Effects of Vibration

1. VIBRATION MEASUREMENTS & STANDARDS
• Measurement of vibration
includes three parameters:-
• Amplitude (Acceleration)
describe severity of
vibration
• Frequency spectrum
• Duration of exposure
Waveform characteristics
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ME 710 Effects of Vibrations on Health

2. VIBRATION MEASUREMENTS & STANDARDS
• Transducer
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Accelerometer
Mounting of Accelerator for Whole Body and Hand-arm
Vibrations
ME 710 Effects of Vibrations on Health

3. VIBRATION MEASUREMENTS & STANDARDS
• Vibration exposure calculations
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ME 710 Effects of Vibrations on Health

4. VIBRATION MEASUREMENTS & STANDARDS
• Vibration Standards
ACGIH Threshold Limit Values(TLVs)
Total Daily Exposure
Duration
Maximum Value of
frequency weighted
acceleration
4 to less than 8 hours 4 m/s2
2 to less than 4 hours 6 m/s2
1 to less than 2 hours 8 m/s2
Less than 1 hours 12 m/s2
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ME 710 Effects of Vibrations on Health