Results 81 to 90 of about 15,056 (227)

Remote control of an impact demonstration vehicle [PDF]

, 1984
Uplink and downlink telemetry systems were installed in a Boeing 720 aircraft that was remotely flown from Rogers Dry Lake at Edwards Air Force Base and impacted into a designated crash site on the lake bed.
Craft, J. B., Jr., Harney, P. F., Johnson, R. G.   +2 more
core   +1 more source

Thin-Walled Compliant Mechanism Component Design Assisted by Machine Learning and Multiple Surrogates [PDF]

, 2015
This work introduces a new design algorithm to optimize progressively folding thin-walled structures and in order to improve automotive crashworthiness. The proposed design algorithm is composed of three stages: conceptual thickness distribution, design ...
Detwiler, Duane, Liu, Kai, Nutwell, Emily, Tovar, Andres   +3 more
core   +1 more source

Experimental and numerical study on axial crushing behaviour of pultruded composite tubes [PDF]

, 2008
An extensive experimental investigation was carried out to study the energy absorbing characteristics and progressive deformation behavior of unidirectional pultruded composite tubes subjected to an axial impact load.
De Wolf, Kathleen, Degrieck, Joris, Kakogiannis, Dimitrios, Palanivelu, Sivakumar, Van Hemelrijck, Danny, Van Paepegem, Wim, Vantomme, John, Verhelst, Rudy, Wastiels, Jan   +8 more
core   +1 more source

Design of the crashworthy structure of an urban aircraft

MATEC Web of Conferences, 2017
With the development of general aviation, the urban aircraft is around the corner. The urban aircraft with composite is considered as an ultralight vehicle and the crashworthiness is of vital importance for such an ultralight aircraft.
Shang Bairong, He Jingwu, Xiong Yuexi, Hu Zhe   +3 more
doaj   +1 more source

Structural response of transport airplanes in crash situations [PDF]

This report highlights the results of contractural studies of transport accident data undertaken in a joint research program sponsored by the FAA and NASA.
Caiafa, C., Thomson, R. G.
core   +1 more source

Exploiting Query Structure and Document Structure to Improve Document Retrieval Effectiveness [PDF]

, 2006
In this paper we present a systematic analysis of document retrieval using unstructured and structured queries within the score region algebra (SRA) structured retrieval framework.
Apers, P.M.G., Blok, H.E., Hiemstra, D., Mihajlovic, V.   +3 more
core   +2 more sources

Multi-Objective Optimization of Crashworthiness of Shrink Tube Energy Absorption Structure

Applied Sciences
By means of material testing, truck testing and numerical simulation, the structural parameters of the shrink tube anti-climb device for high-speed trains were determined.
Fan Zou, Shuguang Yao
doaj   +1 more source

Transient analysis techniques in performing impact and crash dynamic studies [PDF]

Because of the emphasis being placed on crashworthiness as a design requirement, increasing demands are being made by various organizations to analyze a wide range of complex structures that must perform safely when subjected to severe impact loads, such
Pifko, A. B., Winter, R.
core   +1 more source

General aviation technology program [PDF]

The research and technology program of the civil air transportation system is reported. Research is discussed for stall/spin, crashworthiness, pilot operations, flight efficiency, propulsion, and ...

core   +1 more source

Numerical Impact Assessment Based on Experiments for Steel Stiffened Panels with and Without Prior Dent

Journal of Marine Science and Engineering
Many ship panels may be subjected to operational or accidental impact loads, and increased crashworthiness is a desirable design feature. A designer may reach this goal using different structural configurations that are available nowadays.
Sara A. Eltawosy, Heba S. El-Kilani, Elsayed Fathallah, S. Saad-Eldeen   +3 more
doaj   +1 more source