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LAT-TD-046181 GLAST LAT Project Tracker Inner Shipping Container Analysis and Test Results Tracker Inner Shipping Container Analysis and Test Results August.

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Presentation on theme: "LAT-TD-046181 GLAST LAT Project Tracker Inner Shipping Container Analysis and Test Results Tracker Inner Shipping Container Analysis and Test Results August."— Presentation transcript:

1 LAT-TD-046181 GLAST LAT Project Tracker Inner Shipping Container Analysis and Test Results Tracker Inner Shipping Container Analysis and Test Results August 20, 2003 Michael Opie

2 LAT-TD-046182 GLAST LAT Project Side Drop Qualification and Vertical Lift Proof Test Loads Qualification for side loading due to side drop at 17.6 g Proof test for vertical lift load at 2g

3 LAT-TD-046183 GLAST LAT Project Side Drop Load

4 LAT-TD-046184 GLAST LAT Project Vertical Drop Load

5 LAT-TD-046185 GLAST LAT Project Side Drop Load Simulation Qualification for side loading associated with side drop at 17.6 g 9475 N (2130 lbf)

6 LAT-TD-046186 GLAST LAT Project Side Drop Load Simulation Loading Procedure 7901 N (1776 lbf)9475 N (2130 lbf) Load up to 7901 N without support at the end. Continue loading up to 9475 N with support at the end.

7 LAT-TD-046187 GLAST LAT Project Test predictions: FEM Mesh Node 70000 Node 70001 Node 90000

8 LAT-TD-046188 GLAST LAT Project Test predictions: Von Mises Stress Stress for load case 2Stress for load case 1 MS = 276/1.4/40.9 - 1 = 3.82MS = 276/1.4/36.4 - 1 = 4.42

9 LAT-TD-046189 GLAST LAT Project Test predictions: Applied Loads

10 LAT-TD-0461810 GLAST LAT Project Test predictions: Applied Loads –Load 1 is applied as an enforced displacement. This produces a force of 7901 N at the center of the container (node 70000) a moment of 2917 N-m at the support (node 90000). –Load 2 is applied as a force of 1728 N at the free end of the container. This increases the load at the center to 9474 N but reduces the moment at the support to 2238 N-m. –These are thus the required load combinations to produce a moment of 2239 N-m at the support, 639 N-m at the center.

11 LAT-TD-0461811 GLAST LAT Project Margins of Safety – Side Load LC 1

12 LAT-TD-0461812 GLAST LAT Project Margins of Safety – Side Load LC 2

13 LAT-TD-0461813 GLAST LAT Project Vertical Lift Load Proof Test The following calculation shows the amount of weight that needs to be added for the proof load of the tracker shipping container vertical lift. Mass of TKR and Base Plate = (31.8 kg + 5.45 kg)*1.10 = 41 kg Mass of Ship Container and Cable Hold. Plate = (27.9 kg + 3.03 kg)*1.10 = 34 kg Additional Mass for 2g lift = 2*(41 kg) + 34 kg = 116 kg = 256 lbf So we need to add an additional 256 lbf for the vertical proof load. Procedure Add 256 lbf (1139 N) of ballast. Perform 4 point lift from corners. Perform 1 point lift from center.

14 LAT-TD-0461814 GLAST LAT Project Test predictions: Vertical Lift FEM Mesh

15 LAT-TD-0461815 GLAST LAT Project Test predictions: Vertical Lift Von Mises Stress Stress for vertical load case 2Stress for vertical load case 1 MS = 276/1.4/16.5 - 1 = 10.9MS = 276/1.4/20.8 - 1 = 8.48

16 LAT-TD-0461816 GLAST LAT Project Margins of Safety – Vertical Lift LC 1

17 LAT-TD-0461817 GLAST LAT Project Margins of Safety – Vertical Lift LC 2

18 LAT-TD-0461818 GLAST LAT Project Calculations Showing Helicoil Capability

19 LAT-TD-0461819 GLAST LAT Project Minimum Margin of Safety Summary

20 LAT-TD-0461820 GLAST LAT Project Side Load Test Results Test equipment weighed 130 lbf. So the target loads where reduced to the following: Load Case 1 = 1646 lbf (7322 N) Load Case 2 = 2000 lbf (8896 N) Actual loads achieved during test where: Load Case 1 = 1725 lbf (7673 N) Load Case 2 = 2150 lbf (9564 N) The test resulted in no anomalies. Test deemed successful.

21 LAT-TD-0461821 GLAST LAT Project Cable Holding Plate Mounted to Test Fixture

22 LAT-TD-0461822 GLAST LAT Project Displacement Gage to Indicate Slip Relative to Test Fixture

23 LAT-TD-0461823 GLAST LAT Project Set-up for Side Load Case 1

24 LAT-TD-0461824 GLAST LAT Project Application of Force via Turn-buckle for Side Load Case 1

25 LAT-TD-0461825 GLAST LAT Project View from Top

26 LAT-TD-0461826 GLAST LAT Project Application of Force via Hydraulic Lift for Side Load Case 2

27 LAT-TD-0461827 GLAST LAT Project Vertical Lift Load Test Results Actual added mass simulator load was 260 lbf (1157 N) versus required 256 lbf (1139 N). The test resulted in no anomalies. Test deemed successful.

28 LAT-TD-0461828 GLAST LAT Project Proof Test for Vertical Lift Load Case 1

29 LAT-TD-0461829 GLAST LAT Project Proof Test for Vertical Lift Load Case 1


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