Research Paper Poster

of 1/1
Abstract •Stability derivatives are calculated by using DATACOM •Transfer function θ/δe is found by using longitudinal stability derivatives i.e. -1.6 s^2 - 0.96 s - 0.01 --------------------------------- ----------------- s^4 + 0.9 s^3 + 3.3 s^2 + 0.02 s - 0.003 •Three displacement autopilots are designed; 1) Blackelock displacement autopilot 2) Modified blackelock autopilot 3) Self designed autopilot with PID compensator Methodology Results Design Parameters Jan Roskam, Airplane Flight Dynamics And Automatic Flight Control, Part 1. John H. Blake Lock, Automatic Control of Aircraft and Missiles, Second Edition. • http:// gangmadhu.blogspot.com/ 2010/09/history-of- autopilot.html Stone, R. H., “Aerodynamic Modeling of the Wing-Propeller Interaction for a Tail-Sitter Unmanned Air Vehicle", Journal of Aircraft, Vol. 45, No. 1, pp. 198 – 209, 2008 WANG Xiao-Yan, WANG Xin-min, XIAO, Ya-hui,YU Xiang, “Design . 3D view of A-3: Implementation 1) Blackelock Displacement Autopilot: 2) Modified Blackelock Displacement Autopilot: 3) Self designed autopilot with PID compensator: Inside PID block: Longitudinal stability derivatives: Step Responses of 1) Blackelock displacement autopilot 2) Modified blackelock autopilot and 3) Self designed autopilot with PID compensator 1 ) 2 ) 3 ) Conclusion References Stability and Control is the most important factor to be taken into account, during all phases of design of an aircraft specifically during preliminary design. Converse relation exists between stability and control. Stability requirements are greater in transport airliners, because transport plane does not require fast maneuvers. This paper discusses the comparison between different displacement autopilots of self- designed transport airliner A-3. Results of all three autopilots are analyzed on the basis of root locus and best suited displacement autopilot for A-3 Displacemen t Autopilots Damping Ratio Settling Time(sec ) Remarks Blackelock’ s Autopilot 1.0 150 Poor Modified Blackelock’ s Autopilot 0.54 6 Good Self- designed Autopilot 0.65 0.1 Excellen t Cruise Mach 0.8 Mach Max 0.92 Number of Passengers 350 Number of Crew 16 Cargo 60 tons Total Weight 446125 lb Range 4414.7 miles Endurance 17 hours Take off distance 7236.88 ft Landing distance 7058.6 ft Absolute Ceiling 38000ft Price Per Aircraft 191.48 million $
  • date post

    20-Jul-2016
  • Category

    Documents

  • view

    6
  • download

    2

Embed Size (px)

description

Research paper poster for poster presentation. It helps to prepare your own poster.

Transcript of Research Paper Poster

  • Stability derivatives are calculated by using DATACOM

    Transfer function /e is found by using longitudinal stability derivatives i.e.-1.6 s^2 - 0.96 s - 0.01--------------------------------------------------s^4 + 0.9 s^3 + 3.3 s^2 + 0.02 s - 0.003

    Three displacement autopilots are designed;Blackelock displacement autopilotModified blackelock autopilotSelf designed autopilot with PID compensator

    Jan Roskam, Airplane Flight Dynamics And Automatic Flight Control, Part 1.John H. Blake Lock, Automatic Control of Aircraft and Missiles, Second Edition.http://gangmadhu.blogspot.com/2010/09/history-of-autopilot.htmlStone, R. H., Aerodynamic Modeling of the Wing-Propeller Interaction for a Tail-Sitter Unmanned Air Vehicle", Journal of Aircraft, Vol. 45, No. 1, pp. 198 209, 2008WANG Xiao-Yan, WANG Xin-min, XIAO, Ya-hui,YU Xiang, Design of robust H_ controller for UAVs three-dimensional formation flight, Control and Decision, 2012.3D view of A-3:

    Blackelock Displacement Autopilot:

    2) Modified Blackelock Displacement Autopilot:3) Self designed autopilot with PID compensator:Inside PID block:Longitudinal stability derivatives:Step Responses of 1) Blackelock displacement autopilot 2) Modified blackelock autopilot and 3) Self designed autopilot with PID compensator

    1)2)3)Stability and Control is the most important factor to be taken into account, during all phases of design of an aircraft specifically during preliminary design. Converse relation exists between stability and control. Stability requirements are greater in transport airliners, because transport plane does not require fast maneuvers.This paper discusses the comparison between different displacement autopilots of self-designed transport airliner A-3. Results of all three autopilots are analyzed on the basis of root locus and best suited displacement autopilot for A-3 is described.

    Displacement AutopilotsDamping RatioSettling Time(sec)RemarksBlackelocks Autopilot1.0150PoorModified Blackelocks Autopilot0.546GoodSelf-designed Autopilot0.650.1Excellent

    Cruise Mach0.8Mach Max0.92Number of Passengers350Number of Crew16Cargo60 tonsTotal Weight446125 lbRange4414.7 milesEndurance17 hoursTake off distance7236.88 ftLanding distance7058.6 ftAbsolute Ceiling38000ftPrice Per Aircraft191.48 million $

    *