RSS QUALIFICATION, ACCEPTANCE, AND AGE SURVEILLANCE

121 Pages·2002·0.82 MB·English

by  Authorized Gateway Customer

APPENDIX 4B
RSS QUALIFICATION, ACCEPTANCE, AND AGE SURVEILLANCE
TEST APPENDIXES
TABLE OF CONTENTS
Introduction To RSS Component Qualification, Acceptance, And Age
Surveillance Test Appendixes...................................................................................................4-75
Appendix 4B1: RSS Component Common Test Requirements..................................................4-77
Appendix 4B2: Antenna System Test Requirements..................................................................4-92
Appendix 4B3: Command Receiver/Decoder Test Requirements..............................................4-95
Appendix 4B4: Battery Test Requirements...............................................................................4-107
Appendix 4B5: Miscellaneous Component Test Requirements................................................4-117
Appendix 4B6: S&A and EED Test Requirements....................................................................4-119
Appendix 4B7: EBW Firing Unit and EBW Test Requirements.................................................4-136
Appendix 4B8: Laser Initiated Ordnance Test Requirements...................................................4-147
Appendix 4B9: ETS and Destruct Charge Test Requirements.................................................4-164
Appendix 4B10: Percussion Activated Device Test Requirements.............................................4-167
Appendix 4B11: Shock and Vibration Isolator Test Requirements..............................................4-172
Appendix 4B12: Transponder Test Requirements......................................................................4-173
Appendix 4B13: Global Positioning System Test Requirements.................................................4-183
Appendix 4B14: Telemetry Data Transmitter Test Requirements...............................................4-192
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Chapter 4: Airborne Range Safety System Documentation, Design, and Test Requirements 31 October 1997
APPENDIX 4B
INTRODUCTION TO RSS COMPONENT QUALIFICATION, ACCEPTANCE,
AND AGE SURVEILLANCE TEST APPENDIXES
4B.1 Introduction to the Appendix The test plan shall indicate the test requirements,
testing approach for each component, related
This appendix provides applicable RSS compo-
special test equipment, facility and system inter-
nent qualification, acceptance, and age surveil-
face requirements. Traceability shall be provided
lance test requirements.
from the specified requirements to the test proce-
4B.2 Organization dures.
The test appendixes are organized into two separate
The test procedures shall cover all operations in
sections with the exceptions of Appendix 4B1 and
enough detail so that there is no doubt as to what is
4B11. The first section presents the environmental
to be done. The pass/fail test criteria shall be deter-
testing sequences. The second section presents the mined prior to the start of every test.
unique test requirements for the given component.
4B.5 Testing Sequence
Where applicable, the purpose, conditions, proce-
dure, and pass/fail criteria for the conduct of the Unless otherwise agreed to by Range Safety, the
unique tests are described to provide guidance to the testing sequences shall conform to those described
Range User. in the test appendixes.
4B.3 Tailoring 4B.6 Retest Requirements
The test requirements of Appendixes 4B1 through In the case of a significant redesign of a component,
all previous qualification tests, including acceptance
4B14 may be tailored to fit the specific hardware
tests, shall be repeated. Where the redesign or
design and application. The tests described in the
rework of the component is very minor, it may be
appendixes are not intended to be fully applicable to
acceptable to Range Safety to only repeat functional
every RSS system or component. Coordination with
testing and the test in which the failure occurred.
Range Safety will permit the application of sound,
technically justified, tailoring criteria. 4B.7 Failure to Meet Component Specifica-
tions
The rationale for all tailoring shall be ultimately
The failure of an RSS component to meet Range
submitted to Range Safety in writing for approval
Safety approved specifications shall be reported to
prior to requesting test plan and test procedure
Range Safety verbally within 72 h and then in
approval by Range Safety. Other additional tests not
writing within 14 calendar days of the date the
contained in these appendixes may be required for
failure is noted. NOTE: Components whose test
new technology and/or unique applications of
data reflect the unit is out-of-family when compared
existing technology.
to other units shall be considered as out of specifi-
cation.
In addition, non-operating environment tests are not
required if it can be shown that the operating test A component that exhibits any sign that a part is
environment includes the non-operating environ- stressed beyond its design limit (cracked circuit
ment. boards, loose connectors and/or screws, bent clamps
and/or screws, worn parts) is considered a failure of
4B.4 Test Plan and Test Procedure Require-
the component even if the component passes the
ments
final functional test.
The Range User shall establish procedures for
If a test discrepancy occurs, the test shall be inter-
performing all required tests in accordance with
rupted, the discrepancy verified, and Range Safety
detailed test plans approved by Range Safety.
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APPENDIX 4B
INTRODUCTION TO RSS COMPONENT QUALIFICATION, ACCEPTANCE,
AND AGE SURVEILLANCE TEST APPENDIXES
shall be verbally notified within 24 h. If the discrep- broken.
ancy is dispositioned as a failure in the item under
4B.8 Testing Prior to Qualification
test, the preliminary failure analysis and appropriate
corrective action plan shall be submitted to Range Prior to the start of qualification testing, the
Safety before testing is resumed. component shall satisfactorily pass the acceptance
test.
The failure analysis shall include the cause of the
4B.9 Test Tolerances
failure, the physics of the failure, and isolation of
the failure to the smallest replaceable item(s). The The test tolerances allowed in Appendixes 4B1
degree of retest shall be determined for each case through 4B14 shall be applied to the nominal test
based upon the nature of the failure. The failure values specified. Unless otherwise specified, the
analysis plan shall be developed and approved by maximum allowable tolerances shown in Table 4B-
Range Safety before the test configuration can be 1 shall apply.
Table 4B-1
Test Tolerances
Temperature ±3°C
Pressure
Above 1.3 x 102 Pascals (1 Torr)
1.3 x 10-1 to 1.3 x 102 Pascals ±10%
(0.001 Torr to 1 Torr) ±25%
Less than 1.3 x 10-1 Pascals
(0.001 Torr) ±80%
Relative Humidity ±5%
Acceleration ±10%
Vibration Frequency ±2%
Sinusoidal Vibration Amplitude ±10%
Random Vibration Power Spectral Density (G2/Hz)
20 to 100 Hz (5 Hz or narrower bands) ±1.5 dB
100 to 500 Hz (25 Hz or narrower bands) ±1.5 dB
±1.5 dB
500 to 2000 Hz (50 Hz or narrower bands)
Sound Pressure Level
1/3 Octave Band ±3.0 dB
Overall ±1.5 dB
Shock Response Spectrum (Q = 10)
+6 dB
1/6 Octave Band Center Frequency
- 3 dB
Amplitude
Static Load ±5%
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Chapter 4: Airborne Range Safety System Documentation, Design, and Test Requirements 31 October 1997
APPENDIX 4B1
RSS COMPONENT COMMON TEST REQUIREMENTS
4B1.1 General Requirements tification tag contains the applicable information as
required by the component specification.
This appendix contains common test requirements
b. Procedure. As applicable, check identification
for all RSS components. Some of the tests may not
tags to verify:
be applicable to all components. For example, the
1. Component name
functional test prior to, during, and after environ-
2. Manufacturer identification
mental exposure is not applicable to the ordnance
3. Date of manufacture
component. Pre- and post-environmental data shall
4. Date of explosive loading for components
be compared for any significant changes.
containing explosives
4B1.2 Product Examination 5. Serial number
4B1.2.1Visual Inspection 6. Part number
7. Shelf life
a. Purpose. To ensure that good workmanship has
8. Service life
been employed and that the component is free of
obvious physical defects. 4B1.2.5X-Ray
b. Procedure. Visually inspect components before
a. Purpose. To nondestructively inspect the inter-
and after each manufacturing, handling, storage, and
nal parts of a component.
test operation.
b. Procedure. Perform X-ray radiographic tests in
1. With the unaided eye, inspect all accessible
accordance with MIL-STD-453 or the equivalent.
areas of the component.
NOTE: The components shall be X-rayed to qual-
2. Under 10X minimum magnification, inspect
ity level 2-2T of MIL-STD-453 or the equivalent
all critical surfaces and interfaces of the component.
unless otherwise specified in the component
c. Pass/Fail Criteria. Components shall be of good
specification.
workmanship and free of obvious physical defects.
c. Pass/Fail Criteria. The X-ray evaluation shall
4B1.2.2Weight be in accordance with the accept/reject criteria that
is established by the component specification.
a. Purpose. To ensure that the weight of the
component is within the weight limits that are 4B1.2.6N-Ray
specified in the component specification.
a. Purpose. To nondestructively inspect the inter-
b. Procedure
nal nonmetallic components of explosive compo-
1. Physically weigh the component.
nents. NOTE: N-ray radiographic testing shall
2. Record weight reading in the component
conform to the requirements of ASTM E 748.
travel package.
b. Pass/Fail Criteria. N-ray inspection shall be in
c. Pass/Fail Criteria. Weight limits shall be in
accordance with the accept/reject criteria estab-
accordance with the component specification.
lished by the component specification.
4B1.2.3Dimension
4B1.2.7Leakage
a. Purpose. To ensure that the component config-
a. Purpose. To demonstrate the capability of a
uration is within the dimensional limits that are
component to meet the component design leakage
specified in the applicable component specification.
rate.
b. Procedure
b. Procedure. Perform leak rate tests in accor-
1. Physically measure the component.
dance with the requirements of MIL-STD-202,
2. Record dimensions in the component travel
Method 112, Procedure III or IV or the equivalent.
package.
c. Pass/Fail Criteria. The leak rate shall not
c. Pass/Fail Criteria. The component configura-
component specification.
tion shall be in accordance with the dimensional
limits that are specified in the component specifica-
tion.
4B1.2.4Identification
a. Purpose. To ensure that the component iden-
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APPENDIX 4B1
RSS COMPONENT COMMON TEST REQUIREMENTS
4B1.3 Non-Operating Environment and each edge of the component from a height of 48
in. onto a concrete surface.
4B1.3.1Storage Temperature
c. Pass/Fail Criteria. The component shall not be
a. Purpose. To determine the ability of the test damaged and shall be capable of meeting the
component to withstand high and low temperature performance requirements of its specification.
conditions during all storage conditions without
4B1.3.3.2 Bench Handling Shock
degradation in performance
a. Condition. The test component shall be un-
b. Conditions
packed and in a ready-to-use configuration.
1. The minimum storage temperature range is -
34oC to +71oC. b. Procedure
1. Configure the item as it would be for servi-
2. The test item shall be in its approved storage
cing.
configuration.
2. Position the item as it would be for servicing.
c. Procedure
3. Using one edge as a pivot, lift the opposite
1. Expose the component to the high and low
edge of the chassis until one of the following
temperatures for a minimum of 7 cycles and a 12 h
conditions occurs:
dwell at each temperature extreme.
(a) The chassis forms an angle of 45o with
2. Visually inspect the component for any signs
the horizontal bench top
of deterioration.
(b) The lifted edge of the chassis has been
d. Pass/Fail Criteria. The component performance
raised 4 in. above the horizontal bench top
shall not degrade after it has been exposed to the
4. Let the item drop freely to the solid wood
test temperatures.
bench top.
4B1.3.2High Temperature Exposure 5. Repeat, using other edges of the same
a.Purpose. To determine the ability of the dev- horizontal face as pivot points, for a total of four
ice to withstand exposure to high temperature. drops.
6. Repeat 3 above with the test item resting on
b. Condition. The item shall be placed in an
oven preheated to 30o above the maximum other faces until it has been dropped for a total of
four times on each face on which the test item could
predicted temperature during service life, but not
less than 71oC for a period of 1 h. be placed practically during servicing. NOTE: The
test item shall not be operating.
c.Procedure. Dissect the item and visually inspect
7. Visually inspect the test item.
for any decomposition and/or degradation.
c. Pass/Fail Criteria. The component shall be
d. Pass/Fail Criteria. The item shall not autoignite
capable of meeting the performance requirements of
or decompose as a result of this exposure.
its specification.
4B1.3.3Transport Shock/Bench Handling
4B1.3.4 Transportation Vibration
To ensure that the test component can withstand the
a. Purpose. To ensure that the component can
relatively infrequent, non-repetitive shocks en-
withstand the transportation environment that may
countered in handling, transportation, and service.
be encountered during logistic transportation con-
4B1.3.3.1 Transportation Shock Test ditions on the land, on the sea, and in the air.
b. Conditions
a. Conditions
1. The component shall be packaged in the
1. The test component shall be packaged in the
manner intended for shipment.
manner intended for shipment.
2. The test duration shall be 60 min minimum
2. The test component shall be oriented so that,
per axis.
upon impact, a line from the impacting corner or
c. Procedure. Expose each axis of the component
edge to the center of gravity of the transportation
to the levels listed below:
case and the component is perpendicular to the im-
0.01500 g2/Hz at 10 Hz to 40 Hz
pact surface.
0.01500 g2/Hz at 40 Hz to 0.00015 g2/Hz at 500 Hz
3. Drops shall be made from a quick-release
NOTE: If the test component is resonant below 10
hook or drop tester.
b. Procedure. Drop each corner, each flat face, Hz, extend the curve to the lowest resonant fre-
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Chapter 4: Airborne Range Safety System Documentation, Design, and Test Requirements 31 October 1997
APPENDIX 4B1
RSS COMPONENT COMMON TEST REQUIREMENTS
quency. item to resist the effects of dust or fine sand
d. Pass/Fail Criteria. The component shall be particles that may penetrate into cracks, crevices,
capable of meeting the performance requirements of and bearings and joints causing degradation of the
its specification. performance, effectiveness, and reliability of the
component.
4B1.3.5 Fungus Resistance
b. Conditions
a. Purpose. To determine that the component will
1. The test item shall be in a configuration that
resist fungal growth or if fungal growth occurs, the
would allow it to be exposed to dust and fine sand
growth will not affect the performance of the
conditions (in a shipping or storage container, a
component.
transit case, ready to use).
b. Procedure. Perform the fungal resistance test in
2. Relative humidity shall not exceed 30 per-
accordance with MIL-STD-810, Method 508.4 or
cent.
the equivalent.
3. Silica sand, at least 95 percent by weight
c. Pass/Fail Criteria. The component shall be
SO , shall be used as the test medium. The size
i 2
inspected in accordance with criteria stated in the
distribution as determined by weight using the US
component specifications.
Standard Sieve Series shall be as follows:
4B1.3.6 Salt Fog (a) 1 percent shall be retained by a 20 mesh
screen
a. Purpose. To determine the ability of the test
(b) 1.7 percent shall be retained by a 30 mesh
component to resist the effects of a moist, salt-laden
screen
atmosphere. This test is applicable to any compo-
(c) 14.8 percent shall be retained by a 40
nent that will be exposed to salt fog conditions
mesh screen
while in service.
(d) 37.0 percent shall be retained by a 50
b. Condition. The component shall be completely
mesh screen
unpacked and in a ready-to-use configuration.
(e) 28.6 percent shall be retained by a 70
c. Procedure
mesh screen
1. Perform a full functional test of the compo-
(f) 12.7 percent shall be retained by a 100
nent and record the test results.
mesh screen
2. Place the test component in a test chamber
(g) 5.2 percent shall pass through a 100 mesh
and expose the component to 5 percent salt fog at
screen
35oC for a period of 48 h.
c. Procedure
3. At the end of the exposure period, inspect the
1. Expose each face of the test item to a sand
component for corrosion.
dust having a velocity of 18 to 29 meters per second
4. Store the test component in ambient atmos-
for a total of 90 min per face.
phere for 48 h.
2. If operation of the test item is required,
5. At the end of the ambient stage period,
continuously operate the test item for a minimum of
operate the test component again and compare the
10 min during the last period of the test.
results with the data collected prior to the start of
3. Visually inspect the component for abrasion,
the test. NOTE: If required, the test component may
clogging effects, and any evidence of sand penetra-
be gently washed in running water not warmer than
tion.
38oC.
d. Pass/Fail Criteria
d. Pass/Fail Criteria
1. The performance of the test item shall not be
1. The component shall be capable of meeting
degraded.
the performance requirements of the component
2. Abrasion of the test item shall not exceed the
specification.
amount specified in its component specification.
2. The component performance shall not vary
from the data that was collected during the full 4B1.3.8 Pull
functional test prior to the start of the test.
The purpose of the following tests is to verify the
4B1.3.7 Fine Sand capability of the components to withstand handling
tensile loads without damage or degradation of
a. Purpose. To determine the ability of the test
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APPENDIX 4B1
RSS COMPONENT COMMON TEST REQUIREMENTS
performance. 1. The component shall not detonate and it shall
remain safe to handle.
4B1.3.8.1 Initiator
2. The component shall function after the test if
EED Initiator Pins and EBW initiator pins (ter-
the effects of the test are not detectable.
minals) shall be capable of withstanding an axial
4B1.3.9.3 Destruct Charge
pull of at least 18 lb for not less than 1 min without
damage or degradation in performance. a. Procedure. Drop the component onto a 1/2-in.
thick steel plate from a height of 6 ft.
4B1.3.8.2 ETS, FOCA, LIDs Pigtail, and Optical
b. Pass/Fail Criteria
Connector
1. The component shall not detonate and it shall
a. Conditions
remain safe to handle.
1. 100 lb tensile load for qualification test
2. The component shall function after the test if
2. 50 lb tensile load for acceptance test
the effects of the test are not detectable.
b. Pass/Fail Criteria. The component and its asso-
4B1.3.10 40-ft Drop
ciated fittings shall be capable of withstanding ten-
sile loads, as stated in the Condition, for 1 min a. Purpose. To demonstrate that the components
minimum without damage or degradation in will not initiate when dropped from a height of 40 ft
performance. and will be safe to handle.
b. Procedure. Drop the component onto a 1/2-in.
4B1.3.8.3 Destruct Charge
thick steel plate from a height of 40 ft.
a. Conditions
c. Pass/Fail Criteria. The component shall not
1. 50 lb for qualification test
detonate and shall remain safe to handle. The
2. 25 lb for acceptance test
component is not required to function after the test.
b. Pass/Fail Criteria. The component and associ-
4B1.4 Operating Environment
ated fittings shall be capable of withstanding tensile
loads, as stated in the Condition, for 1 min mini- 4B1.4.1 Qualification
mum without damage or degradation in perform-
4B1.4.1.1 Sinusoidal Vibration
ance.
a. Purpose
4B1.3.96-ft Drop 1. To demonstrate the ability of the component
to withstand or, if appropriate, to operate at the
To demonstrate that the component will not initiate
design levels of the sinusoidal or decaying sinusoi-
when dropped from a height of 6 ft and that it will
dal type dynamic vibration environment that is
perform to specification after impact.
specified for the component.
4B1.3.9.1 Initiator
2. To determine any resonant conditions that
a. Conditions could result in failure in flight or in subsequent
1. The initiator shall be dropped onto a 1/2-in. vibration tests.
thick steel plate from a height of 6 ft. b. Conditions
2. The initiator shall be dropped twice. 1. A full functional test shall be conducted
b. Procedure before and after the completion of the sinusoidal
1. Drop the initiator to cause it to impact on the vibration test.
output end. This is drop 1 of 2. 2. Critical parameters, as agreed to by Range
2. Drop the initiator to cause it to impact on its Safety, shall be continuously monitored for failures
or intermittents during the vibration test.
side. This is drop 2 of 2.
3. When monitoring during the vibration test is
c. Pass/Fail Criteria. The detonator shall not fire,
not practical, a limited functional test shall be
dud, or deteriorate in performance as a result of this
performed after the vibration test for each axis.
test.
4. The component shall be tested in each of 3
4B1.3.9.2 ETS
mutually perpendicular axes. Significant resonant
a. Procedure. Drop the component onto a 1/2-in. frequencies in each of these axes shall be noted and
thick steel plate from a height of 6 ft. recorded.
b. Pass/Fail Criteria 5. As applicable, the component shall be
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Chapter 4: Airborne Range Safety System Documentation, Design, and Test Requirements 31 October 1997
APPENDIX 4B1
RSS COMPONENT COMMON TEST REQUIREMENTS
mounted, including dynamic isolator (if used), as in 4B1.4.1.2.1 Hard Mounted Components.
flight configuration with flight-type support struc- a. Conditions
ture, hardware, cable, and explosive transfer line 1. A full functional test shall be conducted
(ETL). before and after the completion of the random
6. The induced cross axis acceleration at the vibration test.
attach points should be limited to the maximum test 2. During the random vibration test, electrical
levels specified for the cross axes. and electronic components, including redundant
7. Tests that are conducted to determine circuits, shall be electrically energized and func-
resonant conditions shall be conducted using test tionally sequenced through various operational
levels and duration that are sufficient to provide modes to the maximum extent possible.
diagnostic capability. 3. Critical parameters, as agreed to by Range
8. Sinusoidal excitation may be applied as a Safety, shall be continuously monitored for failures
dwell at discrete frequencies or as a frequency or intermittents during the random vibration test.
sweep with the frequency varying at a logarithmic 4. Where insufficient time is available at the
rate. full test level to test all functions and modes,
9. The sweep rate for diagnostic tests shall be extended testing at a level 6 dB lower shall be
slow enough to allow identification of significant conducted as necessary to complete functional
resonances. testing.
10. Tests that are conducted to demonstrate the b. Procedure
degree of ruggedness shall be a duration of 2 min 1. Mount the component as in flight configu-
per octave unless the sweep rates and dwell times ration with flight-type support structure, bracket,
can be based on the persistence of the environment hardware, cable, and ETL, as applicable.
in in-service use. 2. Vibrate the component in each of three
11. The vibration level shall be at 6 dB above orthogonal axes.
the maximum predicted environment. 3. The vibration test duration in each of the
c. Pass/Fail Criteria. The test component shall be three orthogonal axes shall be 3 times the expected
capable of meeting the requirements of the applica- flight exposure time to the MPE or 3 times the
ble specification(s) without any physical damage or component random vibration acceptance test time if
degradation of performance. that time is greater, but not less than 3 min per axis.
4. The minimum vibration test level shall be
4B1.4.1.2 Random Vibration
6 dB above the MPE; however, the power spec-
a. Purpose. To determine if the test component trum density shall not fall below that shown in
will continue to operate in an environment with a Table 4B1-1.
vibration level at 6 dB above the maximum pre- Table 4B1-1
dicted environment (MPE) and to ensure that the Minimum Power Spectral Density
For Qualification Random Vibration
acceptance will not damage the flight unit.
Frequency Range Minimum Power Spectral
Density
20 0.021 g2/Hz
20 - 150 3 dB/OCTAVE SLOPE
150 - 600 0.16 g2/Hz
600 - 2000 -6 dB/OCTAVE SLOPE
2000 0.014 g2/Hz
Overall GRMS = 12.2
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APPENDIX 4B1
RSS COMPONENT COMMON TEST REQUIREMENTS
c. Pass/Fail Criteria. The test component shall be axis.
capable of meeting the requirements of the applica- (b) Obtain the unit response PSD and
ble specification(s) without any physical damage or envelop all 3 axes into one composite curve A.
degradation in performance. (c) Obtain a new PSD curve B by adding
1.5 dB to Curve A.
4B1.4.1.2.2 Isolator Mounted Components. (d) Compare PSD curve B to the minimum
a. Conditions PSD for acceptance as is shown in Table 4B1-2.
1. A full functional test shall be conducted (e) Create a new curve by enveloping the
before and after the completion of the random most stringent value of both curves. NOTE: This
vibration test. new PSD curve (curve C) becomes the PSD for
2. During the random vibration test, electrical acceptance testing.
and electronic components, including redundant (f) Obtain a qualification PSD (curve D)
circuits, shall be electrically energized and function- by adding 6 dB to curve C.
ally sequenced through various operational modes to c. Isolator Mount Procedure
the maximum extent possible. 1. Mount the component as in flight configura-
3. Critical parameters, as agreed to by Range tion with flight-type support structure, hardware,
Safety, shall be continuously monitored for failures cable, ETL (as applicable), and brackets.
or intermittents during the random vibration test. 2. Vibrate the component in each of three
4. Where insufficient time is available at the orthogonal axes.
full test level to test all functions and modes, 3. The vibration test duration in each of the
extended testing at a level 6 dB lower shall be three orthogonal axes shall be 3 times the expected
conducted as necessary to complete functional flight exposure time to the MPE or 3 times the
testing. component random vibration acceptance test time if
5. The isolator shall have passed the accep- that time is greater, but not less than 3 min per axis.
tance test in accordance with the requirements in 4. The minimum vibration input test level at the
Appendix 4B11. isolator shall be 6 dB above the MPE; however, the
6. The component shall be qualification test- PSD shall not fall below that shown in Table 4B1-1.
ed in both hard mounted and isolated mounted d. Pass/Fail Criteria. The test component shall be
configuration. NOTE: The hard mounted test is to capable of meeting the requirements of the applica-
ensure that subsequent acceptance tests will not
ble specifications without any physical damage or
damage the hardware. The isolated mounted test is
degradation in performance.
to qualify the interfaces in flight configuration.
4B1.4.1.3 Acoustic
b. Hard Mount Procedure
1. Mount the component as in flight configura- a. Purpose. To determine if the test component
tion with flight-type support structure, bracket, will continue to operate in an environment with a
hardware, cable, ETL (as applicable) and without sound pressure level at 6 dB above the MPE.
the isolator.
b. Conditions
2. Vibrate the component in each of three
1. A full functional test shall be conducted
orthogonal axes.
before and after the completion of the acoustic
3. The vibration test duration in each of the
vibration test.
three orthogonal axes shall be 3 times the expected
2. During the acoustic vibration test, electrical
flight exposure time to the MPE or 3 times the
and electronic components, including redundant
component random vibration acceptance test time if
circuits, shall be electrically energized and func-
that time is greater, but not less than 3 min per axis.
tionally sequenced through various operational
4. The random vibration power spectrum den-
modes to the maximum extent possible.
sity (PSD) used for this test shall be obtained as
3. Critical parameters as agreed to by Range
follows: (See also Figure 4B1-1)
Safety shall be continuously monitored for failures
(a) Using either the mass simulator,
development or flight unit with the isolator mounted
in flight configuration with flight-type cable, ETL
(as applicable), vibrate the unit at 3 orthogonal axes
at the component maximum MPE for 1 min for each
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Chapter 4: Airborne Range Safety System Documentation, Design, and Test Requirements 31 October 1997
APPENDIX 4B1
RSS COMPONENT COMMON TEST REQUIREMENTS
Figure 4B1-1
Obtaining Power Spectrum Density
4-83