大型设备路面运输中八自由度减振基座结构设计及动力学分析
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摘要
设计了一种八自由度的减振基座机构,并用Creo5.0详细完成了该基座的装配过程。在该基座的结构中应用某有限的减振弹压杆并结合齿柱断齿吸能原理初始假设。根据达朗贝尔原理在常规大型设备运输的条件中简化模型并建立了运动学方程,建立了合适的振动模型的评价机制。通过MATLAB等软件对于滤波白噪声等方法建立的时域模型进行求解,为该基座在垂直振幅、基座上端盖俯仰角和倾斜角提供了准确的仿真分析。最后通过理论模型建立和仿真结果分析,证实了该基座在一定速度范围内减振的可靠性,为后续的应用于实际生产中提供理论支持并奠定了基础。
The design of a eight DOF vibration damping base mechanism,and use Creo2.0 with complete assembly process of the base,the structure of the base in the application of the damping spring rod a handicapping combined with tooth tooth fracture energy absorption principle is presented.According to Darren Bell principle,the model is simplified in the condition of conventional large equipment transportation,and the kinematic equation is established,and the appropriate vibration model evaluation mechanism is established.By using MATLAB and other software,the time domain model established by filtering and white noise is solved.The accurate simulation analysis is provided for the vertical amplitude,the elevation angle and the inclination angle of the upper end of the base.Finally,through theoretical model building and simulation analysis,the reliability of the base is verified in a certain speed range,which provides theoretical support for the subsequent application in practical production and lays a foundation.
The design of a eight DOF vibration damping base mechanism,and use Creo2.0 with complete assembly process of the base,the structure of the base in the application of the damping spring rod a handicapping combined with tooth tooth fracture energy absorption principle is presented.According to Darren Bell principle,the model is simplified in the condition of conventional large equipment transportation,and the kinematic equation is established,and the appropriate vibration model evaluation mechanism is established.By using MATLAB and other software,the time domain model established by filtering and white noise is solved.The accurate simulation analysis is provided for the vertical amplitude,the elevation angle and the inclination angle of the upper end of the base.Finally,through theoretical model building and simulation analysis,the reliability of the base is verified in a certain speed range,which provides theoretical support for the subsequent application in practical production and lays a foundation.
引文
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8黄志刚,朱慧,梁新成.微型轿车七八自由度模型动态仿真研究.计算机仿真,2011;28(2):354-359Huang Zhigang,Zhu Hui,Liang Xincheng.Study on dynamic simulation of subminiature car between model of seven DOF and eight DOF.Computer Simulation,2011;28(2):354-359
9张永林,钟毅芳.汽车道路双轮辙多点随机激励建模与仿真研究.系统仿真学报;2004;16(6):1147-1154Zhang Yonglin,Zhong Yifang.Investigation into the time domain model and numerical simulation of bilateral track excitation from road irregularities.Journal of System Simulation,2004;16(6):1147-1154
10张功学,叶东.十一自由度汽车动力学模型及舒适性仿真.机械设计与制造,2017;(1):43-46Zhang Gongxue,Ye Dong.Eleven degree of freedom vehicle dynamics model and comfort simulation.Mechanical Design and Manufacture,2017;(1):43-46
11陈洪月,白杨溪,毛君,等.工况激励下采煤机7自由度非线性振动分析.机械强度;2017,(1):1-6Chen Hongyue,Bai Yangxi,Mao Jun,et al.Nonlinear vibration analysis of 7 degree of freedom shearer under working condition.Mechanical Strength,2017;(1):1-6
2王小龙,李玉东.圆筒型复合材料基座减振设计变量分析.广东造船,2013;(5):80-83,85Wang Xiaolong,Li Yudong.Variable analysis of vibration damping design of cylindrical composite base.Guangdong Shipbuilding,2013;(5):80-83,85
3梁德利,计方,叶曦.基座结构形式对艇体振动特性的影响研究.船舶力学,2012;16(5):557-566Liang Deli,Ji Fang,Ye Xi.Influenction of base connection types on hull structure's vibration characteristics.Ship Mechanics,2012;16(5):557-566
4焦灵芝.阻尼减振技术在舰船典型设备安装基座中的应用研究.哈尔滨:哈尔滨工业大学,2009Jiao Lingzhi.Study on the application of damping vibration damping technology in the installation base of ship typical equipment.Harbin:Harbin Institute of Technology,2009
5杨德庆,郭凤骏.振级落差约束下齿轮箱基座拓扑构型设计.振动与冲击,2008;(6):173-177,196Yang Deqing,Guo Fengjun.Topological configuration design of gear box base under vibration level drop constraint.Vibration and Shock,2008;(6):173-177,196
6李炳益,何文林,付桂荣,等.碎煤机弹簧基座动力特性测试与分析.吉林电力,2000;(6):9-13Li Bingyi,He Wenlin,Fu Guirong,et al.The dynamic characteristics of the spring base crusher test and analysis.Jilin Electric Power,2000;(6):9-13
7严济宽.具有非刚性基座的机械装置减振设计.上海交通大学学报,1964;(3):83-94Yan Jikuan.Vibration reduction design of mechanical devices with non rigid base.Journal of Shanghai Jiaotong University,1964;(3):83-94
8黄志刚,朱慧,梁新成.微型轿车七八自由度模型动态仿真研究.计算机仿真,2011;28(2):354-359Huang Zhigang,Zhu Hui,Liang Xincheng.Study on dynamic simulation of subminiature car between model of seven DOF and eight DOF.Computer Simulation,2011;28(2):354-359
9张永林,钟毅芳.汽车道路双轮辙多点随机激励建模与仿真研究.系统仿真学报;2004;16(6):1147-1154Zhang Yonglin,Zhong Yifang.Investigation into the time domain model and numerical simulation of bilateral track excitation from road irregularities.Journal of System Simulation,2004;16(6):1147-1154
10张功学,叶东.十一自由度汽车动力学模型及舒适性仿真.机械设计与制造,2017;(1):43-46Zhang Gongxue,Ye Dong.Eleven degree of freedom vehicle dynamics model and comfort simulation.Mechanical Design and Manufacture,2017;(1):43-46
11陈洪月,白杨溪,毛君,等.工况激励下采煤机7自由度非线性振动分析.机械强度;2017,(1):1-6Chen Hongyue,Bai Yangxi,Mao Jun,et al.Nonlinear vibration analysis of 7 degree of freedom shearer under working condition.Mechanical Strength,2017;(1):1-6