Quantitative Evaluation of Vehicle Seat Driving Comfort During Short and Long Term Driving

Li, Mingyue; Gao, Zhenhai; Gao, Fei; Wang, Ziyang; Mei, Xingtai; Yu, Feng

doi:10.1109/access.2020.2999080

Cited by 12 publications

(3 citation statements)

References 33 publications

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“…There is a positive correlation between the average peak contact pressure and comfort score for the wrapped cushion and a negative correlation between the average contact pressure and comfort score. This conclusion is inconsistent with the finding of Li et al [ 36 ]. The reason is that this paper takes into account the differences in body stature and cushion contour.…”

Section: Discussioncontrasting

confidence: 99%

Influences of cushion contour on passenger comfort and interface pressure in high-speed train

Lian²,

Wu³

2023

PLoS ONE

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In this paper, eight different contoured cushions (S1-S8) in two categories (flat and wrapped) were designed to study the influence of different contoured cushions on passenger comfort in high-speed trains. Meanwhile, subjective data investigation by the comfort Likert Scale questionnaire and objective physical variables collection by the body-cushion contact pressure test was carried out. In addition, one-way ANOVA and Pearson correlation analysis were performed on the subjective survey and objective test data. The results show that the cushion contours had a significant effect on the subjective evaluation of the overall comfort of the participants, in which the overall comfort below the waist of the separated wrapped cushion S8 has the highest subjective comfort score. The overall comfort of the flat-front bulge type cushion S4 and the local comfort of the thighs and the root of the thighs were rated higher than other flat types. Under the flat cushion, the effect of stature characteristics (mainly weight and hip-width) on the overall comfort subjective ratings was insignificant, and the effect on the contact pressure distribution variables was significant, but the contact pressure distribution variables were not correlated with the comfort ratings. Under the wrapped cushion, the effect of stature characteristics on the overall comfort subjective ratings and contact pressure distribution variables was significant. There were positive and negative correlations between the average peak contact pressure and average contact pressure and comfort ratings, respectively.

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Section: Discussioncontrasting

confidence: 99%

Influences of cushion contour on passenger comfort and interface pressure in high-speed train

Lian²,

Wu³

2023

PLoS ONE

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“…Many studies have investigated the correlation between pressure variables and perceived comfort 16,20,44 . In our study, correlation analysis between SCE and BPDM showed that the major body pressure indicators correlated with the overall and local comfort of each area were not in complete alignment.…”

Section: Discussionmentioning

confidence: 99%

Quantitative evaluation of smart bed comfort in different typical conditions during resting.

Bai

Zhong

Liu

et al. 2023

Preprint

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In response to the general inability of smart beds to meet the health needs of chronic disease management and long-term care, this study proposed to investigate smart bed comfort in different typical conditions. The objective body pressure distribution and subjective comfort of participants were collected when the smart bed was in typical conditions. Pressure sensor mat was used to accurately measure pressure distribution. Participants reported in real time on the subjective comfort for each typical condition. Statistical data analysis intended to investigate changes in overall and local comfort when the smart bed is in different typical conditions, the correlation between perceived comfort and body pressure distribution. During the experiment, mean and peak pressures increased by up to 87.19% and 92.85%, respectively, owing to changes in smart bed conditions. However, major body pressure indicators correlated with the overall and local comfort of each area were not completely aligned. Statistical data analysis shows the im-portance of evening out forces and reducing peak pressures. Apart from mean pressure, peak pressure, particularly at the buttock, thigh and shank areas, is the key factor in comfort evaluation. Moreover, adequate bed board partitioning and linkage mechanism between adjacent boards better fit the body curve and enhance comfort. Accordingly, ensuring relatively balanced body forces and avoiding the feeling of weightlessness improve user comfort and health significantly. The succeeding study will further investigate the relationship between smart bed comfort and changes in free lying positions and moving activities, hoping to provide a comfort studies basis for long-term care.

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“…In addition to interface pressure, muscle activity is also important for the overall sitting experience, especially on a longhaul flight. Even though no definitive conclusions of direct connections between muscle activation and seating comfort have been drawn, the literature shows that fatigue causes discomfort in seating (Grujicic et al, 2010;Li et al, 2020). According to (Jørgensen et al, 1988), in long-haul flights, passengers may experience discomfort due to the fatigue in Upper Trapezius (UT) muscle.…”

Section: Introductionmentioning

confidence: 99%

The role of muscle forces in neck comfort for static seating: a pilot study

Alawneh,

Rassas,

Zhong

et al. 2024

Front. Mech. Eng.

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Aircraft seats play a key role in the competition between aircraft companies seeking to differentiate themselves in terms of passengers’ inflight experience. The seat design process relies on computational and experimental methods based on subjective measures, such as comfort rating questionnaires, and objective comfort indicators of seat-occupant interaction, such as contact pressure distribution and muscle activation. Previous studies around muscle activity for seating comfort assessment have primarily focused on more active scenarios or active systems. As such, there are limited studies about the role of muscle force in normal and relaxed sitting conditions, common in aircraft settings. This paper explores the relationship between activities of the neck muscles, sternocleidomastoid, and upper trapezius, measured from human participants seated sedentarily on conventional business aircraft seats and their perceived comfort with different backrest inclinations. The results show, for normal seating without neck pillow, no significant association is found between the backrest inclination and the neck’s comfort or muscle activation. For general seating across different backrest inclinations, a positive medium correlation between muscle activation and comfort is found in upper trapezius (R = 0.5332, p = 0.0187). This work serves as a pilot study of this new approach of comfort evaluation using muscle feedback in seat designing processes and highlights the posterior’s effect to seating experience in the neck region.

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Quantitative Evaluation of Vehicle Seat Driving Comfort During Short and Long Term Driving

Cited by 12 publications

References 33 publications

Influences of cushion contour on passenger comfort and interface pressure in high-speed train

Influences of cushion contour on passenger comfort and interface pressure in high-speed train

Quantitative evaluation of smart bed comfort in different typical conditions during resting.

The role of muscle forces in neck comfort for static seating: a pilot study

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