Falcon Towbar Engineering Certification



     
May 10, 2002
Roadmaster Inc.
Falcon 2 Tow Bar
(ATM) 6000# Towing Capacity

In accordance with Australian Design Rule 62/01.
Section 14.2.2

Linear Static Test performed utilizing MSCNastran FEA Analysis Software.

Load 1

Longitudinal Tension and Compression (Linear Static)
1.50 x 9.81 m/s? x 2721.08 kg = 40040.69 N
(1.50 x 32.17 ft/s? x 186.50 slugs = 8999.55 Lbs.)

Results

Total Translation / Deformation = 0.0008 m (0.0350 in.)

Contour Legend / Solid Mean Stress
See VIEW 13 / VIEW 14 / VIEW 15
Range / 1.45 x 105 to –1.83 x 105 kPa (21064 to –26669 psi)

View 13 View 14 View 15

   
		
		
Contour Legend Conversions:

psi			     kPa
21064			1.45 x 105
18080			1.24 x 105
15097			1.04 x 105
12114			8.35 x 104
9131			6.29 x 104
6147			4.23 x 104
3164			2.18 x 104
180.8			1.24 x 103
        -2802		        -1.93 x 104
        -5786		        -3.99 x 104
        -8769		        -6.04 x 104
        -11752		        -8.10 x 104
        -14736		        -1.01 x 105
        -17719		        -1.22 x 105
        -20702		        -1.42 x 105
        -23685		        -1.63 x 105
        -26669		        -1.83 x 105
Load 1  Results (Con’t.)

Contour Legend / Solid Von Mises Stress
See VIEW 16 / VIEW 17 / VIEW 18
Range / 5.59 x 105 to 1.30 x 102 kPa (81098 to 18.91 psi)

View 16 View 17 View 18

   
			
		
Contour Legend Conversions:

psi			    kPa
81098			5.59 x 105
76031			5.24 x 105
70963			4.89 x 105
65896			4.54 x 105
60828			4.19 x 105
55761			3.84 x 105
50693			3.49 x 105
45626			3.14 x 105
40558			2.79 x 105
35491			2.44 x 105
30424			2.09 x 105
25356			1.74 x 105
20289			1.39 x 105
15221			1.04 x 105
10154			7.00 x 104
5086			3.50 x 104
18.91			1.30 x 102




Load 2

Transverse Thrust @ 45? (Linear Static)
0.50 x 9.81 m/s? x 2721.08 kg = 13346.89 N
(0.50 x 32.17 ft/s? x 186.50 slugs = 2999.85 Lbs.)

Results

Total Translation / Deformation = 0.0043 m (0.173 in.)

Contour Legend / Solid Mean Stress
See VIEW 19 / VIEW 20 / VIEW 21
Range / 1.12 x 105 to –1.47 x 105 kPa (16302 to -21408 psi)

View 19 View 20 View 21

   
			
Contour Legend Conversions:

psi			    kPa
16302			1.12 x 105
13945			9.61 x 104
11589			7.99 x 104
9232			6.36 x 104
6875			4.74 x 104
4518			3.11 x 104
2161			1.49 x 104
        -195.9		        -1.35 x 103
        -2553		        -1.76 x 104
        -4910		        -3.38 x 104
        -7267		        -5.01 x 104
        -9623		        -6.63 x 104
        -11980		        -8.26 x 104
        -14337		        -9.88 x 104
        -16694		        -1.15 x 105
        -19051		        -1.31 x 105
        -21408		        -1.47 x 105

Load 2  Results

Contour Legend / Solid Von Mises Stress
See VIEW 22 / VIEW 23 / VIEW 24
Range / 5.65 x 105 to 5.25 x 101 kPa (82022 to 7.618 psi)

View 22 View 23 View 24

   
		
Contour Legend Conversions:

psi			    kPa
82022			5.65 x 105
76896			5.30 x 105
71770			4.94 x 105
66645			4.59 x 105
61519			4.24 x 105
56393			3.88 x 105
51267			3.53 x 105
46141			3.18 x 105
41015			2.82 x 105
35889			2.47 x 105
30763			2.12 x 105
25637			1.76 x 105
20511			1.41 x 105
15385			1.06 x 105
10259			7.07 x 104
5134			3.54 x 104
7.618			5.25 x 101



	
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