摘要
针对大型焦炉推焦装置在推焦过程中工作部件推焦杆经常出现振动,可能影响推焦装置工作稳定性、降低焦炭成品率甚至对焦炉造成破坏等问题,采用通过刚柔耦合动力学模型分析来确定振动激励源的方法,以推焦装置为研究对象,应用多软件联合仿真建立了推焦装置刚柔耦合模型,通过实验测试振动信号对仿真模型进行了验证,并进而通过动力学仿真得出推程中推焦杆振动主要是由于滑靴与炭化室地面存在摩擦引起的,获得了随着动摩擦系数的减小,推程中推焦杆的振动加速度均方根值变小,振动明显减弱等规律。研究结果可为推焦装置后续减振及优化设计提供重要参考。
The pushing rod,the working part of the large coke oven pushing device,often vibrates in the process of pushing coke,which may affect the stability of the coke pushing device,reduce the coke yield,and even cause damage to the coke oven. So this paper proposed a method for determining vibration excitation source through rigid-flexible coupling dynamic model analysis,took the coke pushing device as the research target,established a rigid-flexible coupling model of the coke pushing device through the application of multi-software co-simulation,verified the simulation model by the experimental testing vibration signal,and then it is concluded that the vibration of the pushing rod in the coke pushing process is mainly caused by friction existence between the sliding shoe and the surface of the carbonization chamber through dynamic simulation and obtains law that with the decrease of the dynamic friction coefficient,the effective value of the vibration acceleration of the pushing rod in the pushing process becomes smaller and the vibration becomes weakened obviously. The research results can provide important reference for follow-up vibration reduction and optimization design of coke pushing device.
作者
孟爽
孙桓五
向瑾
MENG Shuang;SUN Huan-wu;XIANG Jin(Taiyuan University of Technology,College of Mechanical Engineering,Shanxi Taiyuan030024,China)
出处
《机械设计与制造》
北大核心
2020年第8期224-227,231,共5页
Machinery Design & Manufacture
基金
山西省煤基重点科技攻关项目(MJH2014-08)。
关键词
推焦装置
刚柔耦合
联合仿真
动摩擦系数
动力学仿真
振动
Pushing Coke Device
Rigid-Flexible Coupling
Co-Simulation
Dynamic Friction Coefficient
Dynamic Simulation
Vibration
