Autorotation performance of multi-rotor aircraft with partial power loss

Jianhua Zhang, Matthew W. Floros, Edward Smith

Research output: Contribution to conferencePaper

Abstract

This paper is to extend the Army DESCENT simulation program of single main rotor to multi-rotor aircraft. The X-15 tiltrotor aircraft, CH-47 type tandem rotor helicopter, and X-2 compound helicopter with a pusher propeller are the three multirotor configurations studied. An analytic model has been developed and integrated with a path optimization program, which is capable of predicting the autorotational performance of multi-rotor aircraft after partial power loss. Both partial power forced landing and recovery to fly away are investigated at different initial altitude and forward speed conditions. The characteristics of optimized flight path and controls are identified and discussed for each type of aircraft. High resolution height-velocity diagrams are generated to illustrate safe flight profiles of the aircraft after partial power loss.

Original languageEnglish (US)
StatePublished - Jan 1 2018
EventAHS International Technical Meeting on Aeromechanics Design for Transformative Vertical Flight 2018 - San Francisco, United States
Duration: Jan 16 2018Jan 18 2018

Other

OtherAHS International Technical Meeting on Aeromechanics Design for Transformative Vertical Flight 2018
CountryUnited States
CitySan Francisco
Period1/16/181/18/18

Fingerprint

Rotors
Aircraft
Compound helicopters
Helicopter rotors
Flight paths
Propellers
Landing
Recovery

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

Cite this

Zhang, J., Floros, M. W., & Smith, E. (2018). Autorotation performance of multi-rotor aircraft with partial power loss. Paper presented at AHS International Technical Meeting on Aeromechanics Design for Transformative Vertical Flight 2018, San Francisco, United States.
Zhang, Jianhua ; Floros, Matthew W. ; Smith, Edward. / Autorotation performance of multi-rotor aircraft with partial power loss. Paper presented at AHS International Technical Meeting on Aeromechanics Design for Transformative Vertical Flight 2018, San Francisco, United States.
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Zhang, J, Floros, MW & Smith, E 2018, 'Autorotation performance of multi-rotor aircraft with partial power loss' Paper presented at AHS International Technical Meeting on Aeromechanics Design for Transformative Vertical Flight 2018, San Francisco, United States, 1/16/18 - 1/18/18, .

Autorotation performance of multi-rotor aircraft with partial power loss. / Zhang, Jianhua; Floros, Matthew W.; Smith, Edward.

2018. Paper presented at AHS International Technical Meeting on Aeromechanics Design for Transformative Vertical Flight 2018, San Francisco, United States.

Research output: Contribution to conferencePaper

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Zhang J, Floros MW, Smith E. Autorotation performance of multi-rotor aircraft with partial power loss. 2018. Paper presented at AHS International Technical Meeting on Aeromechanics Design for Transformative Vertical Flight 2018, San Francisco, United States.