Engineering Report Crash Safety (Impulse) Shock Test. Crystal Group, Inc. for. Prepared by. Phillip M. Toftely, Test Engineer.

Transcription

1 Engineering Report Crash Safety (Impulse) Shock Test for Crystal Group, Inc. Prepared by Phillip M. Toftely, Test Engineer Approved by David M. Gillen, Vice President This document shall not be reproduced except in full, without the express written authorization of Environ Laboratories LLC. In the event this document is provided to the customer in any format that may be modified or copied in any part, no modifications, changes, or additions to this report, nor any summary hereof, shall be permitted in any manner. All original content of this document shall be considered one entire report. Environ Laboratories LLC shall not be liable to the customer or any third party for unauthorized modification or misuse of this document Girard Avenue South Minneapolis, MN FAX

2 Revision history Revision Total number of pages Date Description February 12, 2013 Original ENVIRON LABORATORIES LLC Page i of i

3 Prepared for: Crystal Group, Inc. Attention: Mr. Shawn Castillo Test dates Start: Completion: 1/28/2013 2/6/2013 Environ test number: Purchase order numbers: Purchase date: and /4/2013 and 2/7/2013 Crash Safety (Impulse) Shock Test 1.0 Abstract 1.1 Object Subject two Ruggedized Computer Servers to a Crash Safety (Impulse) Shock Test as specified in customer s dated October 30, 2012 through February 7, 2013, and RTCA/DO-160F, dated December 6, 2007, Section 7, Procedure I, Paragraph 7.3.1, as requested in Crystal Group, Inc. purchase order , dated January 4, 2013, and purchase order , dated February 7, Conclusions Post-test visual inspection of the test units revealed no evidence of physical damage. The test units remained securely mounted, and stayed in place on the test fixture. No loose parts were ejected from the test units. 2.0 Unit(s) tested Table 2-1: Units tested Manufacturer Device Model/part number Crystal Group, Inc. Two (2) Ruggedized Computer Servers RS378L24, RS235 Serial number , The results of this test apply only to the units identified in this Engineering Report by device identifier and model / part number, or serial number. ENVIRON LABORATORIES LLC Page 1 of 26

4 3.0 Test requested Subject two Ruggedized Computer Servers to a Crash Safety (Impulse) Shock Test as specified in customer s dated October 30, 2012 through February 7, 2013, and RTCA/DO-160F, dated December 6, 2007, Section 7, Procedure I, Paragraph Crash Safety (Impulse) Shock Secure the unit under test to the shock table by means of a rigid test fixture. Use the mounting means intended for use in service installations. Apply one shock in each direction of the three mutually perpendicular axes, for a total of six shocks, as follows: Pulse shape... Terminal-peak sawtooth Shock level g peak acceleration Pulse duration milliseconds After application of the six shocks, bending and distortion shall be permitted. There shall be no failure of the mounting attachments, and the test unit shall remain in place on the test fixture. ENVIRON LABORATORIES LLC Page 2 of 26

5 4.0 Instrumentation, procedure, and results 4.1 Instrumentation All instrumentation is calibrated regularly by instruments directly traceable to the National Institute of Standards and Technology, and in accordance with MIL-I-45208A, ANSI/NCSL Z , and ISO/IEC 17025: Table 4-1: Instrumentation list Equipment Number Description Manufacturer Model Number Last Calibration Due Calibration Range Charge Amplifier Endevco 2721B 5/17/2012 5/17/ to 1100 pc/g; 3 Hz to 10 khz Power Supply Endevco 4221A 5/17/2012 5/17/2013 ± 15 Vdc Accelerometer Endevco 2220C 2/22/2012 2/22/2013 Vib 0 to 1000 g; Shock 0 to 5000 g; 10 Hz to 10 khz Shock Machine L.A.B. SPA N/A N/A 0 to 750 g, 1 to 100 msec, 400 lb load max CAT Shock Test System GHI Systems Triad Mini- CAT Shock Tester 5/17/2012 5/17/2013 Amplitude: 10 Vdc max; Horizontal: 0.13 to 1 ksec max ENVIRON LABORATORIES LLC Page 3 of 26

6 4.2 Procedure Trial drops were conducted to produce the specified shock input of 20 g, 11 milliseconds, and terminal-peak sawtooth waveform. The RS378L24 test unit was mounted to the shock machine table. One shock was then applied in each direction of the three major orthogonal axes, for a total of six shocks. The second test unit, RS235, was also subjected to this test. The same shock level was employed. One shock was applied in each direction of the three major orthogonal axes, for a total of six shocks. The test units were visually inspected after these shock tests. Photographs of all test setups were obtained, as testing progressed. 4.3 Results Post-test visual inspection of the test units revealed no evidence of physical damage. The test units remained securely mounted, and stayed in place on the test fixture. No loose parts were ejected from the test units. The test units were returned to Crystal Group, Inc. The test data and photographs obtained during these tests are included in the following pages. ENVIRON LABORATORIES LLC Page 4 of 26

7 Figure 4-1: Crash Safety (Impulse) Shock Test data sheet for the RS378L24 ENVIRON LABORATORIES LLC Page 5 of 26

8 Figure 4-2: Crash Safety (Impulse) Shock Test, RS378L24 axis 1 (Z1) ENVIRON LABORATORIES LLC Page 6 of 26

9 Figure 4-3: Crash Safety (Impulse) Shock Test, RS378L24 axis 2 (Z2) ENVIRON LABORATORIES LLC Page 7 of 26

10 Figure 4-4: Crash Safety (Impulse) Shock Test, RS378L24 axis 3 (X1) ENVIRON LABORATORIES LLC Page 8 of 26

11 Figure 4-5: Crash Safety (Impulse) Shock Test, RS378L24 axis 4 (X2) ENVIRON LABORATORIES LLC Page 9 of 26

12 Figure 4-6: Crash Safety (Impulse) Shock Test, RS378L24 axis 5 (Y1) ENVIRON LABORATORIES LLC Page 10 of 26

13 Figure 4-7: Crash Safety (Impulse) Shock Test, RS378L24 axis 6 (Y2) ENVIRON LABORATORIES LLC Page 11 of 26

14 Photograph 4-1: RS378L24 axis 1 (Z1) Photograph 4-2: RS378L24 axis 2 (Z2) ENVIRON LABORATORIES LLC Page 12 of 26

15 Photograph 4-3: RS378L24 axis 3 (X1) Photograph 4-4: RS378L24 axis 4 (X2) ENVIRON LABORATORIES LLC Page 13 of 26

16 Photograph 4-5: RS378L24 axis 5 (Y1) Photograph 4-6: RS378L24 axis 6 (Y2) ENVIRON LABORATORIES LLC Page 14 of 26

17 Photograph 4-7: Test unit identification label ENVIRON LABORATORIES LLC Page 15 of 26

18 Figure 4-8: Crash Safety (Impulse) Shock Test data sheet for the RS235 ENVIRON LABORATORIES LLC Page 16 of 26

19 Figure 4-9: Crash Safety (Impulse) Shock Test, RS235 axis 1 (Z1) ENVIRON LABORATORIES LLC Page 17 of 26

20 Figure 4-10: Crash Safety (Impulse) Shock Test, RS235 axis 2 (Z2) ENVIRON LABORATORIES LLC Page 18 of 26

21 Figure 4-11: Crash Safety (Impulse) Shock Test, RS235 axis 4 (X2) NOTE. Axes 3 and 4 test sequence was reversed due to the mounting method. ENVIRON LABORATORIES LLC Page 19 of 26

22 Figure 4-12: Crash Safety (Impulse) Shock Test, RS235 axis 3 (X1) NOTE. Axes 3 and 4 test sequence was reversed due to the mounting method. ENVIRON LABORATORIES LLC Page 20 of 26

23 Figure 4-13: Crash Safety (Impulse) Shock Test, RS235 axis 5 (Y1) ENVIRON LABORATORIES LLC Page 21 of 26

24 Figure 4-14: Crash Safety (Impulse) Shock Test, RS235 axis 6 (Y2) ENVIRON LABORATORIES LLC Page 22 of 26

25 Photograph 4-8: RS235 axis 1 (Z1) Photograph 4-9: RS235 axis 2 (Z2) ENVIRON LABORATORIES LLC Page 23 of 26

26 Photograph 4-10: RS235 axis 4 (X2) Photograph 4-11: RS235 axis 3 (X1) ENVIRON LABORATORIES LLC Page 24 of 26

27 Photograph 4-12: RS235 axis 5 (Y1) Photograph 4-13: RS235 axis 6 (Y2) ENVIRON LABORATORIES LLC Page 25 of 26

28 Photograph 4-14: Test unit identification label. ENVIRON LABORATORIES LLC Page 26 of 26