Connection stiffness modeling of rotating dovetailed blade with macro-micro interface topography

Kang, Hehe; Li, Zhi-Min; Liu, Tao; Mei, Qing; Zhang, Xiaoyang

doi:10.1016/j.euromechsol.2023.105064

Cited by 5 publications

(1 citation statement)

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“…By modeling and simulating the stiffness of the joint of the dovetail head and the dovetail groove, a centrifugal force is applied to the bottom of the dovetail head in the model, which is used to simulate the centrifugal force generated by the high-speed rotation of the blade at work, and the tangential force caused by the strain generated by the high-speed rotation of the disc. While the increasing of the operating temperature, the Young's modulus of the dovetail joint will decrease, and it will then further have the consequence of reducing the stiffness of the dovetail joint [5]. It can be seen from the experimental results that the geometric structure of the studied blade will be more easily destroyed because of the higher friction coefficient [6].…”

Section: Stress and Strain Of Bladementioning

confidence: 96%

Jet engine blade: Design, material, and manufacturing

Liu

2023

TNS

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The engine is the most important part of an airplane. Since the blades of an engine are a major factor in jet engine performance, the research of engine blades has always been a hot topic in the field of aerospace. This paper summarizes the research status in the field of jet engine blades. As for the design of the jet engine blade, the design of aerofoil and the geometrical structure of the engine blade is introduced. In the material selection of engine blades, titanium alloy materials, and the application of composite materials are introduced. Electrochemical machining (ECM) and additive technology of engine blades are introduced. The differences between them and traditional casting techniques are compared. The comprehensive analysis shows that the research on engine blades is becoming more and more mature, but there are some challenges in further optimization of manufacturing technology and materials. This paper may offer a reference for the design of jet engine blade.

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Section: Stress and Strain Of Bladementioning

confidence: 96%