IEC 60068-2-81 : 1.0
IEC 60068-2-81 : 1.0
ENVIRONMENTAL TESTING - PART 2-81: TESTS - TEST EI: SHOCK - SHOCK RESPONSE SPECTRUM SYNTHESIS
International Electrotechnical Committee
Table of Contents
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements for test apparatus
4.1 Basic motion
4.2 Cross-motion
4.3 Signal tolerance
4.4 Measuring system
5 Requirements for testing
5.1 Test control
5.2 Tolerances on SRS
5.3 Calculation of test SRS
5.4 Algorithms for calculation of SRS
5.5 Test frequency range
5.6 Mounting
6 Severities
6.1 Required SRS
6.2 Duration of the synthesized time-history
6.3 Number of repetitions
6.4 Test frequency range
6.5 Number of high peaks in a calculated response time-history
of a single degree-of-freedom system
7 Preconditioning
8 Initial measurements
9 Testing
9.1 General
9.2 Vibration response investigation
9.3 Synthesis of the test time-history
9.4 Testing with synthesized test time-histories
10 Intermediate measurements
11 Recovery
12 Final measurements
13 Information to be given in the relevant specification
14 Information to be given in the test report
Annex A (informative) Test time history - General background
information
Annex B (informative) Parameters for use in synthesizing a test
time-history
Annex C (informative) How to synthesize a test time-history
Annex D (informative) Recommended frequency ranges for test SRS
Bibliography
Figures
Tables
Abstract
Describes the tests using a synthesized shock response spectrum (SRS). It is intended for general application to specimens when simulation of transient excitation of a complex nature is required.
General Product Information
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 104 |
