河北水利电力学院学报

河北水利电力学院学报 ›› 2020, Vol. 30 ›› Issue (1): 14-18.DOI: 10.16046/j.cnki.issn2096-5680.2020.01.003

• 技术理论与应用 • 上一篇    下一篇

基于集中参数模型的垂直振动压路机动力学分析

白 帆1，王 扬1，李韶华2，秦 浩1   

  1. 1.石家庄铁道大学交通运输学院，河北省石家庄市北环东路17号 050043;
    2.石家庄铁道大学省部共建交通工程结构力学行为与系统安全国家重点实验室，河北石家庄市北环东路17号 050043

  • 收稿日期:2019-12-17 出版日期:2020-03-31 发布日期:2020-04-30
  • 作者简介:白 帆(1995-)，女，河北平山人，硕士研究生，研究方向为智能压实理论与工程应用｡E-mail:bf@stdu.edu.cn
  • 基金资助:
    国家自然科学基金(11872255);; 河北省研究生创新项目(yc2020047)

Dynamic Analysis of Vertical Vibratory Roller Based on Lumped Parameter Model

BAI Fan1，WANG Yang1，LI Shao-hua2，QIN Hao1   

  1. 1.School of Traffic and Transportation，Shijiazhuang Tiedao University，050043，Shijiazhuang，Hebei，China;
    2.State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures，Shijiazhuang Tiedao University，050043，Shijiazhuang，Hebei，China

  • Received:2019-12-17 Online:2020-03-31 Published:2020-04-30

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摘要： 考虑土体表面的不平顺,针对压实过程末期的振动压路机,建立了压路机-土系统的二维线性动力学模型,分析了机架与振动轮的响应,针对某型压路机讨论了系统参数对压路机动力学行为的影响。研究表明,为了在保证驾驶舒适度的前提下产生更好的压实效果,应选择接近二阶固有频率的激振力;在一定条件下,地表激励有可能对系统响应产生显著影响,应将地表激励的频率控制在合理范围;对于未发生跳振的常规工况,可以忽略地表激励对压路机动力学行为的影响。

关键词: 振动压路机, 集中参数模型, 动力学分析

Abstract: Considering the surface irregularity of the soil，a 2Dlinear dynamic model of roller-soil system was established for the vibratory roller and well-compacted soil.The response of the frame and the drum was analyzed，and the influence of some parameters on the dynamic behavior of the roller is discussed based on parameters of a certain roller.The research shows that in order to provide high compaction force while ensuring operation comfort，the frequency of the excitation force should be close to the second-order natural frequency of the roller.Under certain conditions，the excitation of the soil surface could play a significant role for the system response，therefore the frequency of the surface excitation should be controlled within a reasonable range.For smooth operating conditions where the drum is in contact with the soil，the effect of surface excitation on the dynamic behavior of the roller can be ignored.

Key words: vibratory roller, lumped parameter model, dynamic analysis

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