3f    ',G1);\n",
"  printf('\n G2 is %0.3f    ',G2);\n",
"  printf('\n G3 is %0.1f    ',G3);\n",
"  printf('\n R is %0.3f    ',R);\n",
"  "
   ]
   }
,
{
		   "cell_type": "markdown",
		   "metadata": {},
		   "source": [
			"## Example 29.3: GB3.sce"
		   ]
		  },
  {
"cell_type": "code",
	   "execution_count": null,
	   "metadata": {
	    "collapsed": true
	   },
	   "outputs": [],
"source": [
"// sum 29-3\n",
"clc;\n",
"clear;\n",
"//Let the constant gear ratio be G\n",
"G=2;\n",
"x=5.5^(1/3);\n",
"G1=1;\n",
"G2=x;\n",
"G3=x*x;\n",
"G4=x^3;\n",
"T7=18;\n",
"T8=T7*(x^3)/2;\n",
"T8=51;\n",
"T5=69/2.558;\n",
"T6=69-27;\n",
"T4=69/1.8825;\n",
"T3=69-T4;\n",
"T1=23;\n",
"T2=46;\n",
"T9=18;\n",
"G1=T2*T8/(T1*T7);\n",
"G2=T2*T6/(T1*T5);\n",
"G3=1;\n",
"G4=-T2*T8/(T1*T9);\n",
"\n",
"  // printing data in scilab o/p window\n",
"  printf('T1 is %0.0f    ',T1);\n",
"  printf('\n T2 is %0.0f    ',T2);\n",
"  printf('\n T3 is %0.0f    ',T3);\n",
"  printf('\n T4 is %0.0f    ',T4);\n",
"  printf('\n T5 is %0.0f    ',T5);\n",
"  printf('\n T6 is %0.0f    ',T6);\n",
"  printf('\n T7 is %0.0f    ',T7);\n",
"  printf('\n T8 is %0.0f    ',T8);\n",
"  printf('\n T9 is %0.0f    ',T9);\n",
"  printf('\n G1 is %0.3f    ',G1);\n",
"  printf('\n G2 is %0.3f    ',G2);\n",
"  printf('\n G3 is %0.3f    ',G3);\n",
"  printf('\n G4 is %0.3f    ',G4);"
   ]
   }
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