AS 2955.6-1988

1 - AS 2955.6-1988/ ISO7096-1982 EARTH-MOVING MACHINERY - TESTS AND MEASUREMENTS - OPERATOR SEAT - TRANSMITTED VIBRATION
4 - CONTENTS
4 - FOREWORD
5 - 1 Scope
5 - 2 Field of application
5 - 3 References
5 - 4 General
5 - 5 Definitions
5 - 5.1 whole body vibration:
5 - 5.2 operator seat:
5 - 5.3 frequency analysis:
5 - 5.4 measuring period:
6 - 6 Symbols and abbreviations
6 - 7 Instruments
6 - 7.1 Acceleration transducers
6 - 7.2 Transducer mounting
6 - 7.2.1 Vibration transmitted to the operator
6 - 7.2.2 Vibration at the seat mounting base
6 - 7.3 Electronic tape recorders
7 - 7.4 Frequency weighting
7 - 7.4.1 Constant bandwidth method
7 - 7.4.2 One-third octave bandwidth method
7 - 7.4.3 Broadband method
7 - 7.5 Calibration
7 - 7.5.1 General
7 - 7.5.2 For tests
8 - 8 Vibration test stand
8 - 8.1 Physical characteristics
8 - 8.2 Safety recommendations
8 - 8.3 Technical characteristics
9 - 9 Test arrangement
9 - 9.1 Test seats
9 - 9.2 Test persons
9 - 10 Test input vibration
9 - 10.1 Machine classes
9 - 10.2 Vibration characteristics
9 - 11 Test procedure
9 - 11.1 Test arrangement
9 - 11.2 Test for damping
10 - 11.3 Random vibration test
10 - 12 Acceptance levels
10 - 13 Test report

Specifies a method for the laboratory measurement, evaluation and acceptance level of the whole body vibration transmitted through seat to operator during laboratory simulated machine vertical vibration. Is applicable to seats fitted to earth-moving machines within specified classes of machines having similar vibration characteristics.

This International Standard specifies a method for the measurement, evaluation and acceptance level of the whole body vibration transmitted through the seat to the operator during laboratory simulated machine vertical vibration.Field of applicationThis International Standard is applicable to seats fitted to earthmoving machines within specified machine classes, each class defined as a group of machines having similar vibration characteristics. See table 2.