Results 61 to 70 of about 3,688,567 (142)

Revisiting the flight dynamics of take-off of a butterfly: experiments and CFD simulations for a cabbage white butterfly. [PDF]

Biol Open, 2022
Suzuki K, Nakamura M, Kouji M, Yoshino M.   +3 more
europepmc   +1 more source

Model and Dynamic Analysis of a Three-Body Tethered Satellite System in Three Dimensions

Applied Sciences
The three-body tethered satellite system is a new potential technology for the purposes of orbital transportation. In contrast to conventional orbit transfer methods, this system is expected to transport space supplies to a predetermined orbital altitude
Teng He, ZhanXia Zhu
doaj   +1 more source

Star Trackers Evaluation by Statistical Analysis [PDF]

فناوری در مهندسی هوافضا
A comprehensive statistical analysis and comparison on the characteristics of star trackers used in the world can provide valuable information to researchers, manufacturers and customers in this field.
Mohammad Sajjad Mahdiyari, Mehran Nosratollahi, Reza Zardashti   +2 more
doaj   +1 more source

Nonlinear numerical flight dynamics for the prediction of maneuver loads [PDF]

, 2011
Dynamic analysis of flexible aircraft typically involves the separation of rigid body and structural dynamics. This approach is justified, if an adequate distance between the frequencies of the elastic and the flight mechanic modes is present.
Ritter, Markus, Dillinger, Johannes
core  

Neural Network and Hybrid Methods in Aircraft Modeling, Identification, and Control Problems

Aerospace
Motion control of modern and advanced aircraft has to be provided under conditions of incomplete and inaccurate knowledge of their parameters and characteristics, possible flight modes, and environmental influences.
Gaurav Dhiman, Andrew Yu. Tiumentsev, Yury V. Tiumentsev   +2 more
doaj   +1 more source

Air Force Flight Dynamics Laboratory (U.S.). Technical Report AFFDL TR 73-19 Volume II, Part I

, 1973
Report presenting methods for predicting the performance determining aerodynamic characteristics and the stability derivatives of transport-type configurations employing the vectored-thrust mechanical-flap high-lift concept.
Letsinger, Gary R., Runciman, William J., Ray, Bernard F., May, Fred W.   +3 more
core  

Examining the Accuracy of Differenced One-Way Doppler Orbit Determination Derived from Range-Only Relay Satellite Tracking

Aerospace
This paper delves into the impact of the Tracking and Data Relay Satellite (TDRS) constellation orbit accuracy on Differenced One-Way Doppler (DOWD)-based user spacecraft orbit determination, specifically when the TDRS orbit is derived solely from ...
Ashok Kumar Verma
doaj   +1 more source

Air Force Flight Dynamics Laboratory (U.S.) Technical Report 73-19 Volume III

, 1973
Report proposing and discussing rules for determining takeoff and landing distances of STOL transport airplanes equipped with powered-lift systems.
Van Heyningen, Vernon F., Davenport, Franklin J., Rengstorff, Arnold E.   +2 more
core  

Air Force Flight Dynamics Laboratory (U.S.) Technical Report 73-19 Volume VI

, 1973
Report describing analyses and design studies that have been conducted to determine the characteristics of an Air Cushion Landing System (ACLS) as it would be applied to an Advanced Medium STOL Transport (AMST) equipped with mechanical flaps and a ...
Gardner, Lloyd H., Milns, Peter, Pizzichemi, Charles J.   +2 more
core  

Air Force Flight Dynamics Laboratory (U.S.). Technical Report 73-19 Volume I

, 1973
Report defining a configuration for an Advanced Medium short takeoff and landing (STOL) Transport (AMST) using vectored thrust for powered lift. Capability to operate from an austere forward airfield of 2000 feet length at the midpoint of 500 nm radius ...
Jants, John W., Carroll, Richard H., Milns, Peter   +2 more
core