中国机械工程

• 机械基础工程 • 上一篇    下一篇

考虑结合面因素的模台振动系统动态特性

宜亚丽1;向健1;刘达1;甄红卫2;金贺荣1   

  1. 1. 燕山大学机械工程学院,秦皇岛,066004
    2. 北京星航机电装备有限公司,北京,100074
  • 出版日期:2019-10-25 发布日期:2019-10-29
  • 基金资助:
    国家自然科学基金资助项目(51605416)

Dynamic Performance of Mould Table Vibration Systems Considering the Influencing Factors of Joint Surface

YI Yali1;XIANG Jian1;LIU Da1;ZHEN Hongwei2;JIN Herong1   

  1. 1.School of Mechanical Engineering, Yanshan University, Qinhuangdao, Hebei, 066004
    2. Beijing Xinghang Mechanical-Electrical Equipment Co.,Ltd.,Beijing,100074
  • Online:2019-10-25 Published:2019-10-29

摘要: 为提高混凝土振动密实性与均匀性,着眼于流水生产线中振动台当前振动系统设计,将结合面作为影响因素,用以分析振动子系统间的运动趋势。基于Simulink将振动系统离散为四自由度串联振动系统,建立理论响应模型,分析振动子系统位移响应幅值随面压变化规律,汇总36组振动子系统相邻振幅差率。基于Workbench对模台振动系统进行谐响应分析,理论计算结果与仿真值最大误差为13.3%。基于振动子系统邻近振幅差率值较小,同时混凝土的振幅符合极限幅值的参数选取原则,从中选择3组结合面压力作为工况参数,进行预制构件生产制备,对制品外形几何尺寸进行测量,并进行加载试验,预制构件性能满足行业验收标准,从而为混凝土预制构件生产设置合理工况参数提供了参考。

关键词: 模台振动系统, 结合面因素, 振动子系统, 谐响应分析

Abstract: In order to improve the vibration compactness and uniformity of concretes, focusing on the current vibration system design of the vibrating table in the production line, the influence factors of the joint surface was introduced to analyze the motion trend among the vibration subsystems. The mold vibration system was discretized into a four-degree-of-freedom series vibration system based on Simulink, and the theoretical response model was established. The variation of displacement response amplitudes with surface pressure of vibration subsystems was analyzed, and the adjacent amplitude differences rates of 36 groups of vibration subsystems were summarized. The harmonic response analysis of vibration subsystems based on Workbench, the maximum error between theoretical and simulation results is as 13.3%. Three groups of prefabricated components produced under the joint pressures of the adjacent vibrating subsystems were selected with the small amplitude difference adjacent and meet the limit amplitude, did the dimensional measurement and load tests, the performance of the production meet the acceptance criteria of the industry,which provides a reference for setting reasonable working condition parameters for prefabricated concrete production.

Key words: mold vibration system, factors of joint surface, vibration subsystem, harmonic response analysis

中图分类号: