Relook at Aileron to Rudder Interconnect

Defence science journal

article

M. Jayalakshmi¹  Vijay V. Patel¹  Giresk K. Singh² 

[1] Integrated Flight Control Systems, Aeronautical Development Agency;CSIR-National Aerospace Laboratories

关键词: Aircraft;    Control law;    Flight;    Aileron to rudder interconnect gain;    ARI;    Reconfiguration;   

DOI  :  10.14429/dsj.71.15347

学科分类：社会科学、人文和艺术（综合）

来源: Defence Scientific Information & Documentation Centre

【 摘 要 】

The implementation of interconnect gain from aileron to rudder surface on the majority of the aircraftis to decrease sideslip which is generated because of adverse yaw with the movement of control stick in lateral axis and also enhances the turning rate performance.The Aileron to Rudder Interconnect (ARI)involves significant part to decouple the Dutch roll oscillations from roll rate response to aileron command. ARI is feed-forward gain whichis susceptible to aircraft system uncertainty. Incorrect ARI gain can lead to side slip buildup which can cause aircraft to depart in case of fault scenarios. Four systematic ARI design methods are proposed. One of the proposed methods which use the norm of ARI transfer function at roll damping frequency is suitable for online reconfiguration of control law. The reconfiguration of ARI gain is illustratedwith the simulation responses of fault scenario case of aileron surface damage.

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