摘要
建立了跨海桥上厢式货车的空气动力学和系统动力学单向耦合数值计算模型,并经风洞试验验证。对该模型进行仿真,以研究桥上货车在阶跃阵风作用下的高速气动稳定性,比较分析了不同类型和结构参数的挡风屏障的抗风性能及其对汽车气动稳定性的影响规律。最后提出了桥上汽车风致行车安全和桥梁抗风设计的量化评价方法。
An aerodynamics and system dynamics-based unidirectional coupling numerical model for a van truck on the sea-crossing bridge is established and verified by wind tunnel test.Then a simulation is conducted to study the high-speed aerodynamic stability of a truck on the bridge under the action of step gust and comparative⁃ly analyze the wind-resistance performance of the wind barrier with different types and structural parameters and its effects on the aerodynamic stability of vehicle.Finally,a quantified evaluation method for the wind-induced diving safety and the wind resistance design of bridges is put forward.
作者
袁志群
吕恒庆
林立
林晓波
高秀晶
Yuan Zhiqun;LüHengqing;Lin Li;Lin Xiaobo;Gao Xiujing(School of Mechanical and Automotive Engineering,Xiamen University of Technology,Xiamen 361024;Central South University,Key Laboratory of Traffic Safety on Track,Ministry of Education,Changsha 410075;School of Civil Engineering and Architecture,Xiamen University of Technology,Xiamen 361024;College of Civil Engineering,Fuzhou University,Fuzhou 350116;Fujian Collaborative Innovation Center for R&D of Coach and Special Vehicle,Xiamen 361024)
出处
《汽车工程》
EI
CSCD
北大核心
2021年第8期1238-1247,共10页
Automotive Engineering
基金
国家自然科学基金(51708472)
福建省自然科学基金(2020J01275)
福建省高校产学合作项目(2020H6022)
福建省交通运输科技项目(202022,201903)
厦门市科技计划重大项目(3502Z20191019)
福建省科技创新平台项目(2016H2003)资助。
关键词
厢式货车
侧风稳定性
单向耦合法
风致行车安全
挡风屏障
瞬态响应
van truck
crosswind stability
unidirectional coupling method
wind⁃induced driving safety
wind barrier
transient response
