Research on the Method of Measuring the Handling Comfort of the Man-machine System Based on the Perception Field of Operating Forces

doi:10.3901/JME.2016.12.192

Abstract

Abstract: Handling comfort measurement is a significant part of the study of man-machine system. As influenced by many complex factors, it is difficult to measure the handling comfort accurately and stably. Aiming at the problem, the perception field of operating forces of man-machine system is constructed, by which the influencing factors and related evaluation methods are classified and analyzed. The contact stresses and the muscle stresses are extracted as the key parameters of the field source. Their corresponding perceived intensities are taken as the parameters of field intensity. Stevens’ power law is used to describe the mapping between the contact stress and its perceived intensity as well as the muscle stress and its perceived intensity quantitatively, and the relationship of the perceived intensity and the comfort is characterized by Gaussian potential function. According to the distribution characteristic of the perception field of operating forces, comprehensive measure of handling comfort is implemented in local and holistic ways. The method is applied to the handling comfort test of automobile brake pedal. The experimental results show that the comfort index is consistent with the result of subjective assessment. The method can be a useful addition to subjective methods, and can provide a theoretical basis and data supports for the optimization design of handling comfort of man-machine system.

Key words: comfort index, handling comfort, man-machine system, perception field of operating forces

CLC Number:

TB18

LIU Mingzhou, ZHANG Miao, HU Jing, LIU Zhengqiong, WANG Haiyang. Research on the Method of Measuring the Handling Comfort of the Man-machine System Based on the Perception Field of Operating Forces[J]. Journal of Mechanical Engineering, 2016, 52(12): 192-198.

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