带有双线性非线性全动舵面气动弹性的数值与试验研究

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振动与冲击 ›› 2020, Vol. 39 ›› Issue (19) : 234-242.

论文

李治涛1,2,3 ， 韩景龙 3，员海玮 3

作者信息 +

Simulation and tests for aeroelasticity of a fully moving rudder surface with bilinear nonlinearity

LI Zhitao1,2,3, HAN Jinglong3, YUAN Haiwei3

Author information +

文章历史 +

摘要

基于结构刚度非耦合，设计了在扭转方向存在双线性非线性的全动舵面，并对其开展了数值仿真与风洞试验研究。用接触对模拟双线性非线性，基于CFD/CSD耦合建立了该舵面数值仿真模型，考虑了初始接触刚度、触点震颤和接触摩擦力等因素。结果表明：初始接触刚度变化，对数值模拟所得极限环幅值几乎没有影响；采用接触时间控制能够有效解决触点震颤，使流固耦合模拟过程数值稳定；接触摩擦力增大，数值模拟所得极限环幅值减小；数值计算所得极限环幅值随动压的变化规律与风洞试验吻合。

Abstract

Based on non-coupling of structure stiffness, a fully moving rudder surface with bilinear nonlinearity in torsional direction was designed, and numerical simulation and wind tunnel tests were done for it. Using contact pair to simulate bilinear nonlinearity, a numerical simulation model based on CFD/CSD coupling for this control surface was established considering initial contact stiffness, contact point chattering and contact friction force, etc. factors. The study results showed that change of initial contact stiffness has little effect on the limit cycle amplitude obtained using numerical simulation; using contact time control can effectively solve contact point chattering, and make the fluid-structure interaction simulation process be numerically stable;with increase in contact friction force, the limit cycle amplitude obtained using numerical simulation decreases;the varying law of the limit cycle amplitude obtained using numerical simulation with variation of dynamic pressure agrees well with that obtained using wind tunnel tests.

导出引用

李治涛1,2,3 ， 韩景龙 3，员海玮 3. 带有双线性非线性全动舵面气动弹性的数值与试验研究[J]. 振动与冲击, 2020, 39(19): 234-242

LI Zhitao1,2,3, HAN Jinglong3, YUAN Haiwei3. Simulation and tests for aeroelasticity of a fully moving rudder surface with bilinear nonlinearity[J]. Journal of Vibration and Shock, 2020, 39(19): 234-242

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