轨道车辆酚醛发泡地板结构设计与优化  

Structural Design and Optimization of Phenolic Foamed Floor for Railway Vehicles

作　　者：周洲 王昭 李师洁 齐玉文 林立钿[1] 王明星[1] 卜继玲[1] ZHOU Zhou;WANG Zhao;LI Shi-jie;QI Yu-wen;LIN Li-dian;WANG Ming-xing;BO Ji-ling(Zhuzhou Times New Material Technology Co.,Ltd.,Zhuzhou 412007,China;CRRC Changchun Railway Vehicles Co.,Ltd.,Changchun 130062,China)

机构地区：[1]株洲时代新材料科技股份有限公司,湖南株洲412007 [2]中车长春轨道客车股份有限公司,吉林长春130062

出　　处：《塑料工业》2020年第11期152-158,共7页China Plastics Industry

基　　金：国家重点研发计划(2018YFB1201604)。

摘　　要：轨道交通车辆运行速度已由200 km/h跨入了400 km/h时代,车辆的高速发展对车辆内地板轻量化及隔声性能提出更高的要求。研究了酚醛发泡夹心地板面板厚度(h1)、加强筋厚度(h2)与芯材模量(E)对地板质量与刚度的影响,并采用归一化分析方法得出这三个参数的最优解为:h 1为1.2 mm,h 2为0.8 mm,E为32 MPa,并通过试验测试了对应参数的酚醛发泡夹心地板,在均布载荷为549 kg/m^2情况下,地板变形为0.84 mm,质量为7.55 kg/m^2,加权隔声量为28 dB,满足地板刚度与质量需求。With the operating speed of railway vehicles increased from 200 km/h to 400 km/h,the requirement of vehicles'development for lightweight and sound insulation performance of vehicle interior floor became more and more important.The effects of the thickness of phenolic foamed sandwich floor panel(h1),the stiffeners'thickness(h2)and the modulus of core material(E)on the weight and stiffness of the floor were studied.And the optimum solutions of these three parameters are obtained by normalization analysis method,which h1 is 1.2 mm,h2 is 0.8 mm,and E is 32 MPa.Subsequently,the performance of phenolic foamed sandwich floor with corresponding parameters is tested by experiments.Under the uniform load of 549 kg/m^2,the floor deformation is 0.84 mm,the surface density is 7.55 kg/m^2,and the weighted sound insulation value is 28 dB,which satisfies the requirements of floor stiffness and weight.

关 键 词：轨道车辆 内地板 酚醛发泡 归一化 轻量化 

分 类 号：O385[理学—流体力学]