摘要
针对城市客车轻量化需求,本文以8.5 m短后悬长轴距城市客车为研究对象,提出一种基于玻璃厚度优化的侧窗轻量化设计方案。通过有限元方法,对比分析了传统5 mm厚的钢化玻璃与减薄方案(4 mm、3.2 mm)在静力学强度、动力学谐响应及模态特性等方面的性能差异。研究结果表明:在满足安全标准的前提下,3.2 mm玻璃方案可实现36%的减重,静载最大应力为23.5 MPa,动态谐响应位移幅值仅增加0.01 mm,且通过实物冲击试验验证。该设计可为同类客车降低能耗提供参考。
Addressing the demand for lightweight city buses,this paper takes an 8.5 m short-rear-overhang long-wheelbase city bus as the research object.It proposes a lightweight side window design scheme based on glass thickness optimization.Using the finite element method,the static strength,dynamic harmonic response,and modal characteristics of traditional 5 mm toughened glass are compared with those of thinner alternatives(4 mm and 3.2 mm).The results demonstrate that the 3.2 mm glass scheme meets the safety standard while achieving a 36%weight reduction.Under maximum static load,the stress is 23.5 MPa,and the dynamic harmonic response displacement amplitude increases by only 0.01 mm.Physical impact tests have verified these findings.This design scheme provides a valuable reference for similar buses to reduce energy consumption.
作者
杨浩
YANG Hao(CRRC Electric Vehicle Co.,Ltd.,Zhuzhou 412007,China)
出处
《客车技术与研究》
2025年第4期67-71,共5页
Bus & Coach Technology and Research
关键词
新能源城市客车
轻量化
有限元分析
钢化玻璃
new energy city bus
lightweight
finite element analysis
tempered glass
