Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 116 for “"flight test"”.
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Low-Cost Flight Test Telemetry Systems
<p>A traditional Flight Test Telemetry system is based on a peer-to-peer architecture where a system of antennae enables a signal to be transmitted between an aircraft and a receiving ground station. Said system generally requires costly infrastructures on the ground and complex antennae components …
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Dynamic Pressure Sensing for the Flight Test Data System
… thesis describes the design, assembly, and test of the FTDS-K, a new device in the Boundary Layer Data System (BLDS) family of flight data acquisition systems. The FTDS-K provides high-frequency, high-gain data acquisition capability for up to two pressure sensors and an additional three …
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The extraction of lateral aerodynamic coefficients from flight-test data
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautical Engineering, 1957.
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Development of UAV flight test demonstrator for cyclotronic arc-plasma actuator
… ability of being enabled or disabled for flight regimes such as takeoff and landing. As disabling these actuators during cruise can reduce or eliminate drag penalties, these devices could be used as alternatives to passive vortex generators, which cannot be disabled in flight. This thesis …
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Design of a Scaled Flight Test Vehicle Including Linear Aeroelastic Effects
… aeroelastic damping and frequency for a range of flight velocities, but some discrepancy remains in accurately capturing the flutter velocity.
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Design, Development, and Testing of Research Payloads on Various Suborbital Flight-Test Platforms
… by detailing the design, development, and testing techniques followed in the successful launch and recovery of payload experiments in currently active and upcoming suborbital launch vehicles. The research methodology involves collecting payload requirements, CAD design, computational …
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Design and Evaluation of Geometric Nonlinearities using Joined-Wing SensorCraft Flight Test Article
… aft wing buckling. The design, construction, and flight testing of a 1/9th scale, aeroelastically tuned model of the Joined-Wing SensorCraft has been the subject of an ongoing international collaboration aimed at experimentally demonstrating the nonlinear aeroelastic response in flight. To …
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Flight test of a supersonic decelerator on Earth to simulate a Mars entry
… through the atmosphere of the planet Mars by a flight test in the Earth's atmosphere. Engineering atmosphere models for Mars are defined and based on these models requirements for parachutes to be used for Mars entry are developed. Appropriate parachute model and scaling laws for Earth …
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Validation and Uncertainty Quantification of Doublet Lattice Flight Loads using Flight Test Data
… validating, and quantifying uncertainties for flight loads. The flight loads are computed using a Nastran doublet lattice model and are validated using measured data from a flight loads survey for a Cessna Model 525B business jet equipped with Tamarack® Aerospace Group’s active winglet …
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Design and Construction of a 1/3-Scale, 1986 Cessna 172P Flight-Test Aircraft
<p>The incredible cost of prototype flight testing can be a very limiting factor in the optimization of new designs as they proceed from the drawing board to the flight line. The use of low-cost scaled models to predict full-scale prototype performance is the focus of this project. It will be shown …
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Systems Theoretic Process Analysis as a Practical Tool for Comprehensive Flight Test Hazard Identification
Flight test is an endeavor inherently imbued with risk. In order to conduct flight testing safely, hazards of consequence must be identified and mitigated in advance of testing. While adequate practices are widely in place for the mitigation of hazards that have been identified, the practices …
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Correction of pseudo-attitude information and partial panel flight test in general aviation aircraft
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2002.
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Identification of Unsteady Flight Dynamic Models and Model-based Wind Estimation with Flight Test Validation
… a drone's operational measurements with a flight dynamic model can be used to infer wind without a dedicated wind sensor, although the sensor quality affects measurement accuracy. Previous studies have explored the effects of various sensors on wind estimate accuracy, but the effect of …
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Development and Implementation of a Flight Test Program for a Geometrically Scaled Joined Wing SensorCraft Remotely Piloted Vehicle
The development and implementation of a flight test program for an unmanned aircraft is a multidisciplinary challenge. This thesis presents the development and implementation of a rigorous test program for the flight test of a Geometrically Scaled Joined Wing SensorCraft Remotely Piloted Vehicle …
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Characterization and Helicopter Flight Test of 3-D Imaging Flash LIDAR Technology for Safe, Autonomous, and Precise Planetary Landing
… industry and NASA, are lab characterized and flight tested under the Autonomous Landing and Hazard Avoidance (ALHAT) project (in its fourth development and field test cycle) which is seeking to develop a guidance, navigation, and control (GNC) and sensing system based on lidar technology …
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Neural Network Models for Generating Synthetic Flight Data
<p>Flight test data is a valuable resource used in many aerospace applications. However, procuring a sufficiently large database of flight test data poses several challenges. Nominal flight tests can be expensive and time-consuming and require much post-processing depending on the availability of …
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Evaluation and Flight Assessment of a Scale Glider
<p>The objective of this project is to do a flight assessment of a Phoenix K8B radio controlled glider to see what process is needed to verify its glide slope and stability characteristics. The flight test analysis, plus a computational fluid dynamics analysis, and an industry-like component …
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Advances in Aero-Propulsive Modeling for Fixed-Wing and eVTOL Aircraft Using Experimental Data
… accurate mathematical model development for flight dynamics simulations based on wind-tunnel and flight-test data. The first part of the dissertation focuses on advances in flight-test system identification methods using small, fixed-wing, remotely-piloted, electric, propeller-driven …
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Aerodynamic Modeling in Nonlinear Regions, including Stall Spins, for Fixed-Wing Unmanned Aircraft from Experimental Flight Data
… to create high-fidelity aerodynamic models with flight test techniques developed specifically for remotely piloted aircraft. Then, highly maneuverable unmanned aircraft can be employed to their greatest potential in a safe manner using advanced control laws. In this dissertation, novel techniques …
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System Identification of a Nonlinear Flight Dynamics Model for a Small, Fixed-Wing UAV
… thesis describes the development of a nonlinear flight dynamics model for a small, fixed-wing unmanned aerial vehicle (UAV). Models developed for UAVs can be used for many applications including risk analysis, controls system design and flight simulators. Several challenges exist for system …
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