Simulation analysis of deformation behavior and resilience of Ni-based alloy canted coil spring for dynamic seal

YU Yuxi; ZHANG Weibin; SUN Yi; CONG Minghui; ZHU Jian; SONG Jingyuan

doi:10.7527/S1000-6893.2021.25527

ACTA AERONAUTICAET ASTRONAUTICA SINICA >

2022 , Vol. 43 >Issue 7: 425527 - 425527

DOI: https://doi.org/10.7527/S1000-6893.2021.25527

Material Engineering and Mechanical Manufacturing

Simulation analysis of deformation behavior and resilience of Ni-based alloy canted coil spring for dynamic seal

YU Yuxi ,
ZHANG Weibin ,
SUN Yi ,
CONG Minghui ,
ZHU Jian ,
SONG Jingyuan

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1. College of Materials, Xiamen University, Xiamen 361005, China;
2. AECC Shenyang Engine Research Institute, Shenyang 110015, China

Received date: 2021-03-18

Revised date: 2021-05-20

Online published: 2021-05-20

Supported by

National Natural Science Foundation of China (51675452); Joint Fund for Equipment Pre-Research and Aerospace Science and Technology (6141B061012)

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Abstract

The sealing section of the reentry aircraft control surface and ramjet is mainly sealed by the dynamic sealing structure. As an important factor affecting the dynamic sealing performance of the sealing structure, the canted coil spring is used as the resilient element of the dynamic sealing structure to provide resilience to compensate for gap changes, and is made of the age-strengthened Ni-based alloy Inconel X-750. To study the force and deformation behavior of the canted coil spring, a parametric modeling of the spring was established by the parametric equation. The structural static simulation of the spring was carried out by the finite element analysis software ANSYS, and the influence of the structural parameters of the spring on the spring's force was discussed. A comparison of the results of the simulation analysis with the test results at room temperature shows that the force-compression curve between them is almost the same, proving the reliability of the finite element simulation analysis. In compressing the canted coil spring to 50% of its height, The simulation results show that, the force of the canted coil spring tends to decrease with the increase of the height, width and cant amplitude, while the force increases with the increase of the pitch and wire diameter. The relationship between the force and wire diameter shows a high-order nonlinear relationship. The temperature affects the resilience of the spring by affecting the elasticity modulus of Inconel X-750.

Key words： canted coil spring; finite element analysis; parametric modeling; Inconel X-750; resiliencehttp

Cite this article

YU Yuxi , ZHANG Weibin , SUN Yi , CONG Minghui , ZHU Jian , SONG Jingyuan . Simulation analysis of deformation behavior and resilience of Ni-based alloy canted coil spring for dynamic seal[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022 , 43(7) : 425527 -425527 . DOI: 10.7527/S1000-6893.2021.25527

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