基于叶序结构的机床立柱仿生设计  

Bionic Design of Machine Tool Column Based on Phyllotaxy Structure

作　　者：李昌璐 李兴山[1] 刘殿坤 LI Changlu;LI Xingshan;LIU Diankun(School of Mechanical Engineering,Shenyang Ligong University,Shenyang 110159,China)

机构地区：[1]沈阳理工大学机械工程学院,辽宁沈阳110159

出　　处：《成组技术与生产现代化》2022年第2期25-31,共7页Group Technology & Production Modernization

基　　金：国家重点研发计划“网络协同制造系统集成共性技术研究与应用”项目资助基金(2018YFB1702800)。

摘　　要：为了提高机床的强度与刚度,使其拥有良好的动静态性能,根据自然界植物生长的叶序结构,基于结构仿生原理和方法,对大型机床立柱的内部支撑结构进行仿生设计,并对仿生型立柱结构进行了静力学分析和模态分析。结果表明:与立柱原始结构相比,在采用互生、对生及轮生叶序设计的仿生型立柱结构中,按二列对生叶序设计的仿生型立柱结构质量减小5.25%,总体最大位移减小6.72%,最大应力降低了20.99%;各阶频率都有不同程度的提升,其中二阶频率提升最明显,达6.70%。这证明了基于叶序结构仿生设计方法的可行性,为机床仿生结构设计提供了新的思路。In order to improve the strength and rigidity of the machine tool and make it have good dynamic and static characteristics.Based on the principle and method of structural bionics,according to the Phyllotaxy structure of plant growth in nature,taking the column of large machine tool as the research object,the internal support structure of the column of machine tool was bionic designed,and the static and dynamic analysis of the bionic structure was carried out.Compared with the original structure,in the column structure with the bionic design of opposite,alternate and whorl leaf sequence,the mass of the bionic column structure desined according to the two-row opplosite phyllotaxy is reduced by 5.25%,the overall maximum displacement by 6.72%and the maximum stress by 20.99%.The frequency of each order has different degree of improvement,among which the second order frequency increase most obviously,reaching 6.70%.It proves the feasibility of bionic design method based on the phyllogenetic structure and provides a new idea and method for machine tool bionic structure design.

关 键 词：五轴机床 立柱 叶序 结构仿生 

分 类 号：TH122[机械工程—机械设计及理论]