噪声与振动控制2025，Vol.45Issue(3)：15-20,6.DOI:10.3969/j.issn.1006-1355.2025.03.003
动力涡轮叶-盘结构模态特性的界面参数规律研究
Interface Parameter Law of Modal Characteristics of Power Turbine Blade-disk Structures
摘要
Abstract
The blade disk coupling structure is a key structure in power turbomachinery.Analyzing and summarizing the influence laws of interface parameters on the modal characteristics of the blade-disk coupling system are the basis for ac-curate prediction of vibration characteristics and the design and development of the blade-disk structures.This article takes a power turbine as an example to establish a finite element simulation model of a blade-disk coupling structure with a fir-tree shaped discontinuous interface and a blade crown.Multiple sets of different interface parameters and operating states were set,and the modal characteristics of the blade-disk coupling system under different operating conditions were calculated.The influence of interface parameters on the modal characteristics of the blade-disk coupling system was analyzed.The research results indicate that the contact stiffness has the most significant impact on the vibration characteristics of the blade-disk structure among the interface parameters.This article provides a necessary theoretical support and technical guidance for the performance prediction and the improvement of the power turbine blade-disk coupling systems.关键词
振动与波/叶-盘结构/非连续界面/界面参数/模态特性Key words
vibration and wave/blade disk structure/discontinuous interface/interface parameters/modal characteris-tics引用本文复制引用
张晨,温猛,吴玉萍,袁巍,梅庆,荆建平..动力涡轮叶-盘结构模态特性的界面参数规律研究[J].噪声与振动控制,2025,45(3):15-20,6.基金项目
国家自然科学基金资助项目(12072190) （12072190）
国家科技重大专项资助项目(779608000000200007) （779608000000200007）
