Results 21 to 30 of about 253 (177)

Heat‐Resistant Intermetallic Compounds and Ceramic Dispersion Alloys for Additive Manufacturing: A Review

Advanced Engineering Materials, Volume 24, Issue 7, July 2022., 2022
Additive manufacturing revolutionizes design possibilities by allowing geometric freedom. Simultaneously, advances in intermetallic compounds and ceramic dispersion alloys push operating temperature limits ever higher. Herein, the application of additive manufacturing methods to fabricate parts made from these advanced materials is reviewed ...
Vladislav Yakubov, Jamie J. Kruzic, Xiaopeng Li   +2 more
wiley   +1 more source

Bearing Early Fault Diagnosis Based on an Improved Multiscale Permutation Entropy and SVM

Shock and Vibration, Volume 2022, Issue 1, 2022., 2022
Bearing fault is a process of gradual development and deepening. In the early stage of the fault, if it can be found out in time and taken reasonable prevention and elimination measures, we can avoid serious losses and safety accidents. Therefore, the feature extraction and analysis of early weak fault has important practical significance.
Qunyan Jiang, Juying Dai, Faming Shao, Shengli Song, Fanjie Meng, Antonio Batista   +5 more
wiley   +1 more source

Microstructural Features, Tensile Properties, and Impact Toughness of Linear Friction Welded High‐Temperature Alloy Joints for Blisk Assembly Applications

Advances in Materials Science and Engineering, Volume 2022, Issue 1, 2022., 2022
The main objective of this investigation is to analyze the microstructure, tensile properties, and impact toughness of Ti6Al4V alloy joints developed using optimized parameters of linear friction welding (LFW) for gas turbine blisk assembly applications.
C. Mukundhan, P. Sivaraj, V. Balasubramanian, Tushar Sonar, Vijay Petley, Shweta Verma, Samson Jerold Samuel Chelladurai   +6 more
wiley   +1 more source

Blisk Specific Query Language (BLISQL) – An approach for domain specific data querying in Blisk Manufacturing

Procedia CIRP, 2023
Product lifecycle management (PLM) is constantly improved by a steadily growing amount of data collected along the product and process development chain. This data supports designing optimized geometries and manufacturing processes. For the optimization of the manufacturing process, data from process design and manufacturing are extracted and processed.
Schiller, Sven, Landwehr, Markus, Vinogradov, Georg, Ganser, Philipp, Bergs, Thomas   +4 more
openaire   +2 more sources

Step‐by‐Step Penalized Blind Kriging Methods for Surrogate Modeling

Mathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022
When building a surrogate model, it is important to identify a proper mean function for the kriging model. The commonly used variable selection method is the penalized blind kriging (PBK) method. But this method could lead to a low time efficiency, which is not suitable for experiments with time‐sensitive data.
Ziheng Feng, Min Li, Xiao Wang, Jianxin Zhao, Xinmin Li, Suzanne M. Shontz   +5 more
wiley   +1 more source

Digital Twin‐Driven Machine Condition Monitoring: A Literature Review

Journal of Sensors, Volume 2022, Issue 1, 2022., 2022
Digital twin (DT), aiming to characterise behaviors of physical entities by leveraging the virtual replica in real time, is an emerging technology and paradigm at the forefront of the Industry 4.0 revolution. The implementation of DT in predictive maintenance has facilitated its growth.
He Liu, Min Xia, Darren Williams, Jianzhong Sun, Hongsheng Yan, Xueliang Xiao   +5 more
wiley   +1 more source

Dynamic Characteristics Analysis of 3D Blade Tip Clearance for Turbine Blades with Typical Cracks

International Journal of Aerospace Engineering, Volume 2022, Issue 1, 2022., 2022
As well known, the crack is a typical fault of turbine blades, which is difficult to detect due to the weak fault features contained in the rotor vibration. Although some fault diagnosis methods based on blade tip timing (BTT) are proposed to detect blade cracks, the limited fault features can be extracted because the BTT signals contain only one ...
Xiaodong Zhang, Yiwei Xiong, Xin Huang, Bochao Fan, Zhen Zhao, Jiahao Zhu, Chuang Liu   +6 more
wiley   +1 more source

Compound Fault Diagnosis of Stator Interturn Short Circuit and Air Gap Eccentricity Based on Random Forest and XGBoost

Mathematical Problems in Engineering, Volume 2021, Issue 1, 2021., 2021
Taking the traction motor of CRH2 high‐speed train as the research object, this paper proposes a diagnosis method based on random forest and XGBoost for the compound fault resulting from stator interturn short circuit and air gap eccentricity. First, the U‐phase and V‐phase currents are used as fault diagnosis signal and then the Savitzky–Golay ...
Rui Tian, Fuyang Chen, Shiyi Dong, Juan P. Amezquita-Sanchez   +3 more
wiley   +1 more source

Trajectory optimization and experiment of robotic belt grinding blisk

Jin'gangshi yu moliao moju gongcheng, 2022
The blisk has the characteristics of complex structure and difficult material processing. Its machining accuracy and surface quality have a crucial impact on the overall performance of the aero-engine.
Fei LI, Shulin CHEN, Pangbo CUI, Xin WU, Guijian XIAO   +4 more
doaj   +3 more sources

Design Optimization and Burst Speed Prediction of a Ti2AlNb Blisk

International Journal of Aerospace Engineering, Volume 2021, Issue 1, 2021., 2021
The increasing demand for power, fuel efficiency, and safety of aeroengines has called for weight reduction and structural integrity examination of the critical components. This paper is aimed at performing a systematic investigation on the design of a high‐speed Ti2AlNb blisk, including disc geometry optimization and burst speed prediction ...
Yue Guo, Yi-xiong Liu, Yun-wu Wu, Hang Cao, Da Mo, Marco Morandini   +5 more
wiley   +1 more source