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Related Experiment Videos

Chipping hammer vibration.

J B Clarke, W Dalby, J F Gunn

    Scandinavian Journal of Work, Environment & Health
    |August 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    Researchers investigated chipping hammer vibrations, finding higher levels at the chisel. A new chisel sleeve reduced vibration by up to 66%, offering a solution for operator health and safety.

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    Area of Science:

    • Occupational Health and Safety
    • Mechanical Engineering
    • Ergonomics

    Background:

    • Chipping hammers generate significant vibration, posing risks to operator health.
    • Vibration-induced white finger is a recognized occupational hazard linked to tool use.
    • Understanding vibration transmission is crucial for developing effective mitigation strategies.

    Purpose of the Study:

    • To identify key factors influencing chipping hammer vibration.
    • To develop and evaluate methods for reducing operator hand-arm vibration.
    • To improve the safety and ergonomics of chipping hammer operation.

    Main Methods:

    • Comparative measurement of vibration levels at the hammer chisel and handle.
    • Development and testing of a novel chisel sleeve for vibration reduction.

    Related Experiment Videos

  • Integration of vibration-isolating materials into a prototype hammer.
  • Evaluation of vibration-isolating gloves in conjunction with the chisel sleeve.
  • Design of a specialized mounting device for accurate accelerometer measurements.

    • Main Results:

    • Vibration levels were substantially higher at the chisel (24 m/s2) compared to the handle (8 m/s2).
    • The developed chisel sleeve achieved up to a 66% reduction in vibration.
    • A prototype hammer with isolating material reduced weighted vibration from 7 m/s2 to 3 m/s2.
    • Vibration-isolating gloves provided an additional reduction of up to 63% when used with the chisel sleeve.

    Conclusions:

    • The chisel is the primary source of high vibration in chipping hammers.
    • Engineering controls, including chisel sleeves and isolating materials, are effective in reducing hand-arm vibration.
    • Combined use of mitigation strategies, such as sleeves and gloves, offers significant vibration reduction.
    • Accurate measurement techniques are essential for evaluating vibration control effectiveness.