This Standard specifies the test method for mixed mode vibration.
The purpose of the test is to demonstrate the adequacy of components, equipment
and other products (hereafter referred to as "specimens") to resist the specified mixed
mode excitation without unacceptable degradation of its functional and/or structural
performance. It is particularly useful for tailoring mixed mode environments where
measured data are available for the real life environment.
The test also helps reveal the accumulated effects of stress induced by random vibra-
tion. mixed with sine and/or random, and the resulting mechanical weakness and deg-
radation in specified performances, and to use this information, in conjunction with the
relevant specification, to assess the acceptability of specimens, in some cases, this Stan-
dard may also be used to demonstrate the mechanical robustness of specimens.
This Standard is applicable to specimens which may be subjected to vibration of a
random and/or a combination of random and deterministic nature resuhing from trans-
portation or real life environments, for example in aircraft, space vehicles and for items
in their transportation container when the latter may be considered as part of the
specimen itself'.
Ahhough primarily intended for electrotechnieal specimens, this Standard is not re-
stricted to such specimens and may be used in other fields where desired.
NOTE : The International Standard(s) corresponding to this Standard and the
symbol of degree of' contents are as follows :
IEC 60068-2-80 : 2005 Environmental testiny- Part 2-80 : Tests --
Test Fi : Vibration Mixed mode (MOD)
The symbols which denote the degree of correspondence in the con-
tents between the relevant International Standard and ,]IS are IDT
(identical). MOD (modified), and NEQ (not equivalent) according to
ISO/IEC Guide 21.
JIS C 60068-2-80:2009 Referenced Document
JIS B 0153:2001 Glossary of terms used in mechanical vibration and shock
JIS C 60068-2-47:2008 Environmental testing -- Part 2-47: Tests -- Mounting of specimens for vibration, impact and similar dynamic tests
JIS C 60068-2-64:1997 Environmental testing Part 2: Test methods -- Test Fh: Vibration, broad-band random (digital control) and guidance
JIS C 60068-2-6:1999 Environmental testing -- Part 2: Tests -- Test Fc: Vibration (sinusoidal)
JIS C 60068-3-8:2006 Environmental testing -- Part 3-8: Supporting documentation and guidance -- Selecting amongst vibration tests
JIS C 60068-2-80:2009 history
2009JIS C 60068-2-80:2009 Environmental testing -- Part 2-80: Tests -- Test Fi: Vibration -- Mixed mode