Andrey Rybin

DOI Number: N/A

Conference number: IFASD-2015-089

This paper describes some results of the researching problem of detecting and analyzing hard landings. The numerical model of passenger aircraft with on-board device for measuring vertical acceleration is developed and applied. Flight data from an aircraft such as vehicle orientation, translational and angular velocities and weight represents initial conditions for the numerical simulation. Aircraft model includes flexible airframe and nonlinear landing gears. Vertical acceleration is measured by included to the model accelerometer with characteristics and location equal to the ones of the real device. Applying this model the accuracy of measuring vertical overload using on-board accelerometer during landing process is investigated. Difficulties of using overload for detecting max ground reactions in conditions of asymmetry landing are discussed. Developed model can be a useful tool for analyzing hard landings and conducted investigations may help to increase reliability of detecting hard landings using accelerometers.

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In Categories: 2. IFASD 2015, Loads
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