Title:
A Simulation-Based Framework for Structural Loads Assessment during Dynamic Maneuvers
A Simulation-Based Framework for Structural Loads Assessment during Dynamic Maneuvers
Authors
Goron, Gael
Duca, Ruxandra
Sarojini, Darshan
Shah, Somil R.
Chakraborty, Imon
Briceno, Simon
Mavris, Dimitri N.
Duca, Ruxandra
Sarojini, Darshan
Shah, Somil R.
Chakraborty, Imon
Briceno, Simon
Mavris, Dimitri N.
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Abstract
Federal Aviation Regulations pertaining to structural integrity are key drivers in aircraft design and certification, and often involve critical loads occurring during dynamic maneuvers. In the context of increasing costs of testing and the general trend towards
parametric design, there is a need for a more thorough consideration of such dynamic load cases earlier in the design process. In this work, a simulation framework is introduced to assess structural requirements stemming from such dynamic load conditions. Relevant aspects of the dynamics of the aircraft, the control system, and the pilot are modeled in
order to simulate the maneuver and thereafter obtain inertial and aerodynamic loads on
the empennage during the simulated maneuver. The loads are then translated into structural shear forces and bending moments through structural post-processing routines. This approach is demonstrated for the case of a representative business jet during the checked pitch maneuver. The analyses are repeated for three weight conditions and over the flight
envelope for the aircraft from which the load cases resulting in the most constraining loads
are determined.
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2017-06
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Paper