Stochastic response and flutter analysis of the thrust-vectoring nozzle sidewall coupling plate under aerothermal loading

IF 5.7 1区工程技术 Q1 ENGINEERING, CIVIL

Thin-Walled Structures Pub Date : 2025-02-28 DOI:10.1016/j.tws.2025.113132

Hui Dong , Rui Zhong , Qingshan Wang , Long Yu

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引用次数: 0

Abstract

The thrust-vectoring nozzle sidewall coupled plate, composted of laminated composites with layer arrangements, is an important part of the tail section of the jet fighter's nozzle, and is constantly subjected to aerodynamic and thermal loads during operation. This paper investigates the modal characteristics, stochastic response characteristics, and flutter phenomenon of the thrust-vectoring nozzle sidewall coupled plate under aerothermal loading. The equations of the thrust-vectoring nozzle sidewall coupled plate are derived and solved by combining the supersonic piston theory and the Mindlin plate theory. Each displacement of the plate is represented by the first-class Chebyshev polynomial. Artificial spring is used to simulate the boundary and coupled conditions. The trapezoidal and triangular plates are mapped to a regular region by coordinate transformation for integral solution. The results obtained from this method are in good agreement with those from the finite elements and literature, verifying its accuracy and efficiency. In addition, the effects of relevant parameters on the flutter boundary and stochastic response process of the thrust-vectoring nozzle sidewall coupled plate are analyzed.

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来源期刊

Thin-Walled Structures 工程技术-工程：土木

CiteScore

9.60

自引率

20.30%

发文量

801

审稿时长

66 days

期刊介绍： Thin-walled structures comprises an important and growing proportion of engineering construction with areas of application becoming increasingly diverse, ranging from aircraft, bridges, ships and oil rigs to storage vessels, industrial buildings and warehouses. Many factors, including cost and weight economy, new materials and processes and the growth of powerful methods of analysis have contributed to this growth, and led to the need for a journal which concentrates specifically on structures in which problems arise due to the thinness of the walls. This field includes cold– formed sections, plate and shell structures, reinforced plastics structures and aluminium structures, and is of importance in many branches of engineering. The primary criterion for consideration of papers in Thin–Walled Structures is that they must be concerned with thin–walled structures or the basic problems inherent in thin–walled structures. Provided this criterion is satisfied no restriction is placed on the type of construction, material or field of application. Papers on theory, experiment, design, etc., are published and it is expected that many papers will contain aspects of all three.