Objective: To investigate the four influences of hand-transmitted vibration measurements by the orthogonal experimental in air wrench.
Methods: With reference to the measurement standard for hand-transmitted vibration ISO 5349 Mechanical vibration-Measurement and evaluation of human exposure to hand-transmitted vibrationPart1:General requirements and Mechanical vibration-Measurement and evaluation of human expusure to hand-transmitted vibration-Part 2:Practical guidance for measurement at the workplace, the domestic AWA5936 hand-transmitted vibration measuring instrument was used to measure hand-transmitted vibration in 3 workers for an automobile plant in production chain field for the orthogonal continuously experimental in May, 2016, and data were recorded and compared. 3 the domestic AWA5936 hand-transmitted vibration measuring instrumencases of hand vibration workers as research object, based on ISO5349. The determinate influences factors were adapter locations, measurement time, hand vibration workers and accelerator axis.
Results: The range and variance analysis of adaptor location, measurement time, operate staff and accelerator axis were 59. 5, 62. 4, 52. 1 and 6. 80. The significance test, the factor of the adapter location is the high degree(F_(0. 01)=5. 42), measurement time and operate staff are the ordinary degree(F_(0. 05)=3. 33, F_(0. 1)=2. 50).
Conclusion: The adaptor location was the main uncertain influences factors on HAV measurements, the measurement time and operator staff were the potential influences factor.
Keywords: ISO 5349; assembly line workers; hand-transmitted vibration; orthogonal experimental design.