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Full-Text Articles in Aerospace Engineering
Quasi-Static Structural Analysis Of An Experimental Aircraft Wing, Scott Bender
Quasi-Static Structural Analysis Of An Experimental Aircraft Wing, Scott Bender
Doctoral Dissertations and Master's Theses
In this report, a quasi-static load analysis is conducted on an experimental light sport aircraft wing via a whiffletree bending test. This report will discuss the loads present on the aircraft during straight level flight at a speed of 82 knots equivalent air speed. Flight load calculations are described along with the design of the whiffletree and mounting structures utilized for applying the distributed point loads. Initial finite element analysis is performed on the wing structure to determine critical strain locations and optimal sensor distribution. Subsequent mechanical experimentations are performed using a bending test to measure the strain at critical …
Determination Of Aerodynamic Forces And Control Requirement During Ground Effect, Ambuj Srivastava
Determination Of Aerodynamic Forces And Control Requirement During Ground Effect, Ambuj Srivastava
International Journal of Aviation, Aeronautics, and Aerospace
The current work delivers the effect of ground proximity on longitudinal aerodynamic forces and the elevator deflection required for trimming the aircraft. The academic understanding states that the with the increasing proximity to the ground,downwash progressively reduces.The methodology adopts the approximation of linear decrement for the estimation of the residual downwash at any height above ground within the unit wingspan. The proposed method utilizes non-dimensional height above ground for the approximation of effective downwash angle in the presence of ground. The approximately predicted effective downwash angle is subsequently utilized to estimate the effect of ground proximity on longitudinal forces, trim …
Competitiveness Of Hybrid Electric Aircraft On Short Range Scheduled Flights, Johannes Anton, Hans-Joachim K. Ruff-Stahl
Competitiveness Of Hybrid Electric Aircraft On Short Range Scheduled Flights, Johannes Anton, Hans-Joachim K. Ruff-Stahl
International Journal of Aviation, Aeronautics, and Aerospace
Hybrid electric aircraft are expected to enter the small regional aircraft market within the next two decades. The aim of this study was to investigate if a hybrid electric passenger aircraft with 50 seats can be competitive against the established 100 seat aircraft on short range scheduled flights. The Embraer EMB 145 and EMB 190 regional jets were chosen as benchmarks for that market. A hypothetical hybrid version of the EMB 145 with increased fuel efficiency was tested on a cost per available seat mile (CASM) basis. The t tests confirmed significant (p < 0.05) competitiveness of the hybrid version, while in contrast the conventional 50-seater was significantly more expensive compared to the 100seat aircraft. This indicates that hybrid aircraft could enter the short haul market with a competitive advantage, even against the established 100 seat regional jets.
Six Degrees Of Freedom From Six Degrees Of Separation: The History Of Flight Simulators, David Keck, Morgan Lopez
Six Degrees Of Freedom From Six Degrees Of Separation: The History Of Flight Simulators, David Keck, Morgan Lopez
Publications
Some of today's advanced flight simulators have the capacity to provide pilots with experiences of six degrees of freedom: forward/backward, up/down, or left/right (or pitching, rolling, or yawing in either direction). These incredible devices are the product of over 100 years of design developments that come from a series of technological discoveries and historical events.