International Journal of Industrial Ergonomics最新文献_第10页

Pilot workload measurement model based on task complexity analysis 基于任务复杂性分析的试点工作量测量模型

IF 2.5 2区工程技术

International Journal of Industrial Ergonomics Pub Date : 2024-09-05 DOI: 10.1016/j.ergon.2024.103637

Ziyi Wang, Shuang Liu, Xiaoru Wanyan, Yuqing Dang, Xingjiang Chen, Xingjuan Zhang

{"title":"Pilot workload measurement model based on task complexity analysis","authors":"Ziyi Wang, Shuang Liu, Xiaoru Wanyan, Yuqing Dang, Xingjiang Chen, Xingjuan Zhang","doi":"10.1016/j.ergon.2024.103637","DOIUrl":"10.1016/j.ergon.2024.103637","url":null,"abstract":"<div><p>Developing pilot workload assessment method is conducive to improving pilot work efficiency and enhancing the reliability of flight operations. In this study, a pilot workload model based on task complexity analysis is built to predict the changing trend of workload under various task scenarios with different task difficulties. Based on multiple resource theory and entropy theory, a pilot workload model is constructed by integrating the analysis of node task complexity and structure task complexity. Further, the Bedford scale and time pressure survey are both adopted to subjectively investigate the workload of 25 flying cadets in the traffic pattern task to verify the model. The correlation coefficients between the theoretical prediction results and the actual measurement results are not less than 0.85, supporting the validity of the model. Besides, compared with the original Bedford workload scale, consideration of time pressure can effectively improve the consistencies between the theoretical prediction results of the model and the actual evaluation results of the flying cadets, indicating the advantage of strengthening the time pressure dimension when using the classic Bedford workload scale to measure the pilot workload. The pilot workload measurement model based on task complexity analysis proposed in this study can provide method support for the optimization designs of flight tasks and pilot training.</p></div>","PeriodicalId":50317,"journal":{"name":"International Journal of Industrial Ergonomics","volume":"104 ","pages":"Article 103637"},"PeriodicalIF":2.5,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142147986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Establishing a user demand hierarchy model driven by a mental model for complex operating systems 建立由复杂操作系统心智模型驱动的用户需求层次模型

IF 2.5 2区工程技术

International Journal of Industrial Ergonomics Pub Date : 2024-09-01 DOI: 10.1016/j.ergon.2024.103634

Wenyu Wu, Xuan Sun, Ziwei He, Weiran Rong, Hao Fan, Chengqi Xue

{"title":"Establishing a user demand hierarchy model driven by a mental model for complex operating systems","authors":"Wenyu Wu, Xuan Sun, Ziwei He, Weiran Rong, Hao Fan, Chengqi Xue","doi":"10.1016/j.ergon.2024.103634","DOIUrl":"10.1016/j.ergon.2024.103634","url":null,"abstract":"<div><p>In complex human-computer interactions, issues such as task failures, system malfunctions, and frequent accidents caused by user errors are common. Therefore, it is necessary to study complex system interactions to enhance overall efficiency. This study focuses on the task interface of a digital twin system for computer numerical control (CNC) machine tools and examines the relationship between the user mental model and interface design elements. Key mental information is obtained through questionnaires and interviews, forming the basis for establishing a user mental model. High-frequency information words are extracted, experimental samples are designed, and importance rating surveys are conducted. Quantitative analysis methods, including factor analysis and weight calculation, are utilized to analyze the needs of target users. Consequently, a user demand hierarchy model is constructed. This approach aims to effectively reduce user errors in the human-computer interaction process within complex systems and enhance cognitive efficiency.</p></div>","PeriodicalId":50317,"journal":{"name":"International Journal of Industrial Ergonomics","volume":"103 ","pages":"Article 103634"},"PeriodicalIF":2.5,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142099275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessing the accuracy of a wireless sensor system for estimating lumbar moments during manual lifting tasks considering the effects of load weight, asymmetry, and height 考虑到负载重量、不对称和身高的影响，评估用于估算人工搬运过程中腰部力矩的无线传感器系统的准确性

IF 2.5 2区工程技术

International Journal of Industrial Ergonomics Pub Date : 2024-09-01 DOI: 10.1016/j.ergon.2024.103636

Iván Nail-Ulloa , Rong Huangfu , Michael Zabala , Dania Bani Hani , Nathan Pool , Howard Chen , Mark C. Schall Jr. , Richard Sesek , Sean Gallagher

{"title":"Assessing the accuracy of a wireless sensor system for estimating lumbar moments during manual lifting tasks considering the effects of load weight, asymmetry, and height","authors":"Iván Nail-Ulloa , Rong Huangfu , Michael Zabala , Dania Bani Hani , Nathan Pool , Howard Chen , Mark C. Schall Jr. , Richard Sesek , Sean Gallagher","doi":"10.1016/j.ergon.2024.103636","DOIUrl":"10.1016/j.ergon.2024.103636","url":null,"abstract":"<div><p>This study assessed the accuracy of L5/S1 moment estimates calculated with an Inertial Motion Capture (IMC) system during an asymmetrical and variable height lifting task. The effects of load weight, asymmetry, and lifting height on estimates of lumbar moment have not been comprehensively considered in studies using IMC systems. Thirty-six participants engaged in tasks involving three loads, lifting heights, and trunk rotation angles. Lumbar moments were calculated using bottom-up and top-down biomechanical models. Gold-standard Optical Motion Capture (OMC) and Force Plates (FP) were used as the reference. A randomized block partially confounded design was used to compare the root mean square errors (RMSE) between the IMC and OMC-based reference estimates. The IMC system's estimated peak moments were 12%–13% lower than those estimated using the gold standard OMC-BU inverse dynamics, while the RMSE varied between 19 and 21 Nm. A Load*Height interaction was found; a trend was identified where the RMSE values increased as both the load and height levels increased. The angle did not show a significant effect on any of the tested scenarios. A close correspondence between the IMC and OMC-based moment estimates was established, with the load being the main factor affecting the differences between systems. The IMC system shows potential for use in occupational settings to capture data on the lumbar moments of workers, which could be utilized to assess ergonomic risk.</p></div>","PeriodicalId":50317,"journal":{"name":"International Journal of Industrial Ergonomics","volume":"103 ","pages":"Article 103636"},"PeriodicalIF":2.5,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142099274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The relationship between emotions and HRV under the stimulation of bra images 胸罩图像刺激下情绪与心率变异的关系

IF 2.5 2区工程技术

International Journal of Industrial Ergonomics Pub Date : 2024-09-01 DOI: 10.1016/j.ergon.2024.103633

Xingyu Wen , Yujuan Wang , Chi Liu

{"title":"The relationship between emotions and HRV under the stimulation of bra images","authors":"Xingyu Wen , Yujuan Wang , Chi Liu","doi":"10.1016/j.ergon.2024.103633","DOIUrl":"10.1016/j.ergon.2024.103633","url":null,"abstract":"<div><p>It is a stressful ordeal in general to buy bras online aimlessly. The wise approach for eCommerce platform is to use emotion recognition to effectively assess consumers’ needs through the bra images, which can quickly close their preferences and accurately recommend them suitable bras. However, the significant physiological features that can be used for emotion recognition in fashion are still in the exploratory stage. This study focuses on the relationship between cardiac activity and emotional responses (the different levels of Satisfaction (S) and Attractiveness (A) under the stimulation of bra images. Firstly, we labelled 96 bra images in the dimensions and selected 45 bra images to make three groups of emotional stimuli using k-means clustering analysis. Then, we collected Photoplethysmogram (PPG) signals from 46 subjects consisting of 11 males and 35 females simulated by three groups of the stimuli, extracted 10 metrics of heart rate variability (HRV), and then analyzed the relationships between HRV and emotions based on their subjective evaluation. The males and females have different cardiac activity patterns under the same emotion, that the parasympathetic of males are more active than females. In a non-neutral emotion, the parasympathetic nervous system would keep an activated state. However, it is dominated by the parasympathetic nervous system whether in high or low satisfaction. While high and low attractiveness are respectively dominated by the sympathetic and parasympathetic nerves. The results of this study have certain significance for understanding the physiological phenomenon of emotions and further help to explore emotion recognition technology which can be used in product development to enhance the competitiveness of enterprises.</p></div>","PeriodicalId":50317,"journal":{"name":"International Journal of Industrial Ergonomics","volume":"103 ","pages":"Article 103633"},"PeriodicalIF":2.5,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142099328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of prefabricated arch-support insole hardness on foot pressure and muscle activity in mountaineer porters during load-bearing tasks in mountainous terrain 预制足弓支撑鞋垫硬度对登山搬运工在山地负重时足部压力和肌肉活动的影响

IF 2.5 2区工程技术

International Journal of Industrial Ergonomics Pub Date : 2024-08-26 DOI: 10.1016/j.ergon.2024.103635

Wei-Hsun Tai , Chiou-Jong Chen , Li-Wen Liu , Hsien-Te Peng

{"title":"Effects of prefabricated arch-support insole hardness on foot pressure and muscle activity in mountaineer porters during load-bearing tasks in mountainous terrain","authors":"Wei-Hsun Tai , Chiou-Jong Chen , Li-Wen Liu , Hsien-Te Peng","doi":"10.1016/j.ergon.2024.103635","DOIUrl":"10.1016/j.ergon.2024.103635","url":null,"abstract":"<div><h3>Background</h3><p>The study aimed to compare the effects of medium hardness and high hardness arch-support insoles, with the latter modified by a soft forefoot pad, on foot pressure distribution and muscle activation during high-load carrying tasks in authentic mountainous trail environments.</p></div><div><h3>Methods</h3><p>Sixteen male mountaineer porters with experience in high-load carrying tasks participated in the experiments. They wore commercially available prefabricated arch-support insoles, specifically referred to as medium hardness arch-support material (MH) and high hardness arch-support material attached a 1-mm soft sponge pad to the forefoot area (HHSF) during uphill and downhill walking tasks with a 25-kg load. Foot pressure and muscle activation were measured using wireless pressure distribution insoles and a wireless surface electromyography system, respectively.</p></div><div><h3>Results</h3><p>The HHSF showed significantly higher perceived comfort scores and reduced foot pressure in specific regions during downhill walking (<em>p</em> < 0.05). It exhibited increased peak foot pressure in the forefoot during uphill walking (<em>p</em> < 0.05). The MH showed greater foot pressure in the second metatarsal during downhill walking and a larger contact area in the midfoot during uphill walking (<em>p</em> < 0.05). Muscle activation did not differ significantly between the two insoles (<em>p</em> > 0.05).</p></div><div><h3>Conclusion</h3><p>The study indicates that combining a high hardness arch-support insole with a soft forefoot pad may enhance comfort and potentially reduce foot injury risks, and improves foot propulsion and pressure distribution.</p></div>","PeriodicalId":50317,"journal":{"name":"International Journal of Industrial Ergonomics","volume":"103 ","pages":"Article 103635"},"PeriodicalIF":2.5,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142076338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

3D young female waist-leg modelling based on a hybrid 3d-scan and 2d-image approach 基于 3d 扫描和 2d 图像混合方法的年轻女性腰腿三维建模

IF 2.5 2区工程技术

International Journal of Industrial Ergonomics Pub Date : 2024-08-23 DOI: 10.1016/j.ergon.2024.103632

Xinwei Chen , Lingling Zhang , Bingfei Gu

{"title":"3D young female waist-leg modelling based on a hybrid 3d-scan and 2d-image approach","authors":"Xinwei Chen , Lingling Zhang , Bingfei Gu","doi":"10.1016/j.ergon.2024.103632","DOIUrl":"10.1016/j.ergon.2024.103632","url":null,"abstract":"<div><p>To enhance the pant fit for individuals, this study proposed a method for constructing a 3D waist-leg mannequin based on body images and 3D point-clouds of young women. A total of 288 females aged 18–25 were measured using 3D body scanner and 2D image-shooting method to obtain 3D point-cloud data and body images. The 3D point-cloud data were analyzed to extract 33 sectional curves, including the cross-sectional curves and crotch curve, to identify key points on each curve. For the body images, key parameters related to curve position and shape, such as height, width, and thickness, were automatically extracted for modelling parameters. Curve generation rules were established based on correlation and regression analysis of the key points. The Individualized 3D mannequin was simulated by adjusting the curve centers at each characteristic position to align with the body images, and was validated by comparing the body sizes of the 3D mannequin with the actual measurements. The results indicated that the final simulated mannequin accurately represents the basic characteristics of the waist-leg shape, with significance values above 0.05, which showed the feasibility of the modelling method. Furthermore, 73.9% of the samples had an absolute error of less than 1 cm between the 3D mannequin and the actual measurements. This study can facilitate 3D body modelling from body images, and provide a reference to develop individualized apparel patterns for clothing customization.</p></div>","PeriodicalId":50317,"journal":{"name":"International Journal of Industrial Ergonomics","volume":"103 ","pages":"Article 103632"},"PeriodicalIF":2.5,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142050253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The psychophysical and physiological responses of individuals with varying body fat percentages and physical fitness levels during one-handed carrying on an inclined surface 不同体脂率和体能水平的人在斜面上单手搬运时的心理物理和生理反应

IF 2.5 2区工程技术

International Journal of Industrial Ergonomics Pub Date : 2024-08-21 DOI: 10.1016/j.ergon.2024.103615

Duha Ali , Mark Schall , Sean Gallagher , Richard Sesek , Mashnur Rashid , L. Bruce Gladden

{"title":"The psychophysical and physiological responses of individuals with varying body fat percentages and physical fitness levels during one-handed carrying on an inclined surface","authors":"Duha Ali , Mark Schall , Sean Gallagher , Richard Sesek , Mashnur Rashid , L. Bruce Gladden","doi":"10.1016/j.ergon.2024.103615","DOIUrl":"10.1016/j.ergon.2024.103615","url":null,"abstract":"<div><p>One-handed carrying is a demanding and understudied form of manual material handling (MMH). Existing studies have not adequately considered the roles of body fat and physical fitness on the psychophysical and physiological responses of individuals performing one-handed carrying. A laboratory treadmill study involving 16 male and 16 female participants was completed to characterize the physiological and psychophysical responses incurred by one-handed MMH on a flat and inclined surface. Participants walked at a speed of 3.2 km/h for a distance of 96.5 m over four experimental conditions: No-load and flat surface [NF], no-load and inclined surface [NI], load and flat surface [LF], load and inclined surface [LI]). The results indicated generally consistent main effects of body fat, physical fitness, load, and incline on psychophysical and physiological responses, highlighting the inadequacy of current MMH guidance in addressing the impact of body fat percentage and physical fitness on one-handed carrying task performance.</p></div>","PeriodicalId":50317,"journal":{"name":"International Journal of Industrial Ergonomics","volume":"103 ","pages":"Article 103615"},"PeriodicalIF":2.5,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142020833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Personalized social reading: The effect of text markers and font size on the reading experience 个性化社交阅读：文本标记和字体大小对阅读体验的影响

IF 2.5 2区工程技术

International Journal of Industrial Ergonomics Pub Date : 2024-08-18 DOI: 10.1016/j.ergon.2024.103626

Jianfeng Wu , Dongfang Jiao , Yuting Cai , Songyang Guo , Yuyun Chen , Chengmin Li , Hongchun Yang

{"title":"Personalized social reading: The effect of text markers and font size on the reading experience","authors":"Jianfeng Wu , Dongfang Jiao , Yuting Cai , Songyang Guo , Yuyun Chen , Chengmin Li , Hongchun Yang","doi":"10.1016/j.ergon.2024.103626","DOIUrl":"10.1016/j.ergon.2024.103626","url":null,"abstract":"<div><p>This study investigated how text markers (TMs) and font size (FS) affect the reading experience. College students (N = 45) read textual material presented in four TM formats (underline, highlight, margin note at right, and margin note at end) and three FSs (8 pt, 12 pt, and 14 pt). Their reading experience (immersion, social presence, and satisfaction) was assessed through subjective postreading ratings and interpreted through eye-tracking data. The results showed that different forms of TM affected the reading experience. Effects of TMs on immersion, social presence, and satisfaction were identified, along with interaction effects between TM and FS on immersion, first fixation duration, and total fixation duration ratio. Specifically, reading experience at smaller FSs (8 pt) was more likely to be influenced by TMs. Regarding eye-tracking metrics, first fixation duration was positively correlated with immersion, and total fixation duration ratio was negatively correlated with immersion. Although no correlation was found between immersion and social presence, a negative correlation was found in the actual reading process (i.e., the stronger the perception of the social presence of TMs, the lower the immersion). These findings can provide insights useful for the design of TMs in social reading from a user-experience perspective.</p></div>","PeriodicalId":50317,"journal":{"name":"International Journal of Industrial Ergonomics","volume":"103 ","pages":"Article 103626"},"PeriodicalIF":2.5,"publicationDate":"2024-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142002430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Flashlight model: Integrating attention distribution and attention resources for pilots’ visual behaviour analysis and performance prediction 手电筒模型：整合注意力分布和注意力资源，用于飞行员视觉行为分析和性能预测

IF 2.5 2区工程技术

International Journal of Industrial Ergonomics Pub Date : 2024-08-17 DOI: 10.1016/j.ergon.2024.103630

Mengtao Lyu , Fan Li , Xingda Qu , Qinbiao Li

{"title":"Flashlight model: Integrating attention distribution and attention resources for pilots’ visual behaviour analysis and performance prediction","authors":"Mengtao Lyu , Fan Li , Xingda Qu , Qinbiao Li","doi":"10.1016/j.ergon.2024.103630","DOIUrl":"10.1016/j.ergon.2024.103630","url":null,"abstract":"<div><p>Pilot performance is almost the last line of defense in aircraft safety. Recent years have seen a surge in research aimed at utilizing eye-tracking technology to predict pilot performance, enhancing aviation safety margins. A decline in pilot performance is often attributed to either misdirected attention towards irrelevant tasks or inefficient information processing owing to limited attention resources. Previous research has shown that eye-tracking data can effectively capture these issues and provide accurate performance predictions. Nevertheless, the existing studies either focus on attention distribution or attention resources separately, neglecting the complex interactions between them. To address this gap, our study proposes a synthesized Flashlight model-based eye-tracking analysis for pilot performance prediction, integrating the two perspectives. Accordingly, the combined AOI-gaze metrics are proposed to offer a more nuanced analysis of information processing across specific Areas of Interest (AOIs), thereby enhancing the analysis of gaze metrics. We examined the efficacy of the combined AOI-gaze metrics in the Gradient-boosted decision trees(GBDT) model for pilot performance prediction and compared them with other widely used eye-tracking metrics in a simulated flight experiment case study. Moreover, we employed the SHapley Additive exPlanations (SHAP) method to identify the most influential eye-tracking measurements for pilots’ performance prediction. The result demonstrated that the selected eye-tracking measurements obtained the highest accuracy in performance prediction.</p></div>","PeriodicalId":50317,"journal":{"name":"International Journal of Industrial Ergonomics","volume":"103 ","pages":"Article 103630"},"PeriodicalIF":2.5,"publicationDate":"2024-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141997357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Predicting the seat transmissibility of a seat-occupant system exposed to the whole-body vibration with combined artificial neural network and genetic algorithm 利用人工神经网络和遗传算法组合预测暴露于全身振动的座椅乘员系统的座椅透射率

IF 2.5 2区工程技术

International Journal of Industrial Ergonomics Pub Date : 2024-08-16 DOI: 10.1016/j.ergon.2024.103627

Xiaolu Zhang , Xichen Song , Xinwei Wang , Peijin Yu , Yi Qiu , Yang Miao

{"title":"Predicting the seat transmissibility of a seat-occupant system exposed to the whole-body vibration with combined artificial neural network and genetic algorithm","authors":"Xiaolu Zhang , Xichen Song , Xinwei Wang , Peijin Yu , Yi Qiu , Yang Miao","doi":"10.1016/j.ergon.2024.103627","DOIUrl":"10.1016/j.ergon.2024.103627","url":null,"abstract":"<div><p>Inter-subject variability and seat conditions are complex and may affect the dynamic responses of the occupant-seat system to vibration. This research was aimed to clarify the contributions associated with the occupant and the seat to seat transmissibilities and thus developed an optimized artificial neural network model with the genetic algorithm to represent the cross-axis coupling and nonlinearity of seat transmissibilities with various seat conditions. Different vibration magnitudes, backrest inclinations, cushion thicknesses, frequencies and the mass of 12 subjects were set as the input parameters to predict the vertical in-line and horizontal cross-axis transmissibilities. For the predictive performance metrics (RMSE and R2), the mean values (0.118 and 0.889) were obtained for both seat transmissibilities within the testing data sets from BP-ANN models, and those with GA-BP-ANN models were optimized with 0.072 and 0.947, respectively. The seat transmissibility predicted from the model exhibited resonance behavior similar to that observed in the whole-body vibration test. With the optimization of the genetic algorithm, GA-BP-ANN models can provide enhanced predictions of the cross-axis coupling and nonlinearity of seat transmissibilities when compared to BP-ANN models.</p></div>","PeriodicalId":50317,"journal":{"name":"International Journal of Industrial Ergonomics","volume":"103 ","pages":"Article 103627"},"PeriodicalIF":2.5,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141992801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0