Seating Comfort and Biomechanical Application

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Applied Biosciences and Bioengineering".

Deadline for manuscript submissions: closed (31 March 2024) | Viewed by 1138

Special Issue Editors


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Guest Editor
Department of Engineering and Design, College of Engineering and Design, Shibaura Institute of Technology, Tokyo 135-8548, Japan
Interests: seating comfort; human modeling; automotive ergonomics; biomechanics; design science

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Guest Editor
Univ Lyon, Univ Gustave Eiffel, Université Claude Bernard Lyon 1, LBMC UMR_T9406, F69622 Lyon, France
Interests: digital human modeling; biomechanics; ergonomics; seating; automotive

Special Issue Information

Dear Colleagues,

We spend most of the day in a sitting position, excluding sleeping time. For this reason, there are various types of "sitting" for various people in various places, and there are chairs and seats that support them. In fact, we unconsciously use many different types of seating.

Our lives have changed drastically in the recent COVID-19 situation. The need for a better living environment has increased due to an increase in the amount of time spent at home working at a desk as a result of the spread of remote work. The importance of improving the comfort of chairs and indoor environments has increased significantly. On the other hand, the health effects of continuous sitting posture have also become a topic of discussion.

In addition, the comfort of vehicles is also undergoing reconsideration, as automatic driving technology is converting drivers into passengers. Furthermore, new forms of mobility, such as new types of aircraft and small mobility vehicles, are being born.

In other words, a paradigm shift in seating is in motion.

In this Special Issue, we would like to focus on the latest research results on sitting comfort and research methodologies, especially the application of biomechanics.

In comfort research, many new methods have been developed that are not only based on conventional methodologies but also on small wearable sensors, image recognition, and many other classical methods. In addition, more detailed human body models, personalized models, and open-source analysis systems have been developed.

We encourage you to submit your latest research results on these comfort-related topics. We look forward to hearing from you.

Prof. Dr. Akinari Hirao
Dr. Xuguang Wang
Guest Editors

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Keywords

  • seating comfort
  • sitting posture
  • pressure distribution
  • human model for comfort
  • comfort measurement
  • prolonged sitting
  • fatigue
  • posture monitoring
  • sedentary work
  • dynamic comfort

Published Papers (1 paper)

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Research

24 pages, 5038 KiB  
Article
Development of a 7-DOF Biodynamic Model for a Seated Human and a Hybrid Optimization Method for Estimating Human-Seat Interaction Parameters
by Abeeb Opeyemi Alabi, Byoung-Gyu Song, Jong-Jin Bae and Namcheol Kang
Appl. Sci. 2023, 13(18), 10065; https://doi.org/10.3390/app131810065 - 06 Sep 2023
Viewed by 735
Abstract
Existing biodynamic models adopt apparent mass and seat-to-head transmissibility to predict the response of seated humans to whole-body vibration, limiting their ability to capture the actual response of distinct body segments in different excitation conditions. This study systematically develops a 7-DOF seated human [...] Read more.
Existing biodynamic models adopt apparent mass and seat-to-head transmissibility to predict the response of seated humans to whole-body vibration, limiting their ability to capture the actual response of distinct body segments in different excitation conditions. This study systematically develops a 7-DOF seated human model, a vibration experiment, and a novel hybrid optimization to estimate unknown mechanical parameters and predict the response of different human body segments to vertical vibrations. Experimental results showed that the upper trunk and head were most susceptible to transmitted vibrations. Combining the 7-DOF model and HOM resulted in accelerated optimization, improved numerical stability, and significant minimization of the objective function value compared to conventional algorithms. Notably, the estimated parameters, particularly stiffness, remained consistent regardless of increasing excitation magnitude or change in the body segment data used. Additionally, the model captured the non-linearity in human biodynamics through stiffness softening. These findings are applicable in seating systems optimization for comfort and safety. Full article
(This article belongs to the Special Issue Seating Comfort and Biomechanical Application)
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