Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Pingchao Yu"'
Publikováno v:
Mathematics, Vol 12, Iss 3, p 454 (2024)
The inter-shaft graphite seal is a common structure in the dual-rotor system, and may generate nonlinear lateral excitation when there is large relative angular motion at the seal position. This paper represents the first attempt to study the nonline
Externí odkaz:
https://doaj.org/article/538a14a665254cd9bbedfee7feb32057
Publikováno v:
Chinese Journal of Aeronautics. 35:184-203
This paper aims to gain insight into the nonlinear modal characteristics and the possible influence of the modes on the responses for the practical dual-rotor system with rub-impact in aero-engine. The finite solid element method combined with a cons
Publikováno v:
Chinese Journal of Aeronautics, Vol 34, Iss 1, Pp 209-225 (2021)
Dry whip motion is an instability of rubbing rotor system and may cause catastrophic failures of rotating machinery. Up to now, the related mechanisms of the dry whip is still not well understood. This paper aims to build the relationship between the
Publikováno v:
Chinese Journal of Aeronautics, Vol 33, Iss 6, Pp 1642-1660 (2020)
Substantial unbalance may be caused by fan blade off during the operation period of gas turbine engines, and related dynamic problems are very critical to the safety design of rotor system in aero-engine. This article aims to understand lateral-torsi
Autor:
Guo Chen, Pingchao Yu
Publikováno v:
Journal of the Brazilian Society of Mechanical Sciences and Engineering. 43
In this article, the nonlinear dynamic characteristics of a rotor–stator rubbing system, which simultaneously considers the dynamical characteristics of rotor and stator as well as their coupled effect produced by rub-impact, are investigated from
Publikováno v:
Mechanical Systems and Signal Processing. 116:443-461
A rub-impact can bring the impact load and friction force onto the rotor, and in the meantime, it can also produce the additional effect of changing the stiffness of the rotor system. Past analysis and numerical simulation work related to rub-impact
Publikováno v:
International Journal of Non-Linear Mechanics. 140:103901
Publikováno v:
European Journal of Mechanics - A/Solids. 92:104468
Spline couplings are widely used to transfer rotary motion in rotatory machinery. The local stiffness nonlinearity caused by spline engaging teeth may significantly affect rotordynamics; however, it is usually ignored in most analyses. In this paper,
Publikováno v:
Mechanical Systems and Signal Processing. 106:158-175
Fan Blade Out (FBO) from a running rotor of the turbofan engine will not only introduce the sudden unbalance and inertia asymmetry into the rotor, but also apply large impact load and induce rotor-to-stator rubbing on the rotor, which makes the mass,
Publikováno v:
Chinese Journal of Aeronautics, Vol 31, Iss 3, Pp 498-513 (2018)
Intermittent rub-impact, during which the contact between rotor and stator is characterized by a “bouncing” or intermittent type of behavior, is one of the most common rubbing forms in rotating machinery. When the intermittent rub-impact occurs,