Assessment of Similitude Behavior in Natural Frequencies of Printed Turbine Blade

作     者：MUHAMMAD Usman Safdar SHEN Xing EIMAN B.Saheby MUHAMMAD Usman Safdar;沈星;EIMAN B.Saheby

作者机构：State Key Lab of Mechanics and Control for Aerospace StructuresCollege of AeronauticsNanjing University of Aeronautics and AstronauticsNanjing 210016P.R.China Graduate SchoolChinese Aeronautical EstablishmentYangzhou 225111P.R.China 

出 版 物：《Transactions of Nanjing University of Aeronautics and Astronautics》 (南京航空航天大学学报（英文版）)

年 卷 期：2024年第41卷第4期

页      面：488-501页

核心收录：

学科分类：082502[工学-航空宇航推进理论与工程] 08[工学] 0825[工学-航空宇航科学与技术] 

基　　金：supported by the National Natural Science Foundation of China(No.12111540251) 

主　　题：AlSi10Mg poly-lactic acid(PLA) U-500 T106C blade BCC lattice structure 

摘      要：Improving structures involves comparing old and new designs on a key *** the percent change in performance is a method to *** paper proposes a cost-effective analogy by generating replicas of additive manufactured aluminum alloy(Al Si10Mg)body-centered cubic lattice(BCC)based turbine blade(T106C)with the same in poly-lactic acid(PLA)material and their comparison in the context of percent change for natural ***,a cavity is created inside the turbine blade(hollow blade).Natural frequencies are obtained experimentally and numerically by incorporating BCC at 50%and 80%of the cavity length into the hollow blade for both *** cost of manufacturing the metal blades is 90%more than that of the PLA *** two material blade designs show a similar percentage variation,as the first-order mode enhancs more than 5%and the second-order mode more than 4%.To observe the behavior in another material,both blades are analyzed numerically with a nickel-based U-500 material,and the same result is achieved,describing that percent change between designs can be verified using the PLA material.