东南大学学报（自然科学版）2016，Vol.46Issue(6)：1179-1185,7.DOI:10.3969/j.issn.1001-0505.2016.06.012
摊铺机熨平板动态特性分析与测试
Dynamic characteristics analysis and test of paver screed
摘要
Abstract
To improve the vibration response and dynamic characteristics of the paver screed,a dy-namic model of the screed was established first.The differential motion equations were solved via the Euler-Lagrange theorem.The relationship between the amplitude responses of the screed box and the vibrator frequency was obtained through virtual prototyping simulation.Then,a new method for testing the beam pressure to the ground by film pressure sensor was put forward to study the relation-ship between the beam pressure and the tamper frequency.Finally,based on the modal superposition theory,a new method for testing the vibration shape of the screed was also put forward to figure out the vibration shapes of the screed under different conditions.Results show that when the vibrator fre-quency range is 30 to 40 Hz,the amplitude response of the screed box is more obvious.The beam has less pressure on asphalt mixture when the tamper frequency range is 15 to 20 Hz.Under the con-ditions of the tamper frequency 15 Hz and the vibrator frequency 40 Hz,the vibration shape of the screed is the smoothest,thus improving the smoothness and the quality of asphalt layer.关键词
摊铺机熨平板/动态特性/压力测量/模态叠加/振动形态Key words
paver screed/dynamic characteristic/pressure measurement/mode superposition/vi-bration shape分类
交通工程引用本文复制引用
殷超,张建润,孙志刚,韩志远..摊铺机熨平板动态特性分析与测试[J].东南大学学报（自然科学版）,2016,46(6):1179-1185,7.基金项目
江苏省科技支撑计划资助项目（BE2014133）、江苏省前瞻性联合研究资助项目（BY2014127-01）． （）
