Click here to make tpub.com your Home Page

Page Title: Vibration
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home

   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 




img
MIL-G-82455(OS)
The Generators shall be subjected
Environmental tests .-
4.4.2.1
to the environmental tests (see Table IV)- Unless otherwise specified,
inability of the Generator to pass the leakage and function tests of
4.4.2.2 and 4.4.2.3 subsequent to the environmental tests, constitutes
a failure.
Vibration.-
4.4.2.1.2
Mount the Generator, with the safety
Installed.-
4.4.2.1.2.1
pin removed, as shown in figure 2.  The Generator shall be conditioned
at room temperature for a minimum period of 1 hour prior to conducting
the resonance surveys.  vibrate the unit at room temperature for a total
of 9 hours, in accordance with Procedure XII, Specification MIL-E-5272C,
and Table I of 3.4.1.1.
Mount the packaged Generator on the
Packaged.-
4.4.2.1.2.2
vibration test equipment.  The packaged Generator shall be vibrated
at room ambient temperature.  Cycle the applied vibration from 5 to
60 cps in accordance with Table II of 3.4.1.2 at the rate of 1 cycle
(from 5 to 60 cps and return) every 5 minutes for 15 minutes in each
of three mutually perpendicular axis.
Shock.-  The Generator shall be subjected to shock
4.4.2.1.3
at room temperature (4.4.2.1.3.1 and 4.4.2.1.3.2) in accordance with
the shock test procedure IV of Specification MIL-E-5272C except
shock magnitude and duration shall be measured using an accelerometer
mounted on the input table of the fixture to indicate applied shock,
and the test equipment is not restricted to that specified in
Specification MIL-E-5272C.
Safety pin installed.- Mount the Generator as
4.4.2.1.3.1
shown in figure 2 except the safety pin shall be installed.  Secure
to the shock test fixture so that a minimum of 90 percent of the
table input of the fixture will be applied to the Generator.  Subject
the Generator to a total of 9 shocks of 60 g each for 8 +2 -O
milliseconds.  Two shocks, one in each direction, shall be applied
along the mutually perpendicular principle axis and three shocks
shall be applied in any direction.
11

Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business