多层材料均匀化及其在风机叶片中的应用  

Homogenization of layered composites and its application on fan blades

作　　者：王辰宇[1] 孙启荣[1] 朱保印 薛斌[1] Wang Chenyu Sun Qirong Zhu Baoyin Xue Bin(College of Mechanics and Materials ,Hohai University ,Nanjing 211100, China)

机构地区：[1]河海大学力学与材料学院

出　　处：《能源与环保》2017年第5期160-165,共6页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：江苏高校首批2011计划"沿海开发与保护协同创新中心"计划(苏政办发[2013]56号);江苏风力发电工程技术中心开放基金(ZK16-03-03)

摘　　要：为了运用均匀化理论预测风机叶片的有效模量,首先,推导出完美界面两端的连续性关系,在此基础上将均匀化理论应用于分层材料;其次,通过有限元方法分别对多层结构叶片和均匀材料叶片进行极限载荷分析和模态分析;最终,将相应的数值结果进行比较,以验证均匀化理论模拟分层风力叶片的合理性。To predict the effective properties of the layered fan blade by the homogenization theory,firstly,the interfacial relations for a perfect elastic interface were derived, with help of these interfacial relations, the homogenization theory was applied to establish the closed-form of layered composite; secondly,in the framework of the finite element method,the limit load analysis and modal analysis of the layered and homogenized fan blade were respectively studied. Finally,their corresponding numerical results were compared to illus-trate the validation of the homogenization theory in the simulation of the layered fan blades.

关 键 词：风机叶片 完美界面 多层材料 均匀化方法 有限元方法 

分 类 号：TM315[电气工程—电机] TB332[一般工业技术—材料科学与工程]