Results 11 to 20 of about 253 (177)

Research progress in repair and remanufacture of compressor blisk

Journal of Aeronautical Materials
The application of compressor blisk is one of the typical technologies of high-performance engines. However，due to its contact with high-speed airflow containing various solids，a variety of different forms of structural damage and performance degradation
ZHANG Gao, LIU Meijun, HAN Jiaqi, LIU Hong, YANG Guanjun   +4 more
doaj   +2 more sources

Vinyl Acetate-Enhanced Polyvinyl Chloride Gel with High Electroadhesion and Self-Heating-Tunability for Soft Robots in Freezing Environments. [PDF]

Adv Sci (Weinh)
This study presents a vinyl acetate‐enhanced electroactive polyvinyl chloride gel with low‐voltage deformation, strong electro‐adhesion, and controlled heating. Leveraging these synergistic properties, this work develops soft robots capable of fast locomotion, swarm reconfiguration, and low‐temperature operation (‐50°C).
Wei C, Zhang J, Liu L, Yan H, Wang K, He Y, Cui M, Zhu Z, Zhu J, Zhang W, Wang Z, Lu J.   +11 more
europepmc   +2 more sources

Study on Residual Stress in Disc-Milling Grooving of Blisks. [PDF]

Materials (Basel), 2022
The disc-milling method is expected to increase the grooving efficiency of blisks. However, there are few studies about the residual stress on a blisk during disc-milling grooving. In this study, a single-factor experiment and an orthogonal experiment of blisk disc-milling and grooving were designed to obtain the residual stress.
Xin H, Xing T, Dai H, Zhang J, Yao C, Cui M, Zhang Q.   +6 more
europepmc   +3 more sources

Improvement in the efficiency of the five-axis machining of aerospace blisks. [PDF]

Sci Prog, 2022
Blisks are not easily machined because of their complex curved surfaces and the high-precision requirements of surface machining. Lightweight alloy materials with superior mechanical properties, such as titanium alloy and stainless steel, are popular material choices for manufacturing turbine blisks.
Lee JN, Yeh HL, Shie MJ, Chen TH.
europepmc   +3 more sources

FLUTTER ANALYSIS OF BLISKS WITH FRICTION RING DAMPERS [PDF]

Proceedings of Global Power & Propulsion Society, 2022
Aeroelastic flutter is a phenomenon when blades experience an aeroelastic selfexcitation from the surrounding air resulting in the full destruction of aeroengines. It poses a big challenge for aeroengine bladeddisks design, especially for integrally bladeddisks (blisks).
Sun, Yekai, Yuan, Jie, Salles, Loïc
openaire   +4 more sources

Sensitivity Analysis of BLISK Airfoil Wear [PDF]

International Journal of Turbomachinery, Propulsion and Power, 2018
The decreasing performance of jet engines during operation is a major concern for airlines and maintenance companies. Among other effects, the erosion of high-pressure compressor (HPC) blades is a critical one and leads to a changed aerodynamic behavior, and therefore to a change in performance.
Kellersmann, Andreas, Reitz, Gerald, Friedrichs, Jens   +2 more
openaire   +3 more sources

Harmonic Mistuning of Blisks [PDF]

PAMM, 2015
AbstractThe paper describes a new method to calculate the maximum amplificationof blade vibrations of a bladed disk or blisk subject to manufacturing tolerances. Two effects of mistuned blisks are analyzed in this paper. The separation of two orthogonal nodal diameters are shown and described in detail.
Linus Pohle, Lars Panning‐von Scheidt, Jörg Wallaschek   +2 more
openaire   +1 more source

Application of high‐performance DIC for a comprehensive evaluation of biaxial fatigue crack growth experiments

Strain, Volume 59, Issue 6, December 2023., 2023
Abstract Precise determination of the remaining service life of technical components requires sufficient knowledge of fatigue crack growth behaviour and the growth rate of defects. Cracks in real components often experience multiaxial far field stresses due to their complex geometry and composite loadings acting on it.
Andreas Blug, Fabian Conrad, Alexander Bertz, Christian Kontermann, Daniel Carl, Matthias Oechsner   +5 more
wiley   +1 more source

4D Additive–Subtractive Manufacturing of Shape Memory Ceramics

Advanced Materials, Volume 35, Issue 39, September 27, 2023., 2023
An efficient, precise, and scalable four‐dimensional (4D) additive–subtractive manufacturing paradigm for ceramics with multimode shape memory capabilities is developed. The balance between thermal expansion and shrinkage is the mechanism for ceramic 4D printing.
Guo Liu, Xiaofeng Zhang, Xinya Lu, Yan Zhao, Zhifeng Zhou, Jingjun Xu, Jianan Yin, Tao Tang, Peiyu Wang, Shenghui Yi, Jiafeng Fan, Xueshi Zhuo, Yu Hin Chan, Wui Leung Wong, Haidong Bian, Jun Zuo, Yu Dai, Jian Wu, Jian Lu   +18 more
wiley   +1 more source

A Critical Review of Laser Shock Peening of Aircraft Engine Components

Advanced Engineering Materials, Volume 25, Issue 16, August 2023., 2023
Laser shock peening (LSP) can effectively improve the fatigue performance of aeroengine components. This review provides an overview of the development of LSP for use in treating aircraft engine components over the past three decades, focusing on the limitations and challenges associated with the application of LSP for treating critical aircraft engine
Yixuan Ye, Yu Zhang, Tao Huang, Shikun Zou, Yalin Dong, Han Ding, Vijay K. Vasudevan, Chang Ye   +7 more
wiley   +1 more source