Modeling of human model for static pressure distribution prediction

Huang, Shenrong; Zhang, Zhifei; Xu, Zhongming; He, Yansong

doi:10.1016/j.ergon.2015.09.017

Cited by 19 publications

(32 citation statements)

References 26 publications

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“…19:512-517. Wagnac (2008) E=81.5 kPa Kuroda (2005) E=15 kPa Mergl (2004) E=1 kPa, E=15 kPa, E=20 kPa, E=30 kPa Volpe (2015), Todd (1994) Male: E= 64.8 kPa Female: E=47.5 kPa Neo-Hookean Moes (2002) E= 250 kPa G= 83 kPa Lin (2004) G= 700 kPa (muscle) G=234 kPa G= 30 kPa (fat) G=1 kPa Luboz (2014) E= 30 kPa (fat) G= 10 kPa E= 100 kPa (muscle) G=1 kPa Brosh (2000) G = 34.9 kPa Linder (2007) G = 25.33 kPa (muscle) G = 95 kPa (fat and skin) Levy (2014) G = 31.9 kPa (skin) µ=3179.37 kPa G = 0.286 kPa (fat) µ=28.5 kPa G = 7.1 kPa (muscles) µ=707.6 kPa Mooney -Rivlin Verver (2004), Cheng (2007), Siefert (2007, Makhsous (2007), Grujicic (2008), Xiaoming (2014), A 1 = 1.65 kPa A 2 = 3.35 kPa Mircheski (2014), Huang(2015), Guo (2016) Generalized Rivlin (2 nd order) Tang (2010), Mohanty (2014) C 10 =0.08556, C 01 =-0.05841, C 20 =0.039, C 11 =-0.02319, C 02 =0.00851, D 1 =3.65273, D 2 =0 Ogden Li (2013) (2 nd order) Fat: α1=-0.107647, μ1 = 0.118261e-2, α2=-0.318953, μ2 = 0.643855e-7…”

Section: Discussionmentioning

confidence: 99%

Finite element models of the thigh-buttock complex for assessing static sitting discomfort and pressure sore risk: a literature review

Savonnet

Wang

Duprey

2018

Computer Methods in Biomechanics and Biomedical Engineering

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Being seated for long periods, while part of many leisure or occupational activities, can lead to discomfort, pain and sometimes health issues. The impact of prolonged sitting on the body has been widely studied in the literature, with a large number of human-body finite element models developed to simulate sitting and assess seat-induced discomfort or to investigate the biomechanical factors involved. Here, we review the finite element models developed to investigate sitting discomfort or risk of pressure sores. Our study examines finite element models from twenty-seven papers, seventeen dedicated to assessing seating discomfort and ten dedicated to investigating pressure ulcers caused by prolonged sitting. The models' mesh composition and material properties are found to differ widely. These models share a lack of validation and generally make little allowance for anthropometric diversity.

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Section: Discussionmentioning

confidence: 99%

Finite element models of the thigh-buttock complex for assessing static sitting discomfort and pressure sore risk: a literature review

Savonnet

Wang

Duprey

2018

Computer Methods in Biomechanics and Biomedical Engineering

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“…Over the seat cushion, the maximum pressure obtained is located right below the ischial tuberosity, and high pressures appear under the thigh and the knee popliteal fossa in the sitting position [9]. Contact pressure is known to be varying considerably in different sitting positions.…”

Section: Seat Design Parameter Overviewmentioning

confidence: 99%

Review on vibration quality improvement of a passenger seat

Rikaz¹,

Abeysinghe²,

Perera³

2019

Vib. proced.

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Seats are one of the most significant components of vehicles. Customer's expectations for the comfort in vehicle seats rise continuously. Designing of automobile seats has always been a challenge for engineers as design parameters for automobile seats are complex. When it comes to the design of automobile seats, three design objectives, namely comfort, safety and health need to be fulfilled simultaneously. Vibration analysis plays a major role in engineering including the area of design for automobile comfort. Human structure, as a mechanical system, is immensely complex and the mechanical properties of human body readily undergo change. In addition, the vibration can initiate the development of pressure ulcer and other long-term diseases. Comfort measurement is challenging because of such factors as user subjectivity, seat geometry, occupant anthropometry and amount of time spent sitting. The purpose of this study is to identify the most significant parameters that make vibration in the vehicle seat which reduce passenger comfort and to identify the design parameters that can impact on appropriate seat design. Suspension systems, seat cushion and sitting postures are some of the vital parameters that have huge impacts on comfort analysis. This review could help in design of seat cushions with appropriate material properties and in analysing the comfort levels of human body to reduce the vibration transmissibility at the critical frequency bands.

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“…The F-scan pressure sensors (Hsiao et al 2002, Wettenschwiler et al, 2015 were used during the test to balance the load between the left and right feet. At that time, the standing pressure patterns were collected as well.…”

Section: Discussionmentioning

confidence: 99%

“…The pain pressure threshold is described as the minimum pressure that induces pain (Fischer, 1987). The importance of PPT has been recognized in recent times (Huang et al, 2015;Makhsous, et al, 2012;Rathleff, et al, 2013). However, pressure discomfort threshold (PDT) is more suitable as a design criteria in product design (Goonetilleke, 2001).…”

Section: Introductionmentioning

confidence: 99%

Pressure thresholds and stiffness on the plantar surface of the human foot

2016

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The objective was to develop a methodology to assess Pressure Discomfort Thresholds (PDT), Pressure Pain Thresholds (PPT), and tissue stiffness on the plantar surface of the foot. Ten male and ten female participants volunteered for the study. Foot landmarks were used to create a standardized grid-type template of 95 points. For each test point, PPT and PDT values were obtained, and stiffness was calculated for each of the twenty participants. Cluster analyses were performed to determine the regions of similarity for the three dependent variables, PPT, PDT and stiffness. Moran's-I-index was used to determine the spatial auto correlations. The use of k-means clustering showed five distinct clusters while the three dependent variables showed strong correlations to each other. Morisita's similarity index was used to check the similarity of the grid among all participants. Both male and female participants showed a Morisita's index greater than 0.7 confirming the reliability of the foot template.Practitioner Summary: Pressure Discomfort thresholds (PPT), Pressure pain thresholds (PPT) and tissue stiffness were evaluated at 95 points on the plantar surface of the foot. The PPT and related PDT map are useful to design the footbeds of shoes. Based on the data collected, five distinct clusters of locations were identified.

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Modeling of human model for static pressure distribution prediction

Cited by 19 publications

References 26 publications

Finite element models of the thigh-buttock complex for assessing static sitting discomfort and pressure sore risk: a literature review

Finite element models of the thigh-buttock complex for assessing static sitting discomfort and pressure sore risk: a literature review

Review on vibration quality improvement of a passenger seat

Pressure thresholds and stiffness on the plantar surface of the human foot

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