دورية أكاديمية

Impact of the Development of the Design of Firefighter Helmets on the Mechanical Shock Absorption Capacity

التفاصيل البيبلوغرافية
العنوان: Impact of the Development of the Design of Firefighter Helmets on the Mechanical Shock Absorption Capacity
المؤلفون: Agata Walczak, Daniel Pieniak, Paweł Lonkwic, Włodzimierz Kupicz, Szymon Ptak, Piotr Piątek, Wiktor Wąsik, Artur Renkas
المصدر: Advances in Sciences and Technology, Vol 17, Iss 6, Pp 171-184 (2023)
بيانات النشر: Lublin University of Technology, 2023.
سنة النشر: 2023
المجموعة: LCC:Engineering (General). Civil engineering (General)
مصطلحات موضوعية: impact loads, fire helmet, cervical spine loads, mechanical impact depreciation, Engineering (General). Civil engineering (General), TA1-2040
الوصف: A firefighter's helmet is used as a basic personal protective equipment item. The purpose of the helmet is to absorb a part of mechanical impact acting towards the rescuer's cervical spine, which may lead to its injury. The aim of the study was to determine the effect of changes in the helmet design on the threshold passive forces transferred to the firefighter's cervical spine. The test subjects were firefighter’s helmets compliant with the European standard for helmets used by fire brigades. The study was carried out under model conditions, using special equipment with a head model and an additional force sensor placed under it, where the cervical spine is anatomically located. The central impact energy was assumed to be 60 J. A semi-spherically ended beater was used. The experimentally determined force-displacement characteristics revealed two phases of force increase. Using polyurethane foam as a cushioning insert instead of the expanded polyester used in older designs reduced values of forces in the first phase of the characteristic. There were many cases where the critical passive force value was exceeded, which would have resulted in the cervical spine injury. Modifications in material selection and component manufacturing technology affect the protective capabilities of firefighter’s helmets and result in their improvement. Nevertheless, helmets that are currently in use are still affected by forces whose values exceed the ones that are considered to be safe for a firefighter.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2080-4075
2299-8624
22998624
Relation: http://www.astrj.com/Impact-of-the-Development-of-the-Design-of-Firefighter-Helmets-on-the-Mechanical,171753,0,2.html; https://doaj.org/toc/2080-4075; https://doaj.org/toc/2299-8624
DOI: 10.12913/22998624/171753
URL الوصول: https://doaj.org/article/11d681b5e6be4beb9baab15d106fd82f
رقم الأكسشن: edsdoj.11d681b5e6be4beb9baab15d106fd82f
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:20804075
22998624
DOI:10.12913/22998624/171753