Results 31 to 40 of about 242,308 (112)

Vibration fatigue comparative test and life prediction for titanium alloy connection structures

Hangkong gongcheng jinzhan
A large number of mechanical connection structures in aircraft face vibration fatigue problems，and the evaluation of vibration fatigue performance is the key to determine the service life，safety design and evaluation of the structure.
HE Shi, LIU Xiaochuan, LIU Haihan, LI Kaixiang, BAI Chunyu   +4 more
doaj   +1 more source

IJSC Community Review Announcement

International Journal of Strength and Conditioning, 2021
International Journal of Strength and Conditioning
doaj   +1 more source

Research on Suppression of Vibration Caused by Combustion Pressure Pulsation in Aircraft Engines

Shock and Vibration
Abnormal high-energy narrowband signals appeared in the aircraft engine test. By analyzing the characteristics of the vibration signals and the pressure pulsation signals in the measurement point data of the engine, it can be speculated that the abnormal
Liang Hong, Chao-Ping Zang, He-Jiong Ji, Qiu-Xia Yu, Yun-Fan Jiang, Lian Shen   +5 more
doaj   +1 more source

Research on influence law of circuit parameters on heating characteristics of graphite heating elements

Hangkong gongcheng jinzhan
Circuit parameters are the decisive factors for the heating performance of graphite heating elements，and the research on the influence of circuit parameters is the basis for the design of high-performance and high-reliability graphite heaters.
LI Junpeng, LI Shiping, WANG Zhenya, CONG Linhua, WU Jingtao   +4 more
doaj   +1 more source

Research progress of ultrasonic in-situ nondestructive testing technology for aircraft structure

Journal of Aeronautical Materials
Damage detection is a critical link of aviation equipment development，field operation and maintenance，which directly affects the development process and service safety of aircraft structure.
ZHANG Wei, FAN Junling, ZHAN Shaozheng, YANG Pengfei, JIA Wenbo   +4 more
doaj   +1 more source

Random Vibration Fatigue Life Analysis of Aeroengine Bolts Using the Frequency-Domain Method

Fatigue of Aircraft Structures
Bolt connections are widely used in aircraft engines due to their advantages of high stiffness, low weight, and ease of assembly and disassembly. However, they are subjected to complex stress states in service, including high preloads, combustion-induced
Tian Lilin, Wang Jun, Zhang Chaofeng, Guo Yuchao, Chang Liang   +4 more
doaj   +1 more source

Optimum Selection Analysis of Composite Cap Cone

Engineering Proceedings
An in-depth analysis was conducted on the dynamic strength design optimization of carbon fiber composite cap cones in aircraft engines subjected to bird body impacts. Initially, the top, 1/4, 1/2, 3/4, and root positions of the cap cone’s generatrix were
Jijun Liu, Yongping Jiang, Kaixiang Li, Yafeng Wang   +3 more
doaj   +1 more source

Calculation and analysis of heat generation of aero-engine bearing-support system

Hangkong gongcheng jinzhan
The heat source analysis and quantitative calculation of heat production of the bearing-support structure system can provide a reliable basis for the thermal protection design of the bearing cavity.
SUN Peng, MU Qinqin, CHEN Yonghui, YAN Qun   +3 more
doaj   +1 more source

Mechanism-Driven Forward Design Methodology and Experimental Validation of Dry Friction Dampers for Turbine Blade Vibration Control

Machines
To elucidate the damping mechanism of platform dry friction dampers for turbine blades and optimize their design parameters, this study establishes a two-dimensional global–local unified sliding dry friction damping model.
Qinqin Mu, Qun Yan, Chao Hang, Yonghui Chen   +3 more
doaj   +1 more source

A review of experimental modal analysis methods and their applications in aerospace vehicles

Hangkong gongcheng jinzhan
Experimental modal analysis is a method of measuring the natural vibration characteristics of a structure through experiments. The analysis results are mainly used to modify the structural dynamic models and provide data support for structural dynamics ...
HUI Xinyu, LIU Fan, LI Xiaodong, SONG Qiaozhi   +3 more
doaj   +1 more source