铁道科学与工程学报2018，Vol.15Issue(5)：1302-1309,8.
基于材料特性的压路机最佳速度模型与仿真
Model and simulation of roller's optimum velocity based on material characteristics
摘要
Abstract
In order to determine the relationship between vibratory compaction velocity and the compaction effect of mixture, sufficient conditions and necessary conditions of resonance for the roller exciter and compacted materials in motion were analyzed on the basis of the theory of resonance; the plastic strain and elastic strain of mixture during different processes of compaction were studied for the Burgers model, the relationship between optimum velocity and the equipment size parameters, vibration parameters, material parameters, and compaction process parameters was obtained by establishing a mathematical model of optimum velocity for vibratory roller;Matlab software was used to simulate and analyse the change rules of main parameters' influence on optimum velocity, the result indicated that the optimum velocity is positively related to layer depth of compacted materials, diameter of steel wheel, vibration frequency and so on, while negatively related to layer compactness, modulus of elasticity, ect; the common equipment parameters (such as f=45 Hz, D=1.4 m, q=50 kN/m) and the typical material parameters (such as H=0.06 m, E=50 MPa) was taken for an example, the optimum velocity of roller is identified as 4.0 km/h, conforming with 94% degree of compactness relative to the maximum theoretical density of standard design requirements.关键词
道路工程/振动压路机/压实速度/Burgers模型Key words
road engineering/vibratory roller/compaction velocity/model of Burgers分类
建筑与水利引用本文复制引用
刘洪海,刘腾,辛强,郑平安..基于材料特性的压路机最佳速度模型与仿真[J].铁道科学与工程学报,2018,15(5):1302-1309,8.基金项目
内蒙古交通科技资助项目(NJ-2016-12) （NJ-2016-12）
中央高校基本科研业务费专项基金资助项目(300102258401) （300102258401）
