矿物复合材料机床支承件动静态特性研究
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摘要
为了研究矿物复合材料的吸振性,针对铸铁和矿物复合材料两种不同材料的床身及立柱结构的固有振动特性,通过模态分析的方法开展了对比研究。首先,通过SolidWorks建立加工中心床身及立柱结构的几何模型,并将其导入ANSYS Workbench中进行模态分析;然后,对床身及立柱结构进行模态实验,得到其模态参数值,利用实验验证了仿真模型的有效性。结果证明,采用矿物复合材料制成的床身及立柱结构,可以提高其固有频率,从而提高了机床的稳定性及加工精度。
In order to study the vibration resistance of mineral composites,modal analysis is carried out on the machine tool bed and column of cast iron and mineral composites. The inherent vibration characteristics are obtained. Firstly,the geometric model is developed by Solidworks and imported into ANSYS Workbench for modal analysis. Secondly, the modal experiment is carried out to obtain the modal parameters. Meanwhile,the correctness of the simulation results is verified. The results prove that the natural frequency of mineral composites has been greatly increased,which improve the stability of machine and accuracy of work-piece effectively.
In order to study the vibration resistance of mineral composites,modal analysis is carried out on the machine tool bed and column of cast iron and mineral composites. The inherent vibration characteristics are obtained. Firstly,the geometric model is developed by Solidworks and imported into ANSYS Workbench for modal analysis. Secondly, the modal experiment is carried out to obtain the modal parameters. Meanwhile,the correctness of the simulation results is verified. The results prove that the natural frequency of mineral composites has been greatly increased,which improve the stability of machine and accuracy of work-piece effectively.
引文
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[13]陈瑜,魏俊,王云霞.树脂机床床身结构的静动态性能分析[J].南京工程学院学报:自然科学版,2016,14(2):49-52.
[2]陈建龙,侯镇冰,诸乃雄.人造花岗岩机床支承件的结构设计[J].装备机械,1990(3):14-17.
[3]Suh J D,Dai G L.Design and manufacture of hybrid polymer concrete bed for high-speed CNC milling machine[J].International Journal of Mechanics&Materials in Design,2008,4(2):113-121.
[4]徐吉存,高柏宏,李焱,等.基于新材料、新技术的绿色机床设计[J].航空制造技术,2011(4):41-43.
[5]丁江民,周光富.复合混凝土机床床身及其动静态性能研究[J].制造技术与机床,2014(1):88-93.
[6]于英华,崔剑.钢纤维树脂混凝土阻尼及其机床构件动态性能[J].辽宁工程技术大学学报,2004,23(1):104-106.
[7]梁秀霞,陈瑶,邱爽.基于ANSYS Workbench的树脂混凝土机床床身热变形分析优化[J].机床与液压,2015,43(3):175-178.
[8]徐平,于英华,李智超.聚合物混凝土(PC)在机械行业的应用及分析[J].辽宁工程技术大学学报,2000,19(1):79-80.
[9]Zeleke M.Modal Analysis of Machine tool Column using Finite Element Method[J].Waset Org,2013,7(4):134-173.
[10]王滕,万熠,梁西昌,等.基于模态分析的机床床身优化设计[J].工具技术,2015,49(6):64-67.
[11]康方,范晋伟.基于ANSYS的数控机床动态特性分析[J].机械设计与制造,2008(7):181-182.
[12]刘伯聪,李焱,谢志坤,等.立式加工中心VMC850E床身结构动态特性分析[J].机械设计与制造,2013(10):160-162.
[13]陈瑜,魏俊,王云霞.树脂机床床身结构的静动态性能分析[J].南京工程学院学报:自然科学版,2016,14(2):49-52.