Vibration & Shock Test Report · This revision of the test report does not replace the original test report; this revision of the test report is a supplement to the original test

Nebraska Center for Excellence in Electronics4740 Discovery DriveLincoln, NE 68521-5376Phone: 402.472.5880Fax: 402.472.5881

Nebraska Center for Excellence in Electronics4740 Discovery DriveLincoln, NE 68521-5376Phone: 402.472.5880Fax: 402.472.5881

The Nebraska Center for Excellence in Electronics (NCEE) authorizes the above named company to reproduce this report provided it is reproduced in its entirety for use by the company’s employees only.

Any use that a third party makes of this report, or any reliance on or decisions made based on it, are the responsibility of such third parties. NCEE accepts no responsibility for damages, if any, suffered by any third party as a result of decisions made or actions based on this report. This report applies only to the items tested.

This accredited test laboratory maintains A2LA accreditation to ISO/IEC 17025 for the specific test(s) listed in A2LA Certificate # 1953-01 and meets the relevant quality systems requirements of ISO 9001. The test(s) results included in this

report, however, are not covered by this accreditation

Vibration & Shock Test Report Company: Crystal Group 850 Kacena Road Hiawatha, IA 52233-1204 Contact: Richard Ridenour Product/EUT: RS363SF Rack-Mount Computer Test Report No.: R110309-60-03C Approved By: Robert McElroy __________________________ Senior Test Engineer

Report Date: 17 December 2009 Number of Pages: 20

NCEE Labs R110309-60-03C

Page 2 of 20

Revision Date Revision Notes/Comments

A 2009-12-05 In order to reduce test report file size, the following changes were made to this revision of the test report: • Section 3.1.6: Number of photographs was reduced from 12

photographs to 6 photographs • Section 3.1.7: Random Vibration Test Response Plots were

removed and only 1 Random Vibration plot was retained • Section 3.2.7: Operating Shock Test Response Plots were

removed and only 2 Operating Shock plots were retained • Section 3.3.7: Crash Safety Shock Test Response Plots were

removed and only 2 Crash Safety Shock plots were retained This revision of the test report does not replace the original test report; this revision of the test report is a supplement to the original test report (dated 05 December 2009)

B 2009-12-17 The full version of the test report (R110309-60-03) was updated to include the completion of the Crash Safety Shock Test.

C 2009-12-17 The reduced file size version of the test report (R110309-60-03A) was updated to include the completion of the Crash Safety Shock Test.


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Table of Contents 1.0 Summary of Test Results --------------------------------------------------------------------- 4

2.0 Description of Equipment Under Test (EUT) -------------------------------------------- 4

2.1 RS363SF Rack Mount Computer -------------------------------------------------- 4

2.1.2 Configuration As Tested ---------------------------------------------------- 4

3.0 Test Description & Results ------------------------------------------------------------------- 5

3.1 Random Vibration Test -------------------------------------------------------------- 5

3.1.1 Test Description -------------------------------------------------------------- 5

3.1.2 Date(s) of Testing ------------------------------------------------------------- 6

3.1.3 Standard Laboratory Conditions ----------------------------------------- 6

3.1.4 Test Equipment Used -------------------------------------------------------- 6

3.1.5 Test Results -------------------------------------------------------------------- 6

3.1.6 Representative Photographs ----------------------------------------------- 7

3.1.7 Representative Vibration Plot -------------------------------------------- 11

3.2 Operating Shock Test --------------------------------------------------------------- 13

3.2.1 Test Description ------------------------------------------------------------- 13

3.2.2 Date(s) of Testing ------------------------------------------------------------ 14

3.2.3 Standard Laboratory Conditions ---------------------------------------- 14

3.2.4 Test Equipment Used ------------------------------------------------------- 14

3.2.5 Test Results ------------------------------------------------------------------- 14

3.2.6 Representative Photographs ---------------------------------------------- 14

3.2.7 Representative Shock Plots ----------------------------------------------- 14

3.3 Crash-Safety Shock Test ------------------------------------------------------------ 17

3.3.1 Test Description ------------------------------------------------------------- 17

3.3.2 Date(s) of Testing ------------------------------------------------------------ 18

3.3.3 Standard Laboratory Conditions ---------------------------------------- 18

3.3.4 Test Equipment Used ------------------------------------------------------- 18

3.3.5 Test Results ------------------------------------------------------------------- 18

3.3.6 Representative Photographs ---------------------------------------------- 18

3.3.7 Representative Shock Plots ----------------------------------------------- 18


Page 4 of 20

1.0 Summary of Test Results Table 1

Test Name Test Procedure/Standard Results†

Random Vibration Test MIL-STD-810G, Method 514.6, Procedure I, Category 7, Figure

514.6C-5, C17 Profile compliant

Operating Shock Test MIL-STD-810G, Method 516.6,

Procedure I, Classical Shock Pulses compliant

Crash Safety Shock Test MIL-STD-810G, Method 516.6,

Procedure V, Classical Shock Pulse compliant

† Test results shown in this table are only a summary of the test results described in this test report. 2.0 Description of Equipment Under Test (EUT)

2.1 RS363SF Rack Mount Computer

• The RS363SF Rack Mount Computer is a server computer housed in an enclosure designed to fit in a standard 19 inch electronics rack. The RS363SF Rack Mount Computer enclosure uses 3 standard rack units (3U) of space in a standard 19 inch electronics rack.

2.1.2 Configuration As Tested

• The RS363SF Rack Mount Computer was subjected to this testing in the configuration provided by the customer.

• NCEE made no modifications to this test sample prior to the

performance of this testing project or during the performance of this testing project.


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3.0 Test Description & Results 3.1 Random Vibration Test

3.1.1 Test Description

• For the X-axis & the Y-axis, the customer’s test fixture was bolted to the dynamics test system slip table, which was bolted to the dynamics test system exciter via an interface adapter. For the Z-axis, the customer’s test fixture was bolted to a head-expander, which was bolted directly to the dynamics test system exciter. The test sample was installed in the customer’s test fixture.

• The vibration control signal for the X-axis & the Y-axis was

achieved with the use of one control accelerometer, which was mounted on the front-center of the dynamics test system slip table. The vibration control signal for the Z-axis was achieved with the use of one control accelerometer, which was mounted under the head expander table, as near to the center of the head expander as practical. The Z-axis control accelerometer was mounted in an orientation that swapped the positive and negative polarities of the accelerometer, so the dynamics control software was adjusted to account for the inverted control accelerometer.

• In each axis of this test, one tri-axial response measurement

accelerometer was mounted to the rear-center of the top of the case, and a second tri-axial response measurement accelerometer was mounted to the front-center of the top of the case.

• The vibration controller was programmed with the broadband

random vibration profile listed in Table 2 on the next page. • The customer placed the test sample into its operating state,

and the operating test sample was exposed to the specified vibration testing for 1 hour in each axis.

• The customer monitored the test sample for proper operation

during the performance of this test and upon the completion of this test.


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Table 2

Frequency Acceleration

Spectral Density

5 Hz 0.005 g²/Hz

66.897 Hz 0.005 g²/Hz

150 Hz 0.025 g²/Hz

500 Hz 0.025 g²/Hz

2,000 Hz 0.0016 g²/Hz

3.1.2 Date(s) of Testing

• This test was performed between November 17th, 2009 and November 19th, 2009.

3.1.3 Standard Laboratory Conditions

• Laboratory temperature is maintained at 20 °C ± 3 °C. • Laboratory humidity is maintained at 40% R.H. ± 15% R.H. • Laboratory barometric pressure is maintained at 30 inches of

mercury (in.Hg) ± 0.5 inches of mercury (in.Hg). 3.1.4 Test Equipment Used

• The test equipment used for the performance of this test is shown below in Table 3.

Table 3

Test Equipment Name Manufacturer Model Number Serial Number Calibration Date Vibration Control

System Vibration Research VR8500 15add9 May 26, 2009

Vibration Control System

Vibration Research VR8500 1def24 July 16, 2009

Accelerometer Dytran Instruments 3273A4T 269 July 31, 2009 Accelerometer Dytran Instruments 3273A4T 270 July 31, 2009 Accelerometer PCB Piezotronics J353B34 65584 June 10, 2009 Accelerometer PCB Piezotronics J353B34 65587 June 10, 2009

3.1.5 Test Results

• The customer did not report any out of specification conditions during the performance of this test or upon the completion of this test.


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3.1.6 Representative Photographs • Representative photographs begin on the next page.


Page 8 of 20

Photograph No. 1 - X-axis

Photograph No. 2 - X-axis


Page 9 of 20

Photograph No. 3 - Y-axis

Photograph No. 4 - Y-axis


Page 10 of 20

Photograph No. 5 - Z-axis

Photograph No. 6 - Z-axis


Page 11 of 20

3.1.7 Representative Vibration Plot • A representative vibration plot is shown on the next page.


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Random Vibration Test

5 200010 100 1000-43x10

-12x10

-31x10

-21x10

-11x10

Frequency (Hz)

Acc

eler

atio

n (G

²/H

z)Acceleration Profile

Demand

Control


Page 13 of 20

3.2 Operating Shock Test 3.2.1 Test Description


• The shock control signal for the X-axis & the Y-axis was

achieved with the use of one control accelerometer, which was mounted on the front-center of the dynamics test system slip table. The shock control signal for the Z-axis was achieved with the use of one control accelerometer, which was mounted under the head expander table, as near to the center of the head expander as practical. The Z-axis control accelerometer was mounted in an orientation that swapped the positive and negative polarities of the accelerometer, so the dynamics control software was adjusted to account for the inverted control accelerometer.



• The shock pulse was a terminal-peak sawtooth pulse with an 11

millisecond duration and a peak amplitude of 20 G. • The customer placed the test sample into its operating state,

and the operating test sample was exposed to the specified shock pulse 3 times in the positive polarity of each axis and 3 times in the negative polarity of each axis. The test sample was allowed to settle for at least 1 second between each shock pulse.

• The customer monitored the test sample for proper operation

during the performance of this test.


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3.2.2 Date(s) of Testing • This test was performed between November 19th, 2009 and

November 20th, 2009. 3.2.3 Standard Laboratory Conditions



• The test equipment used for the performance of this test is shown in Table 3 in Section 3.1.4 of this test report.

3.2.5 Test Results

• The customer did not report any out of specification conditions during the performance of this test or upon the completion of this test.

3.2.6 Representative Photographs

• Representative photographs of this test are shown in Section 3.1.6 of this test report.

3.2.7 Representative Shock Plots

• Representative shock plots begin on the next page.


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Operating Shock Test - Positive Polarity

-60 -40 -20 0 20 40 60 80-15

-10

-5

0

5

10

15

20

25

30

Time (ms)

Acc

eler

atio

n (G

)Acceleration

Demand

Control


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Operating Shock Test - Negative Polarity

-60 -40 -20 0 20 40 60 80-30

-25

-20

-15

-10

-5

0

5

10

15

Time (ms)

Acc

eler

atio

n (G

)Acceleration

Demand

Control


Page 17 of 20

3.3 Crash-Safety Shock Test 3.3.1 Test Description


• The shock control signal for the X-axis & the Y-axis was

achieved with the use of one control accelerometer, which was mounted on the front-center of the dynamics test system slip table. The shock control signal for the Z-axis was achieved with the use of one control accelerometer, which was mounted under the head expander table, as near to the center of the head expander as practical. The Z-axis control accelerometer was mounted in an orientation that swapped the positive and negative polarities of the accelerometer, so the dynamics control software was adjusted to account for the inverted control accelerometer.



• The shock pulse was a terminal-peak sawtooth pulse with an 11

millisecond duration and a peak amplitude of 40 G. • The customer placed the test sample into its operating state,

and the operating test sample was exposed to the specified shock pulse 3 times in the positive polarity of each axis and 3 times in the negative polarity of each axis. The test sample was allowed to settle for at least 1 second between each shock pulse.

• The customer monitored the test sample for proper operation &

structural integrity during the performance of this test.


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3.3.2 Date(s) of Testing • This test was performed between November 19th, 2009 and

November 20th, 2009. 3.3.3 Standard Laboratory Conditions



• The test equipment used for the performance of this test is shown in Table 3 in Section 3.1.4 of this test report.

3.3.5 Test Results

• The customer did not report any out of specification structural or operational issues during the performance of the Z-axis or X-axis of this test or upon the completion of the Z-axis or X-axis of this test.

• NCEE Labs personnel did not observe any out of specification

structural or operational issues during the performance of the Y-axis of this test. During post-test inspection, it was observed that the fan blade of the chassis fan behind the power supply had come loose. No other out of specification structural or operational issues were observed upon the completion of the Y-axis of this test.

3.3.6 Representative Photographs

• Representative photographs of this test are shown in Section 3.1.6 of this test report.

3.3.7 Representative Shock Plots

• Representative shock plots begin on the next page.


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Crash Safety Shock Test - Positive Polarity

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40

50

60

Time (ms)

Acc

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)Acceleration

Demand

Control


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Crash Safety Shock Test - Negative Polarity

-60 -40 -20 0 20 40 60 80-60

-50

-40

-30

-20

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0

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Time (ms)

Acc

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Demand

Control

Documents

Vibration & Shock Test Report · This revision of the test report does not replace the original test report; this revision of the test report is a supplement to the original test