Influence of Pendulum Oscillation Plane on Total Angular Guidance Error

Influence of Pendulum Oscillation Plane on Total Angular Guidance Error

A.A. Sushchenko, PhD in Engineering, Associate Professor, Senior Lecturer of the Department 109b at Moscow Aviation Institute (NRU); Rostov region, Taganrog
e-mail: churochkina@beriev.com
A significant feature of hydroaviation is the ability of the aircraft to perform a number of tasks while afloat. In the presence of seawaves an aircraft can experience pitching in longitudinal and transverse directions, which must be taken into account, in autopilot system devices containing tilt sensors. In this article a model of differential oscillation sensors is considered: a beam differential model, a closed differential stick model and two options of practical implementation. The differential equation of motion of an angular pointing mechanism pendulum part has one degree of freedom and is defined by a generalized coordinates.
Physical and mathematical models of uniaxial oscillations and related to it pendulum sensors of heel or pitch, analyzed in the article, allow introducing constants, reflecting displacement of the suspension point, into calculation formulas. The resulting calculated constants allow the minimum errors of the sensors to be obtained when they are displaced by the maximum values from the centre of mass of the hydroplane’s boat.
Keywords: model, hydroaviation, uniaxial oscillations, autopilot system devices, points of suspension.
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DOI: 10.34214/2312-5209-2021-32-4-59-62

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