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Phugoid dynamic characteristic of hypersonic gliding vehicles
2011
Science China Information Sciences
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Phugoid dynamic characteristic of hypersonic gliding vehicles. ...
This paper focuses on the phugoid dynamic characteristic of hypersonic gliding vehicle. ...
Acknowledgements This work was supported by the National Natural Science Foundation of China (Grant Nos. 90916016, 50975280), and Hunan Provincial Innovation Foundation for Postgraduate. ...
doi:10.1007/s11432-011-4196-9
fatcat:6qq6so5jt5bsjlnkls4jwmzaei
Control strategy for maximizing reconnaissance range of hypersonic cruise vehicles
1992
Journal of Aircraft
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Appendix: Hypersonic Phugoid Analysis The hypersonic phugoid may be derived from the governing equations of motion by applying linear approximations, as
KAUFFMAN ET AL.: HYPERSONIC CRUISE VEHICLES
illustrated ...
'* The characteristic equation for the hypersonic phugoid motion is found to be
ods Cee ~ vi/(, _ Vi\ - 75 + B(s Vi) +24 ph 1 V2 =0
(Al)
vi g
T=
(A2)
This is an equation of second order with the following ...
doi:10.2514/3.46170
fatcat:nchjpm7zvnffvn5fib6c5fg7ze
Phugoid oscillations in optimal reentry trajectories
1981
Acta Astronautica
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Ahstraet--A major problem with operations of lifting reentry vehicle having an aft center-of-gravity location due to large engine mass at the rear is the required hypersonic trim to fight the desired trajectory ...
For the maximum-range problem, phugoid oscillation along an optimal trajectory is less severe as compared to a glide with maximum lift-to-drag ratio. ...
Phugoid oscillation As seen in Fig. 8 , a typical characteristic of maximum-range glide is the oscillation in the altitude. ...
doi:10.1016/0094-5765(81)90001-1
fatcat:3636grfpi5bgrdbmkf53xwaks4
Skip Re-Entry Trajectory Detection and Guidance for Maneuvering Vehicles
2020
Sensors
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The re-entry trajectory of maneuvering vehicles with medium to high hypersonic lift-to-drag ratios is generally planned using quasi-equilibrium flight conditions known from Space Shuttles. ...
Firstly, the oscillation frequency characteristics of the linearized re-entry motion equation of a vehicle are analyzed, and an approximate analytical relationship is constructed for skip altitude estimation ...
Conflicts of Interest: We declare that there is no conflict of interest regarding the publication of this paper. Sensors 2020, 20, 2976 ...
doi:10.3390/s20102976
pmid:32456349
fatcat:ojewcdj6pjerxccnd273nryxom
Page 77 of Journal of Spacecraft and Rockets Vol. 10, Issue 1
[page]
1973
Journal of Spacecraft and Rockets
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Gliding trajectories from high to low altitude are found to be sensitive to phugoid mode excitation, and the dynamic pressure peak which occurs prior to the terminal flight condition may be excessive. ...
Index categories: Entry Vehicle Mission Studies and Flight Mechanics; Entry Vehicle Dynamics and Control; Spacecraft Naviga- tion, Guidance and Flight-Path Control Systems.
* Group Leader. ...
Optimal Guidance for the Space Shuttle Transition
1974
Journal of Spacecraft and Rockets
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This dynamic pressure penalty provides damping of phugoid oscillations through a direct feedback of kinetic-energy rate to angle of attack. ...
., “Aerodynamic Stability and Control Characteristics of the NASA/MSC 0.006 Scale 040-A Delta Wing Orbiter,” CR-120015, Nov. 1971, NASA
* Bellman, R. and Kalaba, R., “Dynamic Programming and Adaptive Processes ...
doi:10.2514/3.62034
fatcat:qvtoem6l2nhblfhvzyi3ym67ky
Adaptive Entry Guidance for Hypersonic Gliding Vehicles Using Analytic Feedback Control
2020
International Journal of Aerospace Engineering
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This paper presents an adaptive, simple, and effective guidance approach for hypersonic entry vehicles with high lift-to-drag (L/D) ratios (e.g., hypersonic gliding vehicles). ...
glide condition (QEGC). ...
Introduction Atmosphere entry flight is a critical phase of operation for the unpowered lifting hypersonic flight vehicles such as reusable launch vehicles (RLVs) and hypersonic gliding vehicles (HGVs) ...
doi:10.1155/2020/8874251
fatcat:ftrpd7luovadzclxrsvqivu7cy
Optimal Guidance for the Space Shuttle Transition
2003
Journal of Spacecraft and Rockets
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In its ultimate form, "E-Guidance" obtains energy balance (including dynamic-pressurerate damping) and path length control by angle-of-attack modulation and crossrange control by roll angle modulation. ...
A guidance method for the space shuttle's transition from hypersonic entry to subsonic cruising flight is presented. ...
The transition phase begins in the hypersonic regime (M = 8.26, H = 150, 000 ft, y = 0 ) and ends in a subsonic trim glide (M = .9, H = 40, 000 ft, y = -18 0). ...
doi:10.2514/2.7043
fatcat:ztlnfrd3w5gv7bwaehtuhl773i
Strategies for Control of the Space Shuttle Transition
1973
Journal of Spacecraft and Rockets
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the boundary of in- stability at hypersonic M. ...
Gliding trajectories from high to low altitude are found to be sensitive to phugoid mode excitation, and the dynamic pressure peak which occurs prior to the terminal flight condition may be excessive. ...
doi:10.2514/3.61849
fatcat:gzfocnavm5hdbfbldefoku4phe
Approximate Performance of Periodic Hypersonic Cruise Trajectories for Global Reach
1998
Journal of Aircraft
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Pealiistic R skip
es: istic
bie
surface of a lake. At high speed, a lifting body or waverider class vehicle will skip in and out of the atmosphere because of lightly damped phugoid oscillation. ...
., ‘Periodic Optimal Cruise of an Atmospheric Vehicle,’’ Journal of Guidance, Control, and Dynamics, Vol. 8, No. 1, 1985, pp. 31-38.
*Chuang, C.-H., and Speyer, J. ...
doi:10.2514/2.2405
fatcat:qyk33mgmwjhkhfgpzhkv6vxdoa
Control-relevant modeling of hypersonic vehicles
2009
2009 American Control Conference
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The design of such vehicles is a very interdisciplinary and highly complex problem. ...
Scramjet powered hypersonic vehicles represent the next critical step toward achieving NASA's vision for Highly Reliable Reusable Launch Systems (HRRLS), affordable space access, planetary re-entry systems ...
Such capability has to span across all disciplines due to multidisciplinary nature of hypersonic vehicle dynamics. ...
doi:10.1109/acc.2009.5160682
dblp:conf/amcc/VogelKIWSR09
fatcat:y35wxvm2fjeyxbobkbsyrphsya
Aerodynamic requirements for flare and landing of low-L/D glide vehicles
1968
Journal of Spacecraft and Rockets
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This paper examines the flare and land- of tively ing dynamics of glide (unpowered) vehicles having subsonic ds P = phugoid period, sec L/D’s in the 1 to 8 range in order to define the effects of or 8 ...
The flare and landing performance of glide (unpowered) vehicles with low lift-to-drag ratios (L/D) is investigated analytically to determine the influence on landing characteristics of such factors as ...
doi:10.2514/3.29388
fatcat:tw72gcttrngbvanr5644u7zjii
Autonomous gliding entry guidance with geographic constraints
2015
Chinese Journal of Aeronautics
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Results show that the proposed entry guidance approach can adapt to different entry missions and is able to make the vehicle reach the prescribed target point precisely in spite of geographic constraints ...
Two-reverse mode is utilized to satisfy waypoint constraints and dynamic heading error corridor is utilized to satisfy no-fly zone constraints. ...
Acknowledgement This study was supported by National Natural Science Foundation of China (No. 11202024). ...
doi:10.1016/j.cja.2015.07.009
fatcat:mahf6q6jyjgq7l4kkpa3vo3vgm
Aerothermodynamic Environments and Thermal Protection for a Wave-Rider Second Stage
2005
Journal of Spacecraft and Rockets
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The desired reentry vehicle missions require long atmospheric glides. ...
The process, tools, and results of an analysis of the hypersonic thermal protection system design requirements for this second stage vehicle are addressed. ...
doi:10.2514/1.5728
fatcat:jtzd5ihl35gwbmjecl4mh2lyma
Dynamics of hang-gliders
1991
Journal of Guidance Control and Dynamics
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8) (—)
Fig.5 Phugoid root locus plot; effect of trim. ...
As a first step in the dynamic analysis, the stability characteristics have been shown to de- pend heavily on the trimmed flight conditions due to the variable position of the c.g. that is necessary for ...
doi:10.2514/3.20769
fatcat:nj7ihwf4qrfbpop6mdjxagj7by
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