Print Email Facebook Twitter Seat Vibration Simulator for Ride Comfort Evaluation Title Seat Vibration Simulator for Ride Comfort Evaluation Author Zhao, Liang (TU Delft Mechanical, Maritime and Materials Engineering) Contributor Shyrokau, B. (mentor) Degree granting institution Delft University of Technology Programme Mechanical Engineering | Vehicle Engineering | Cognitive Robotics Date 2018-09-27 Abstract Ride comfort is one of the aspects of vehicles that manufacturers are constantly trying to improve, and seat vibration is an important contributing factor to ride comfort. The present study developed a seat vibration simulator for investigating the human perception of seat vibration and its application on ride comfort evaluation. The simulator was delivered as a fully functional system. The design requirements of the simulator were defined based on the review of proving ground measurements and previous studies. It concluded that the operating frequency range was 10-80Hz with excitation applied in both longitudinal and vertical directions. A compact and cost-effective design was proposed featuring a modular floating vibration platform and compact electrodynamics actuators. The Time Waveform Replication (TWR) process was implemented as the control strategy of the simulator and yielded good accuracy for tracking the target stimuli within the frequency range of 6-80Hz. The second part of the present study discussed the application of the seat vibration simulator. An experimental measurement method was proposed and validated for measuring the difference threshold of human perception of seat vibration, including the spectrum baseline method for generating reference stimulus from proving ground measurements, the modified A-AFC protocol for reducing the experiment duration, and the software for the fully automated experiment. The proposal also included the potential application of the difference threshold as a new ride comfort indicator. Subject ride comfortseat vibrationsimulatorhuman perceptiondifference threshold To reference this document use: http://resolver.tudelft.nl/uuid:c0dfd9c3-70e3-43b1-a7fd-6e89eca5c41e Part of collection Student theses Document type master thesis Rights © 2018 Liang Zhao Files PDF MSc_Thesis_LiangZhao.pdf 9.72 MB Close viewer /islandora/object/uuid:c0dfd9c3-70e3-43b1-a7fd-6e89eca5c41e/datastream/OBJ/view