增压侧喷管的极限载荷、安定及棘轮分析

IF 2.1 3区工程技术 Q2 ENGINEERING, CIVIL

Smart Structures and Systems Pub Date : 2021-03-01 DOI:10.12989/SSS.2021.27.3.421

Xiaohui Chen, Kun Zhuang, Xuanchen Zhu, Haofeng Chen

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引用次数: 0

摘要

本文基于线性匹配法(LMM)对斜喷管的极限载荷、安定极限和棘轮极限进行了评估。为了研究斜喷管的极限载荷、安定极限和棘轮极限的影响因素，分别建立了不同倾角、不同径厚比和不同管径厚比的斜喷管模型。首先对斜喷管的极限载荷、安定极限和棘轮极限进行了研究。同时，还研究了加载方式对安定极限和棘轮极限的影响。其次，分别建立了不同缺陷长度、宽度和深度的斜喷嘴;研究了加载路径对含缺陷斜喷管安定极限和棘轮极限的影响。最后，基于线性匹配方法得到了安定极限图和棘轮极限图。通过ABAQUS增量弹塑性分析验证了安定极限图和棘轮极限图的正确性。

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Limit load, shakedown and ratchet analysis of pressurized lateral nozzle

This paper evaluates the limit load, shakedown limit and ratchet limit of the oblique nozzle based on the linear matching method (LMM). In order to study the influencing factors of the limit load, shakedown limit and ratchet limit of the oblique nozzle, oblique nozzle models with different dip angles, diameter-to-thickness ratios of the oblique nozzle and diameterto- thickness ratios of the main pipe are established, respectively. Firstly, the limit load, shakedown limit and ratchet limit of the oblique nozzle are studied. At the same time, the influence of the loading mode on the shakedown limit and ratchet limit is also studied. Secondly, oblique nozzles with different defect lengths, widths and depths are established, respectively. The influence of loading paths on shakedown limit and ratchet limit of oblique nozzles with defects are also studied. Finally, shakedown limit and ratchet limit diagrams are obtained based on linear matching method. The correctness of shakedown limit and ratchet limit diagrams is validated by ABAQUS incremental elastic-plastic analysis.

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来源期刊

Smart Structures and Systems 工程技术-工程：机械

CiteScore

6.50

自引率

8.60%

发文量

审稿时长

9 months

期刊介绍： An International Journal of Mechatronics, Sensors, Monitoring, Control, Diagnosis, and Management airns at providing a major publication channel for researchers in the general area of smart structures and systems. Typical subjects considered by the journal include: Sensors/Actuators(Materials/devices/ informatics/networking) Structural Health Monitoring and Control Diagnosis/Prognosis Life Cycle Engineering(planning/design/ maintenance/renewal) and related areas.