Mr. Bing liang Luo Profile

Bing liang Luo

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Proceedings Article | 14 October 2021 Paper

Study on influence of reinforcement ring clearance on strength and stiffness performance of expansion joint

Bing liang Luo, Yun Wang, Tong Xuan Zou, Chao Gu

Proceedings Volume 11930, 1193011 (2021) https://doi.org/10.1117/12.2611262

KEYWORDS: Temperature metrology, Thermodynamics, Manufacturing, Wave plates, Thermal modeling, Computer simulations, Resistance, Numerical analysis, Metals, Clouds

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In order to deal with the complex working conditions of high temperature and high pressure and improve the bearing capacity of expansion joint, the reinforced bellows expansion joint with reinforcing ring is often used in engineering. At present, most of the studies on the strength performance of the reinforced bellows expansion joint do not consider the influence of the assembly gap between the reinforcing ring and the bellows on the strength performance of the expansion joint, and ignore the thermal stress caused by the temperature difference between the inner and outer surfaces of the bellows under high temperature conditions. In this paper, the effect of the gap between the stiffeners and bellows on the high temperature strength of the expansion joint was studied by full thermodynamic coupling numerical analysis method. The maximum Mises stress of the expansion joint with the gap between the stiffeners and bellows under different temperature differences was obtained. The strength performance of the expansion joint can be effectively improved by selecting the optimal clearance between the stiffening ring and the bellows, and due to the different temperature difference between the inner and outer surfaces of the bellows, the clearance value of the stiffening ring is different. The conclusion provides reference for the theoretical research, optimization design and manufacture of the reinforced bellows expansion joint under high temperature and high pressure conditions.

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