Ergonomic evaluation of pilot oxygen mask designs

Lee, Wonsup; Yang, Xiaopeng; Jung, Dong‐Won; Park, Seikwon; Kim, Hee‐Eun; You, Heecheon

doi:10.1016/j.apergo.2017.10.003

Cited by 28 publications

(18 citation statements)

References 32 publications

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“…The revised oxygen masks developed in the present study showed a better fit than the existing masks by a usability evaluation in our follow-up study [36]. The prototypes of the revised designs of four sizes were manufactured using materials similar to the existing MBU-20/P and compared to the existing designs by 88 KAF pilots in terms of discomfort, facial contact pressure, and performance.…”

Section: Discussionmentioning

confidence: 67%

“…In the present study, the ergonomic designs of mask boundary could be found through the iterative virtual fit analysis method before prototyping. In our follow-up study, the prototype of the revised oxygen mask of the medium-wide size was fabricated first and found satisfactory to KAF pilots in terms of fit and comfort and minor design issues of the prototype (e.g., shape and thickness of flap) were reported as those to be improved; the prototypes of the other three sizes were fabricated and found satisfactory by KAF pilots [35,36].…”

Section: Discussionmentioning

confidence: 99%

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Development of a Virtual Fit Analysis Method for an Ergonomic Design of Pilot Oxygen Mask

et al. 2021

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In the ergonomic design of wearable products such as an oxygen mask, systematic design methods including the analysis of anthropometric information, evaluation of fit, and product design need to utilize 3D human scan data. The present study intends to develop a virtual fit analysis method that generates an ergonomic shape of an oxygen mask for fighter pilots based on 3D facial scans. The proposed virtual fit analysis method enables iteratively to revise the shape of an oxygen mask until an appropriate level of fit between the mask and a group of pilot faces is achieved. The proposed method of virtual fit analysis and design optimization was applied to find ergonomic shapes of oxygen masks for four size categories (small narrow, medium narrow, medium wide, and large wide) to accommodate 336 pilots of the Republic of Korea Air Force. The virtual fit analysis results in the study showed that the revised oxygen mask shapes achieved significantly higher accommodation percentages (4.8~88.7%) at facial areas (nasal root, nasal side, cheek, and chin) compared to the existing oxygen mask shapes. The proposed method can be applied to develop an ergonomic product design that fits the face and other human body parts.

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Section: Discussionmentioning

confidence: 67%

Section: Discussionmentioning

confidence: 99%

Development of a Virtual Fit Analysis Method for an Ergonomic Design of Pilot Oxygen Mask

et al. 2021

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“…The displacement in this study means a pushed-in distance of the skin surface caused by the positioning of the spline curvature toward the face. But, the position of the spline curvature was somewhat artificial and might not be very realistic, although the resulted contact pressure values were quite reasonable compare to the previous study [23,24]. The more realistic way of fitting the spline curvature to the faces needs to be studied.…”

Section: Discussionmentioning

confidence: 89%

“…As our previous research, the virtual fit analysis method [1,2,22] was proposed, which assessed the fit of an oxygen mask design (which was defined as spline curvature, either) onto 3D human faces by calculating Euclidean distances between the mask and facial surface. In the virtual fit analysis method, any material properties of both the face and mask were not considered; however, the prototype of the new oxygen mask designed based on the virtual fit analysis showed good fit and comfort compared to the existing one [23]. That was because not only a few facial dimensions but also the numerous facial shapes could be considered when the new design was found.…”

Section: Discussionmentioning

confidence: 99%

Estimation of Facial Contact Pressure Based on Finite Element Analysis

Lee

Kim

Molenbroek

et al. 2019

Advances in Intelligent Systems and Computing

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A 3D head and face scan data can be usefully applied in the ergonomic design of a wearable product such as an oxygen mask or a virtual reality (VR) headset to support the safety as well as comfort for a certain amount of a target population. This study is aimed to develop analysis and design methods of an ergonomic facial wearable products (e.g., pilot oxygen mask, VR headsets) based on numerous 3D face scan data (366 faces and 2,299 heads) through the template registration and the finite element (FE) analysis methods to predict the contact pressure between the face and a product. The application of the FE analysis on numerous 3D images to find an optimal form of a product is a novel approach in product design. The proposed methods on contact pressure analysis could be usefully applied for wearable products, which fit body parts.

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“…In headwear, a good fit is often required in order for the product to function properly. This is especially important in protective gear or medical products as the fit of these products could have a direct impact on the wearer's health and safety [1][2][3][4]. Thus, anthropometric information of the head and face is necessary to describe the variation in size and shape in order to develop a product that fits the user.…”

Section: Introductionmentioning

confidence: 99%

The Variation in 3D Face Shapes of Dutch Children for Mask Design

et al. 2021

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The use of 3D anthropometric data of children’s heads and faces has great potential in the development of protective gear and medical products that need to provide a close fit in order to function well. Given the lack of detailed data of this kind, the aim of this study is to map the size and shape variation of Dutch children’s heads and faces and investigate possible implications for the design of a ventilation mask. In this study, a dataset of heads and faces of 303 Dutch children aged six months to seven years consisting of traditional measurements and 3D scans were analysed. A principal component analysis (PCA) of facial measurements was performed to map the variation of the children’s face shapes. The first principal component describes the overall size, whilst the second principal component captures the more width related variation of the face. After establishing a homology between the 3D scanned face shapes, a second principal component analysis was done on the point coordinates, revealing the most prominent variations in 3D shape within the sample.

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Ergonomic evaluation of pilot oxygen mask designs

Cited by 28 publications

References 32 publications

Development of a Virtual Fit Analysis Method for an Ergonomic Design of Pilot Oxygen Mask

Development of a Virtual Fit Analysis Method for an Ergonomic Design of Pilot Oxygen Mask

Estimation of Facial Contact Pressure Based on Finite Element Analysis

The Variation in 3D Face Shapes of Dutch Children for Mask Design

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