Numerical model development to predict the behaviour of infant/neonate crash dummy restrained inside of an incubator under deceleration

IF 3.4 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY International Journal of Mechanical and Materials Engineering Pub Date : 2021-07-31 DOI:10.1186/s40712-021-00133-7

A. Rabiee, H. Ghasemnejad, N. Hitchins, J. Watson, J. Roberts, M. Khoory

{"title":"Numerical model development to predict the behaviour of infant/neonate crash dummy restrained inside of an incubator under deceleration","authors":"A. Rabiee, H. Ghasemnejad, N. Hitchins, J. Watson, J. Roberts, M. Khoory","doi":"10.1186/s40712-021-00133-7","DOIUrl":null,"url":null,"abstract":"<div><p>In this paper, advanced finite element (FE) methods are developed to investigate the effect of deceleration on the crash dummy test complied with British Standard Engineering (BS EN 1789). These techniques, which are related to material modelling, joints and contacts, offer an advanced numerical model representing an infant incubator with all complex boundary conditions and design contents. It is shown that the response of an infant incubator is a function of the ratchet straps, the tension on the belts, the belt type and the distance of the belts from the edges of the incubator, which can significantly affect the experienced acceleration, by the infant. The validation process is performed against experimental studies and various case parameters such as crash dummy mass and negative acceleration impulse are discussed in detail. The developed numerical model is capable to predict the behaviour of the crash dummy and the incubator in terms of acceleration, trajectory and kinematics by less than 8% error.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"16 1","pages":""},"PeriodicalIF":3.4000,"publicationDate":"2021-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-021-00133-7","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Mechanical and Materials Engineering","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1186/s40712-021-00133-7","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

In this paper, advanced finite element (FE) methods are developed to investigate the effect of deceleration on the crash dummy test complied with British Standard Engineering (BS EN 1789). These techniques, which are related to material modelling, joints and contacts, offer an advanced numerical model representing an infant incubator with all complex boundary conditions and design contents. It is shown that the response of an infant incubator is a function of the ratchet straps, the tension on the belts, the belt type and the distance of the belts from the edges of the incubator, which can significantly affect the experienced acceleration, by the infant. The validation process is performed against experimental studies and various case parameters such as crash dummy mass and negative acceleration impulse are discussed in detail. The developed numerical model is capable to predict the behaviour of the crash dummy and the incubator in terms of acceleration, trajectory and kinematics by less than 8% error.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

建立数字模型，以预测被限制在保温箱内的婴儿/新生儿碰撞假人在减速时的行为

本文开发了先进的有限元（FE）方法，用于研究减速对符合英国工程标准（BS EN 1789）的碰撞假人测试的影响。这些技术与材料建模、连接和接触有关，提供了一种先进的数值模型，代表了具有所有复杂边界条件和设计内容的婴儿培养箱。研究表明，婴儿培养箱的响应是棘轮带、传送带张力、传送带类型和传送带与培养箱边缘距离的函数，这些因素会显著影响婴儿所经历的加速度。根据实验研究进行了验证，并详细讨论了各种情况参数，如碰撞假人质量和负加速度脉冲。所开发的数值模型能够预测碰撞假人和保温箱在加速度、轨迹和运动学方面的行为，误差小于 8%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊