A comparison test of transmissibility response from human occupant and anthropodynamic dummy

摘要

In order to specify the human dynamic comfort of seat vibration, a lot of work has been conducted in laboratory research. From the seating manufacturer's perspective, the author proposed a test method to measure the seat ride comfort by using a spring-mass dummy which was designed to match the human response in low frequency in vertical direction. A hydraulic table was employed as the excitation source to the occupied seat. Two seat samples, both measured with human occupants before, were used for this study. For simplicity and comparison, a sweep sine signal in vertical direction was used as the excitation signal. The transmissibility results measured of the dummy-loaded seat were compared to those of human occupants. In this paper, a continuing effort focused on correlating the vibration response from dummy-occupied seat to that from human-occupied seat. A consistent relation was shown between the two measurements. The results provide a promising analysis tool that can be very helpful in seat prototype design to improve ride comfort.