Additively Manufactured Balances for Propulsive Force Measurement
Additively Manufactured Balances for Propulsive Force Measurement
- Neue Suche nach: Devin E Burns
- Neue Suche nach: Peter A Parker
- Neue Suche nach: Karl T Edquist
- Neue Suche nach: Ashley M Korzun
- Neue Suche nach: Mark Schoenenberger
- Neue Suche nach: Matthew N Rhode
- Neue Suche nach: Devin E Burns
- Neue Suche nach: Peter A Parker
- Neue Suche nach: Karl T Edquist
- Neue Suche nach: Ashley M Korzun
- Neue Suche nach: Mark Schoenenberger
- Neue Suche nach: Matthew N Rhode
Propulsive forces and moments during powered descent are not understood well enough to design an entry, decent, and landing vehicle with high confidence using solely computational fluid dynamics modelling (CFD). Therefore, wind tunnel testing is required to quantify uncertainties in computational modeling and simulation. Wind tunnel balances are structural, high-precision, multi-axis force transducers that provide direct measurement of these aerodynamic forces and moments, however their complex designs make them costly and time consuming to produce and approaches used to manufacture them have not changed significantly since the 1960s. This work demonstrates that additive manufacturing (AM) can be used to manufacture wind tunnel balances with significantly reduced fabrication time and expense. Moreover, the design flexibility afforded by the additive manufacturing process has the potential to enable new capabilities with respect to measuring propulsion forces during entry, decent, and landing testing. Here we present two novel balance designs enabled by AM. One will provide direct measurement of aerodynamic interference forces and moments on powered descent models (retropropulsion forces) to support CFD validation and further development of Mars human landing vehicle concepts. The second design will be used to characterize a reaction control system during entry decent and landing testing over a wide Mach number range.
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Additively Manufactured Balances for Propulsive Force Measurement
JANNAF Additive Manufacturing for Propulsion Applications TIM ; 2020 ; VIRTUAL, US
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Englisch