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Vibration & Shock
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Continuous exposure to vibration and shock can reduce a persons ability
to perform their tasks, and/or cause undue discomfort. The level
of vibration and shock exposure should be determined based upon
the length of the exposure and the persons functional requirements
e.g. operators should have much better vibration and shock insulation
than passengers that will have limited exposure.
The most common preferred standard used in transit applications
is ISO-2631-1. BS 6841 is an alternative standard, however ISO-2631-1
is normally preferred. |
| Standard: |
ISO-2631-1 - Mechanical
Vibration and Shock Evaluation of Human Exposure to
Whole Body Vibration
| | Purpose: |
This standard contains evaluation methods to
determine the extent to vibration of whole body
exposure for; human health and comfort, the
probability of vibration perception, and the
incidence of motion sickness.
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| Criteria: |
Specify analysis must be performed using standard,
desired comfort level (Note: the 1978 version has
comfort level graphs with exposure limits)
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| Usage: |
.... Vibration analysis must be performed per
ISO-2631, vibration levels must be below the X-hour
limit for fatigue and decreased proficiency.
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| Standard: |
BS 6841 - Guide to Measurement and Evaluation of Human Exposure to Whole-Body Mechanical Vibration and Repeated Shock
| | Purpose: |
This standard contains evaluation methods of quantifying
vibration and shock in relation to human health, interference
with activities, discomfort, the probability of vibration
perception and the incidence of motion sickness. Tentative
guidance is given on the possible effects of vibration.
This standard is not equivalent to ISO 2631-1.. |
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| Criteria: |
Specify analysis must be performed using standard, desired comfort level.
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| Usage: |
.... Vibration analysis must be performed per BS 6841...
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