[1]姚运仕,李彦伟,石 鑫,等.双频合成振动压实机动态特性仿真研究[J].西安建筑科技大学学报:自然科学版,2012,44(06):903-908.[doi:10.15986/j.1006-7930.2012.06.025]
　YAO Yun-shi,LI Yan-wei,SHI Xin,et al.Dynamic characteristics analysis for double-frequency composed vibratory compactor[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2012,44(06):903-908.[doi:10.15986/j.1006-7930.2012.06.025]
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双频合成振动压实机动态特性仿真研究()
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西安建筑科技大学学报:自然科学版[ISSN:1006-7930/CN:61-1295/TU]

卷:
44
期数:
2012年06期
页码:
903-908
栏目:
出版日期:
2012-12-31

文章信息/Info

Title:
Dynamic characteristics analysis for double-frequency composed vibratory compactor
文章编号:
1006-7930(2012)06-0903-06
作者:
姚运仕1; 李彦伟2; 石 鑫2; 杜群乐3; 冯忠绪1; 朱伟敏4
(1.长安大学道路施工技术与装备教育部重点试验室,陕西 西安 710064; 2.石家庄市交通运输局,河北 石家庄 050051; 3.河北省交通运输厅公路管理局,河北 石家庄 050051;4.杭州应用声学研究所,浙江 杭州 310012)
Author(s):
YAO Yun-shi1;  LI Yan-wei2;  SHI Xin2;  DU Qun-le3;  FENG Zhong-xu1;  ZHU Wei-min4
(1.Key Laboratory for Highway Construction Technology and Equipment of Ministry of Education, Changan University, Xian 710064, China; 2.Shijiazhuang Bureau of Transportation, Shijiazhuang 050051, China; 3.Road Bureau of Traffic Department of Hebei Province, Shijiazhuang 050051, China; 4.Hangzhou Applied Acoustics Research Institute, Hangzhou 310012, China)
关键词:
机械工程; 双频合成振动; 振动压实; 动态特性; 仿真
Keywords:
mechanical engineering;  double-frequency composed vibration;  vibrating compaction;  dynamic characteristics;  simulation
DOI:
10.15986/j.1006-7930.2012.06.025
文献标志码:
A
摘要:
为了探讨双频合成振动压实过程的动态响应,建立了 “ 双频合成振动压实机-土壤 ”2 自由度动力学模型,采取仿真研究的方法,分析了双频合成振动压实过程某工况上车和下车的位移、加速度及激振力和压实机对土壤作用力随激振器频率的变化规律.研究结果表明:双频合成振动压实机-土壤2自由度动力学模型具有2个固有频率;随激振器频率的变化,上车和下车位移和加速度出现一阶和二阶共振峰;与激振力不同,压实机对土壤的作用力除受振动参数影响外,还与土壤参数有关;振幅和频率是影响压实机对土壤作用力的重要参数,振幅比频率的影响更显著,振幅的取值应考虑被压实对象,频率的取值应使低频频率比二阶固有频率稍高
Abstract:
In order to discuss the dynamic effects on the process of double-frequency composed vibration, the two DOF (degree of freedom) dynamic models of double-frequency composed vibratory compactor and soil was built. With the help of dynamic simulation, the relations of frequencies and some parameters, as between the upper and lower chassis displacements, acceleration, vibrating force and effect force on the ground caused by compactor (EFOG) , were analyzed. It was shown that the dynamic model of double-frequency composed vibratory compactor and soil had two natural frequencies, and with the change of vibrating frequencies, the upper and lower chassis displacements and acceleration presented 1st order and 2nd order formats. Different from vibrating force, EFOG was affected synchronously by vibrating parameters and soil. As important factors, the amplitudes had more actions on EFOG than the frequencies. It was pointed out that the amplitudes should be adapted to the soil and the lower frequency should be a little higher than the 2nd order natural frequency.

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备注/Memo

备注/Memo:
收稿日期:2011-12-18 修改稿日期:2012-11-25
基金项目:国家自然科学基金ZIZ资助项目(51208044);中央高校基本科研业务费专项资金资助项目(CHD2010JC140);长安大学基础研究支持专项基金
作者简介:姚运仕(1979-),男,山东费县人,博士后,副教授,主要从事工程机械理论及作业质量控制领域研究
更新日期/Last Update: 2015-09-01