频繁制动工况下货车车轮火灾危险性研究  

Research on the fire fatalness of the truck's tire under frequent braking circumstances

作　　者：张良[1] 张得胜[1] 赵祥[1] 郭宇航[1] 徐龙飞[1] 赵晓阳[1] 

机构地区：[1]公安部天津消防研究所,天津300381

出　　处：《消防科学与技术》2017年第6期878-880,共3页Fire Science and Technology

基　　金：中国标准化研究院中央基本科研业务资助项目(282013Y-3064-2013)

摘　　要：连续制动工况下货车车轮制动蹄与制动鼓之间的摩擦、橡胶轮胎与地面之间的摩擦产生热量,长时间的高温蓄热容易导致火灾发生。针对上述问题,结合仿真计算得出制动鼓的温度分布,根据仿真结果布置温度采集点,通过货车的道路实验研究货车连续制动工况下轮胎表面的高温区域和温升变化,确定引发火灾的热源,为货车车轮起火的认定提供数据支撑。Under frequent braking circumstances, the heat source of the truck's tire mainly contains the friction between the brake shoe and the brake drum, and the friction between the rubber tyre and the ground. Long-playing at high temperature and thermal storage may lead to fire easily. According to this, combining with simula?tion, the temperature collection spots were determined in road test to study the high-temperature area and temperature changes of the tyre under frequent braking circumstances. The thermal source leading to the tire fire was found. This study provides data support for the related fire investigation.

关 键 词：汽车火灾 制动鼓 高温区域 仿真计算 道路实验 火灾调查 

分 类 号：X928.7[环境科学与工程—安全科学] TU998.12[建筑科学—市政工程]