圆锯片结构拓扑优化
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摘要
为了降低圆锯片应力集中现象,提高圆锯片使用寿命,文中采用变密度法对圆锯片进行了结构拓扑优化。在建立了圆锯片有限元模型及所施加的载荷模型之后,求得圆锯片的伪密度云图,基于伪密度云图对圆锯片进行了结构设计。结果表明,基于伪密度设计的结构能够降低圆锯片应力集中的现象,对提高圆锯片使用寿命起到了作用。
In order to decrease the saw blade stress concentration and improve the circular saw blade service life, the variable density method was used in structural topology optimization of circular saw blade. The finite element model and the applied load model were established and the pseudo density map was calculated. Based on the pseudo density map, the structure of circular saw blade was designed. The results show that the stress concentration of circular saw blade can be decreased and the service life is increased.
In order to decrease the saw blade stress concentration and improve the circular saw blade service life, the variable density method was used in structural topology optimization of circular saw blade. The finite element model and the applied load model were established and the pseudo density map was calculated. Based on the pseudo density map, the structure of circular saw blade was designed. The results show that the stress concentration of circular saw blade can be decreased and the service life is increased.
引文
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[16]韩婷.基于ANSYS的车架拓扑优化设计[D].武汉:武汉理工大学,2013.
[17]林丹益.汽车发动机支架拓扑优化及有限元分析[D].杭州:浙江工业大学,2013.
[2]Xie Y M,Steven G P.A simple evolutionary procedure for structural optimization[J].Computers&Structures,1933,49(5):885-896.
[3]Sui Y,Yang D.A new method for structural topological optimization based on the concept of independent continuous variables and smooth model[J].Acta Mechanica Sinica,1998,18(2):179-185.
[4]Bendsoe M P,Sigmund O.Material interpolations in topology optimization[J].Archive of Applied mechanics,1999,69:635-654.
[5]Sethian J A,Wiegmann Andreas.Structural boundary design via level set and immersed interface methods[J].Journal of Computational Physics,2000,163:489-528.
[6]王中华,温卫东.基于自适应遗传算法的连续体结构的拓扑优化[J].机械科学与技术,2004,23(11):1301-1303.
[7]Mote C D.On the aerodynamic noise source in circular saws[J].Journal of the Acoustical Society of America,1979,65(9):104-113.
[8]郭兴旺,邹家祥.圆锯片振动模态的准确解[J].北京科技大学学报,1994,16(6):572-576.
[9]Abr觔o A M,Moreira M C,Faria P E,et al.High-performance circular sawing of AISI 1045 steel with cermet and tungsten carbide inserts[J].Journal of Mechanical Science and Technology,2014,28(10):4275-4282.
[10]白硕玮,张进生,王长会,等.薄型锯片锯切硬脆石材横向振动模型[J].农业机械学报,2015,46(2):372-378.
[11]Lzhak Bucher.Transforming and separating rotating disk vibrations using a sensor array[J].Journal of Sound and Vibration,2011,330(6):1244-1264.
[12]Chen J S.Parametric resonance of a spinning disk under space-fixed pulsating edge loads[J].ASME Journal of Applied Mechanics,1997,64(1):139-143.
[13]季武强.飞机机翼结构拓扑优化方法研究及其实现[D].沈阳:沈阳航空航天大学,2013.
[14]李举.金属圆锯片降低振动及提高刚度的优化设计研究[D].镇江:江苏大学,2009.
[15]曾攀,雷丽萍,方刚.基于ANSYS平台有限元分析手册结构的建模与分析[M].北京:机械工业出版社,2011.
[16]韩婷.基于ANSYS的车架拓扑优化设计[D].武汉:武汉理工大学,2013.
[17]林丹益.汽车发动机支架拓扑优化及有限元分析[D].杭州:浙江工业大学,2013.