Gust loads on aircraft

Abstract

An important prerequisite for the design, assessment and certification of aircraft and their associated control systems is a quantitative specification of the environment in which the aircraft is intended to operate, for example, atmospheric gust. Gust loads on aircraft may induce detrimental influences such as increased aerodynamic and structural loads, structural deformation and decreased flight dynamic performance. This paper presents a systematic and comprehensive overview of important concepts and applications of gust loads on aircraft. This overview includes a brief research background, concepts, research techniques, influences and load alleviation measures of gust. Finally, we summarise some potential improvements in the future work. It is also recommended to learn from previous experiences to avoid aviation accidents due to flight through atmospheric gusts and turbulence.

Robust Trajectory-Tracking Control of a Rotorcraft Using Immersion-and-Invariance-Based Adaptive Backstepping Control

“…in Equations ( 4) and ( 5) can cause Δf n . Also, wind gust typically causes the acceleration increment to the aircraft [32]. Thus, the lumped disturbance d can be expressed as the sum of Δf n and d external [33].…”

Insight into the factors affecting the safety of take-off and landing of the ship-borne helicopter

“…The pilot workload, physical and/or mental, depends on helicopter flight characteristics, ship motions, the turbulence levels encountered, visibility and visual cues. In addition, it has been well known that meteorological conditions, such as gust, 84 icing, 85 and heavy rain, 86 have a catastrophic effect on helicopter performance, especially in the critical landing and take-off phase. The unsteady aerodynamic loads experienced by the helicopter during deck landing task are widely acknowledged as the critical cause of excessive pilot workload levels.…”

Assessment of discrete wind gust parameters: Towards the worst-case scenario of a FSI application in form of an inflated hemisphere

“…Another category of wind gust models, which are also part of the design standards, are the discrete gust models (Hoblit, 1988;Wu et al, 2019). They are less realistic but deterministic and offer a good alternative for the worst-case determination in the context of a computational framework in the time domain like in the present study.…”