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BSI 23/30425998 DC 2023

BSI 23/30425998 DC 2023

$13.70

BS EN IEC 60068-2-86 Environmental Testing – Part 2-86: Tests-Test Fx. Multi-Exciter and Multi-Axis Shock and Vibration Testing and Guidance

Published By Publication Date Number of Pages
BSI 2023 34
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PDF Catalog

PDF Pages PDF Title
4 CONTENTS
5 FOREWORD
8 1 Scope
9 2 Normative References
3 Terms and Definitions
3.1 Multi-Exciter Single-Axis (MESA)
3.2 Multi-Exciter Multi-Axis (MEMA)
3.3 Single-Input/Single-Output (SISO)
10 3.4 Single-Input/Multiple-Output (SIMO).
3.5 Multiple-Input Single-Output (MISO).
3.6 Multiple-Input Multiple-Output (MIMO).
4 Background
4.1 General
4.2 Multi-axis and/or multi-exciter testing to achieve an improved distribution of dynamic responses
11 4.3 Multi-exciter testing for large equipment
4.4 Multi-axis testing for reliability growth
4.5 Multi-axis testing to reduce test durations
12 5 Test Apparatus and Control Strategy
6 Test Severities and Tolerances
6.1 Test Severities
6.2 Tolerances
6.3 Excitations Outside the Specified Test Frequency Range
13 6.4 Cross-axis Motions
7 Mounting of Specimen and Installation of Measurement Systems
8 Precursor Testing
9 Dynamic Characterisation
14 10 Pre-Conditioning
11 Initial Measurement and Functional Performance Test
12 Low Level Excitation for Equalisation Prior to Testing
13 Testing
14 Intermediate Measurement and Functional Performance
15 Recovery
16 Final Measurement and Functional Performance and Dynamic Characterisation
15 17 Test Verification
18 Information to be Specified in the Relevant Specification
16 19 Information to be Given in the Test Report
17 Annex A (informative)
Guidance on Multi-axis and Multi-exciter Test Control Systems
A.1 General
A.2 Multi-Exciter Control Strategies
18 A.3 Determined and Over Determined Control Strategies
A.4 Quantifying the Inter-relationship Between Exciters for Vibration Testing
19 A.5 Quantifying the Inter-relationship Between Exciters for Time History Replication Testing
21 Annex B (informative)
Additional Testing Guidance
B.1 Fixing, Monitor, Control and Reference Points
B.2 Control Equalisation
22 B.3 Cross-Axis Motion, Signal Distortion and Out of Test Frequency Range Responses
B.4 Precursor Testing
23 B.5 Dynamic Characterisation Investigations
B.6 Temperature Conditioning and Stabilization
B.7 Performance Evaluation
24 B.8 Verification of Test Procedure
25 Annex C (informative)
Guidance on the Application of Multi-axis / Multi-vibrator Tests
C.1 General
C.2 Advice on Using Multi-Exciter Systems for The Testing of Large Specimens
C.2.1 General
C.2.2 Data Measurements
C.2.3 Multi-Exciter Test Fixture
C.2.4 Test Control
C.2.5 Testing
26 C.3 Advice on Using Multi-Axis Systems for Multi-Degree of Freedom Testing
C.3.1 General
C.3.2 Data Measurements
C.3.3 Multi-Exciter Test Fixture
27 C.3.4 Test Control
C.3.5 Testing
C.4 Advice on Using Multiple Shakers Attached Directly to The Specimen Via Flexible Couplings
C.4.1 General
C.4.2 Data Measurements
28 C.4.3 Multi-Exciter Test Fixture
29 C.4.4 Test Control
30 C.4.5 Interrelationship in Testing
31 Annex D (informative)
Guidance on The Use of Measured Data for Multi-axis / Multi-vibrator Tests
D.1 General
D.2 Use of Measured Data to Derive Test Severities
32 Annex E (informative)
Guidance on The Selection of Test Tolerances
E.1 General
E.2 Test Tolerances Associated with Measured Data
E.3 Test Tolerances Applicable to Different Parameters
34 Bibliography

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BSI 23/30425998 DC 2023
$13.70