The modeling and experiment study on temperature characteristics of the rub-impact of titanium alloy rotor-stator system

IF 2.8 3区工程技术 Q2 MECHANICS International Journal of Non-Linear Mechanics Pub Date : 2025-02-05 DOI:10.1016/j.ijnonlinmec.2025.105036

Yongfang Zhang , Hongwei Xu , Yiwei Zhao , Yanjun Lü , Xinliang Yang , Li Xiong

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Abstract

The rub-impact of rotor-stator system occurs when the relative motion gap between the blades and the casing exceeds radius clearance during the operation of aero-engine. It is great significant to study the temperature variations during the rub-impact of rotor-stator system for preventing combustion. The effects of nonlinear contact, centrifugal force, normal acceleration are considered to model the rub-impact contact forces of a rotor-stator system based on Hertz contact theory. The temperature field of the rub-impact of the rotor-stator system is calculated using the finite difference method by considering frictional heat generation, heat distribution, and heat conduction. Meanwhile, a rotor-stator rubbing experiment is conducted to measure the temperature of the contact surface under the operational conditions. The numerical results by the proposed method are in good agreement with the experiment results and the mean relative error is 2.96%. The proposed method can predict the temperature field on the rub-impact surface of the rotor-stator system accurately.

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来源期刊

International Journal of Non-Linear Mechanics 物理-力学

CiteScore

5.50

自引率

9.40%

发文量

192

审稿时长

67 days

期刊介绍： The International Journal of Non-Linear Mechanics provides a specific medium for dissemination of high-quality research results in the various areas of theoretical, applied, and experimental mechanics of solids, fluids, structures, and systems where the phenomena are inherently non-linear. The journal brings together original results in non-linear problems in elasticity, plasticity, dynamics, vibrations, wave-propagation, rheology, fluid-structure interaction systems, stability, biomechanics, micro- and nano-structures, materials, metamaterials, and in other diverse areas. Papers may be analytical, computational or experimental in nature. Treatments of non-linear differential equations wherein solutions and properties of solutions are emphasized but physical aspects are not adequately relevant, will not be considered for possible publication. Both deterministic and stochastic approaches are fostered. Contributions pertaining to both established and emerging fields are encouraged.