AS 60068.2.6-2003

1 - AS 60068.2.6-2003 ENVIRONMENTAL TESTING - TESTS-TEST Fc: VIBRATION (SINUSOIDAL)
4 - PREFACE
5 - CONTENTS
7 - 1 Scope
7 - 2 Normative references
8 - 3 Definitions
8 - 3.1 fixing point:
8 - 3.2 measuring points:
9 - 3.2.1 check point:
9 - 3.2.2 reference point:
9 - 3.3 Control points
9 - 3.3.1 single point control:
9 - 3.3.2 multipoint control:
9 - 3.4 sweep cycle:
9 - 3.5 signal tolerance:
9 - 3.6 basic motion:
9 - 3.7 actual motion:
9 - 3.8 damping:
10 - 3.9 critical frequencies:
10 - 3.10 centred resonance frequency:
10 - 3.11 restricted frequency sweeping:
10 - 3.12 gn :
10 - 4 Requirements for testing
10 - 4.1 Required characteristics
10 - 4.1.1 Basic motion
10 - 4.1.2 Spurious motion
11 - 4.1.3 Signal tolerance
11 - 4.1.4 Vibration amplitude tolerances
12 - 4.1.5 Frequency tolerances
12 - 4.1.6 Sweep
12 - 4.2 Mounting
12 - 5 Severities
13 - 5.1 Frequency range
14 - 5.2 Vibration amplitude
15 - 5.3 Duration of endurance
15 - 5.3.1 Endurance by sweeping
16 - 5.3.2 Endurance at fixed frequencies
16 - 6 Preconditioning
16 - 7 Initial measurements
16 - 8 Testing
17 - 8.1 Vibration response investigation
17 - 8.2 Endurance procedures
17 - 8.2.1 Endurance by sweeping
17 - 8.2.2 Endurance at fixed frequencies
18 - 9 Intermediate measurements
18 - 10 Recovery
18 - 11 Final measurements
18 - 12 Information to be given in the relevant specification
20 - Annex A - Guide to test Fc
20 - A.1 Introduction
21 - A.2 Measurement and control
23 - A.3 Testing procedures
25 - A.4 Test severities (see clause 5)
29 - A.5 Equipment normally used with vibration isolators
30 - A.6 Duration
30 - A.7 Dynamic response
31 - A.8 Performance evaluation
31 - A.9 Initial and final measurements
32 - Annex B - Examples of severities primarily intended for components
33 - Annex C - Examples of severities primarily intended for equipment

This Standard gives a method of test to determine the ability of components, equipment and other articles, to withstand specified severities of sinusoidal vibration. The purpose of this test is to determine any mechanical weakness and/or degradation in the specified performance of specimens.

This part of IEC 60068 gives a method of test which provides a standard procedure to determine the ability of components, equipment and other articles, hereinafter referred to as specimens, to withstand specified severities of sinusoidal vibration. The purpose of this test is to determine any mechanical weakness and/or degradation in the specified performance of specimens and to use this information, in conjunction with the relevant specification, to decide the acceptability of the specimens. In some cases, the test method may also be used to demonstrate the mechanical robustness of specimens and/or to study their dynamic behaviour. Categorization of components can also be made on the basis of a selection from within the severities quoted in the test.

First published as AS 60068.2.6-2003.