Comparison of the Ergonomic Characteristics of Forwarders with Stationary and Rotating Cabins  

作　　者：Petr Filo 

机构地区：[1]Department of Forest and Forest Products Technology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno61300, Czech Republic

出　　处：《Journal of Agricultural Science and Technology(B)》2014年第6期476-484,共9页农业科学与技术（B）

摘　　要：The research of the ergonomic parameters of two tested forwarders was based on the measurement of a variability of physiological functions of the operator during one work shift. The research included a series of six measurements, each lasting l h and starting at 5：00, 12：00 and 17：00 O＇clock. The measured operator was at all times the same person. We had a hypothesis that the rate of the measured variability would have to do with the following four factors： forwarder cabin type, terrain character, fatigue during the work shift and work at daylight or in dark. Main findings are described below： during his work with a fixed type of the forwarder cab, the operator＇s brain waves at the frequency of Gamma, high Beta, Beta and Alpha reached statistically significantly higher average values than during his work with a rotating cab. With a higher degree of terrain roughness and in the forwarder with the rotating cab, the operator showed a significantly higher frequency and lower amplitude of respiration. At the beginning of the work shift, the tension of muscles in the operator＇s neck was at the significantly lowest level. In the afternoon, at the end of the work shift, the level of muscle tension was the highest. The “daylight/dark” work had a significantly highest impact on volume changes in the amplitude （strength） of blood pulse and on the skin conductance level. All research factors explained together 15%-65% of the variability of physiological functions.

关 键 词：FORWARDER CABIN ergonomic parameters OPERATOR psycho-physiological functions 

分 类 号：TP334.2[自动化与计算机技术—计算机系统结构] TP393[自动化与计算机技术—计算机科学与技术]