下压工况下辊压机驱动辊轴的瞬态响应分析
|
摘要
以辊压机的关键部件驱动辊轴为研究对象,用模态叠加法分析驱动辊轴在考虑初始下压的3种工况下的瞬态响应。基于机械振动学理论,构建辊轴自由振动方程。运用三维软件Solid Works,构建辊轴的实体建模。借助ABAQUS有限元软件对辊轴进行模态振动研究,获得其前10阶固有频率和振型,计算结果表明辊轴临界转速为13209. 6 r·min-1,高于其实际最大转速40 r·min-1,辊轴不会出现共振。振型分析表明,辊轴前10阶振型是弯曲振动和扭转振动,辊轴位移变形量随振动阶数提高而增大,最大变形发生在齿轮及轴端处。动态特性表明,辊轴的应力、位移及动能变化受模具安装位置与定位挡板的间距影响,且间距越远影响越大,影响最大的是模具安装位置距离定位挡板320 mm处。
For the drive roll shaft being the key part of roller press,the transient responses of the drive roll shaft under three initial pressures were analyzed by modal superposition method,and the free vibration equation of the drive roll shaft was constructed by the theory of mechanical vibration theory. Then,the physical modeling of the drive roll shafts was built by 3 D software Solid Works,and the modal vibration study of the drive roll shaft was conducted to obtain its first ten order natural frequencies and vibration models with the help of finite element software ABAQUS. The calculation results show that the critical rotating speed of the roll shaft is 13209. 6 r·min-1,which is higher than the actual maximum speed of 40 r·min-1,and the roll shaft is not resonant. The vibration mode analysis shows that the first ten vibration modes of the roll shaft are the bending vibration and torsional vibration,and the deformation of the roller shaft increases with the increase of vibration order number,and the maximum deformation occurs at the gear and shaft end. Dynamic characteristics show that the changes of stress,displacement and kinetic energy of roll shaft are affected by the space between mold installation location and positioning baffle,the farther the space is,the greater the influence is,and the influence reaches the maximum when the space between mold installation location and positioning baffle is 320 mm.
For the drive roll shaft being the key part of roller press,the transient responses of the drive roll shaft under three initial pressures were analyzed by modal superposition method,and the free vibration equation of the drive roll shaft was constructed by the theory of mechanical vibration theory. Then,the physical modeling of the drive roll shafts was built by 3 D software Solid Works,and the modal vibration study of the drive roll shaft was conducted to obtain its first ten order natural frequencies and vibration models with the help of finite element software ABAQUS. The calculation results show that the critical rotating speed of the roll shaft is 13209. 6 r·min-1,which is higher than the actual maximum speed of 40 r·min-1,and the roll shaft is not resonant. The vibration mode analysis shows that the first ten vibration modes of the roll shaft are the bending vibration and torsional vibration,and the deformation of the roller shaft increases with the increase of vibration order number,and the maximum deformation occurs at the gear and shaft end. Dynamic characteristics show that the changes of stress,displacement and kinetic energy of roll shaft are affected by the space between mold installation location and positioning baffle,the farther the space is,the greater the influence is,and the influence reaches the maximum when the space between mold installation location and positioning baffle is 320 mm.
引文
[1]骆无思,张宝红,张治民,等.楔形长板辊轧过程中工艺参数的模拟优化[J].锻压技术,2017,42(5):25-29.Luo W S,Zhang B H,Zhang Z M,et al. Simulation optimiza-tion on process parameters of wedge-shaped long board in the roll-ing process[J]. Forging&Stamping Technology, 2017, 42(5):25-29.
[2]刘治翔,谢春雪,毛君,等.空心阴极真空电弧焊接的引弧机理及参数优化[J].振动、测试与诊断,2018,38(3):614-618.Liu Z X,Xie C X,Mao J,et al. Arc initiation mechanism and pa-rameter optimization of hollow cathode vacuum arc welding[J].Journal of Vibration,Measurment&Diagnosis,2018,38(3):614-618.
[3]张广泰,杜祥哲,尹东海,等.底板导轨的辊压与冲压加工工艺比较[J].锻压技术,2017,42(10):46-50.Zhang G T,Du X Z,Yin D H,et al. Comparison of rolling andstamping processes for bottom plate guide[J]. Forging&Stam-ping Technology,2017,42(10):46-50.
[4]史冬岩,庄重,高山,等.基于ABAQUS的模态分析方法对比及验证[J].计算机辅助工程,2013,(S2):432-435.Shi D Y,Zhuang Z,Gao S,et al. Comparison and validation ofmodal analysis based on ABAQUS[J]. Computer Aided Engi-neering,2013,(S2):432-435.
[5] Satheesh Kumar Reddy P,Nagaraju Ch. Weight optimization andfinite element analysis of composite automotive drive shaft for maxi-mum stiffness[J]. Materials Today:Proceedings, 2017, 4(2):2390–2396.
[6]张东生,张建军.少齿数齿轮轴的模态分析与研究[J].机械设计与制造,2013,(8):210-212.Zhang D S,Zhang J J. The modal analysis and study of the gear-less gear shaft[J]. Mechanical Design and Manufacturing,2013,(8):210-212.
[7]刘言松,蒋新萍. NX环境下齿轮轴的模态分析[J].陕西科技大学学报:自然科学版,2009,27(5):118-119.Liu Y S,Jiang X P. The modal analysis of the gearshaft in the NXenvironment[J]. Journal of Science and Technology of ShaanxiUniversity of Science&Technology,2009,27(5):118-119.
[8]李振华,鄂明成,王恒.基于ABAQUS的花键轴静、动力学分析[J].机械工程师,2010,(8):39-41.Li Z H,E M C,Wang H. The static and dynami analysis of splineshafts based on ABAQUS[J]. Mechanical Engineer, 2010,(8):39-41.
[9]王枫,崔建昆.基于ABAQUS的碟式分离机立轴结构模态分析[J].机械工程与自动化,2015,(1):63-64.Wang F,Cui J K. The axial structure modal analysis of discsepa-rator based on ABAQUS[J]. Mechanical Engineering and Auto-mation,2015,(1):63-64.
[10]张晓冬,刘俊,邹双桂,等. Abaqus二次开发在管件中频热弯模拟中的应用[J].塑性工程学报,2017,24(1):140-144.Zhang X D,Liu J,Zou S G,et al. Application of Abaqus second-ary development to the simulation of intermediate frequency hotpipe-bending[J]. Journal of Plasticity Engineering,2017,24(1):140-144.
[11]简元霞,朱维兵,肖功方,等.辊压机辊轴结构改进设计[J].矿山机械,2014,42(11):83-86.Jian Y X,Zhu W B,Xiao G F,et al. The improved design ofroll-shaft structure for roller press[J]. Mining Machinery,2014,42(11):83-86.
[12]于涛,张玉娇,王月亮,等.基于ANSYS Workbench的八连杆压力机刚柔耦合模型动力学分析[J].锻压技术,2017,42(4):143-147.Yu T,Zhang Y J,Wang Y L,et al. Rigid-flexible coupling dy-namics analysis of eight-links mechanical press based on ANSYSWorkbench[J]. Forging&Stamping Technology, 2017, 42(4):143-147.
[13]朱玉泉,柯尊荣,李宝仁.辊压机动态建模与仿真[J].矿山机械,2003,31(1):13-16.Zhu Y Q,Ke Z R,Li B R. The dynamic modeling and modelingand simulation of roller press[J]. Mining Machinery,2003,31(1):13-16.
[14]刘治翔,谢春雪,毛君,等.基于物料分布特征的刮板输送机运行阻力分析[J].煤炭学报,2018,43(4):1155-1161.Liu Z X,Xie C X,Mao J,et al. Analysis of operation resistanceof scraper conveyor based on material distribution characteristics[J]. Journal of China Coal Society,2018,43(4):1155-1161.
[15] Liu Z X,Xie M,Xie C X,et al. Analysis on dynamic response ofcutting unit of excavation supporting bolting combined machine indrilling process[J]. Technical Bulletin, 2017, 55(20):267-275.
[16]刘明辉,肖伟,王建伟,等.铝合金中刃型位错与合金元素相互作用的分子动力学模拟研究[J].稀有金属,2017,41(3):233-238.Liu M H,Xiao W,Wang J W,et al. Molecular dynamics simula-tion of interaction between edge dislocations and alloying elementsin aluminium alloys[J]. Chinese Journal of Rare Metals,2017,41(3):233-238.
[2]刘治翔,谢春雪,毛君,等.空心阴极真空电弧焊接的引弧机理及参数优化[J].振动、测试与诊断,2018,38(3):614-618.Liu Z X,Xie C X,Mao J,et al. Arc initiation mechanism and pa-rameter optimization of hollow cathode vacuum arc welding[J].Journal of Vibration,Measurment&Diagnosis,2018,38(3):614-618.
[3]张广泰,杜祥哲,尹东海,等.底板导轨的辊压与冲压加工工艺比较[J].锻压技术,2017,42(10):46-50.Zhang G T,Du X Z,Yin D H,et al. Comparison of rolling andstamping processes for bottom plate guide[J]. Forging&Stam-ping Technology,2017,42(10):46-50.
[4]史冬岩,庄重,高山,等.基于ABAQUS的模态分析方法对比及验证[J].计算机辅助工程,2013,(S2):432-435.Shi D Y,Zhuang Z,Gao S,et al. Comparison and validation ofmodal analysis based on ABAQUS[J]. Computer Aided Engi-neering,2013,(S2):432-435.
[5] Satheesh Kumar Reddy P,Nagaraju Ch. Weight optimization andfinite element analysis of composite automotive drive shaft for maxi-mum stiffness[J]. Materials Today:Proceedings, 2017, 4(2):2390–2396.
[6]张东生,张建军.少齿数齿轮轴的模态分析与研究[J].机械设计与制造,2013,(8):210-212.Zhang D S,Zhang J J. The modal analysis and study of the gear-less gear shaft[J]. Mechanical Design and Manufacturing,2013,(8):210-212.
[7]刘言松,蒋新萍. NX环境下齿轮轴的模态分析[J].陕西科技大学学报:自然科学版,2009,27(5):118-119.Liu Y S,Jiang X P. The modal analysis of the gearshaft in the NXenvironment[J]. Journal of Science and Technology of ShaanxiUniversity of Science&Technology,2009,27(5):118-119.
[8]李振华,鄂明成,王恒.基于ABAQUS的花键轴静、动力学分析[J].机械工程师,2010,(8):39-41.Li Z H,E M C,Wang H. The static and dynami analysis of splineshafts based on ABAQUS[J]. Mechanical Engineer, 2010,(8):39-41.
[9]王枫,崔建昆.基于ABAQUS的碟式分离机立轴结构模态分析[J].机械工程与自动化,2015,(1):63-64.Wang F,Cui J K. The axial structure modal analysis of discsepa-rator based on ABAQUS[J]. Mechanical Engineering and Auto-mation,2015,(1):63-64.
[10]张晓冬,刘俊,邹双桂,等. Abaqus二次开发在管件中频热弯模拟中的应用[J].塑性工程学报,2017,24(1):140-144.Zhang X D,Liu J,Zou S G,et al. Application of Abaqus second-ary development to the simulation of intermediate frequency hotpipe-bending[J]. Journal of Plasticity Engineering,2017,24(1):140-144.
[11]简元霞,朱维兵,肖功方,等.辊压机辊轴结构改进设计[J].矿山机械,2014,42(11):83-86.Jian Y X,Zhu W B,Xiao G F,et al. The improved design ofroll-shaft structure for roller press[J]. Mining Machinery,2014,42(11):83-86.
[12]于涛,张玉娇,王月亮,等.基于ANSYS Workbench的八连杆压力机刚柔耦合模型动力学分析[J].锻压技术,2017,42(4):143-147.Yu T,Zhang Y J,Wang Y L,et al. Rigid-flexible coupling dy-namics analysis of eight-links mechanical press based on ANSYSWorkbench[J]. Forging&Stamping Technology, 2017, 42(4):143-147.
[13]朱玉泉,柯尊荣,李宝仁.辊压机动态建模与仿真[J].矿山机械,2003,31(1):13-16.Zhu Y Q,Ke Z R,Li B R. The dynamic modeling and modelingand simulation of roller press[J]. Mining Machinery,2003,31(1):13-16.
[14]刘治翔,谢春雪,毛君,等.基于物料分布特征的刮板输送机运行阻力分析[J].煤炭学报,2018,43(4):1155-1161.Liu Z X,Xie C X,Mao J,et al. Analysis of operation resistanceof scraper conveyor based on material distribution characteristics[J]. Journal of China Coal Society,2018,43(4):1155-1161.
[15] Liu Z X,Xie M,Xie C X,et al. Analysis on dynamic response ofcutting unit of excavation supporting bolting combined machine indrilling process[J]. Technical Bulletin, 2017, 55(20):267-275.
[16]刘明辉,肖伟,王建伟,等.铝合金中刃型位错与合金元素相互作用的分子动力学模拟研究[J].稀有金属,2017,41(3):233-238.Liu M H,Xiao W,Wang J W,et al. Molecular dynamics simula-tion of interaction between edge dislocations and alloying elementsin aluminium alloys[J]. Chinese Journal of Rare Metals,2017,41(3):233-238.