Results 61 to 70 of about 88,093 (184)

A portable, low-cost flight-data measurement and recording system [PDF]

open access: yes
The design of and the experience with an inexpensive, hand-portable, onboard data system used to record four parameters in the final portion of the landing approach and touchdown of an airplane are described. The system utilized a high-quality audio tape
Miller, R. J.
core   +1 more source

A Structural Safety Analysis of Buildings During Construction [PDF]

open access: yes, 1981
The safety of steel buildings, constructed by the tier method, is evaluated. The probability of failure of steel frames supported on temporary connections is examined during the different stages of completion.
Ang, A.H-S., Karshenas, S.
core  

CONDOR: Long endurance high altitude vehicle, volume 5 [PDF]

open access: yes
The results of a design study resulting in the proposed CONDOR aircraft are presented. The basic requirements are for the aircraft to maintain continuous altitude at or above 45,000 feet for at least a 3-day mission, be able to comfortably support a two ...
Andrews, L. Cullen   +6 more
core   +1 more source

Advanced Low-Floor Vehicle (ALFV) Specification Research [PDF]

open access: yes, 2015
This report details the results of research on market comparison, operational cost efficiencies, and prototype tests conducted on a novel design for an Advanced Low Floor Vehicle (ALFV), flex-route transit bus. Section I describes how the need for such a
Boggs, Wanda   +6 more
core   +1 more source

The World Trade Center disaster : Analysis and recommendations [PDF]

open access: yes, 2005
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2005.Includes bibliographical references (p.
Kirk, Jeremy Abraham, 1977-
core  

Moment-Rotation Relation of Top- and Seat- Angle Connections

open access: yesMoment-Rotation Relation of Top- and Seat- Angle Connections
application/pdf In this paper, the moment-rotation relationship of the top- and seat- angle steel beam-to-column building connection is developed. In this development, the initial elastic stiffness and ultimate moment capacity of the connection are determined by a simple analytical procedure. Using the initial stiffness and the ultimate moment capacity
openaire  

Correlation of AH-1G airframe test data with a NASTRAN mathematical model [PDF]

open access: yes
Test data was provided for evaluating a mathematical vibration model of the Bell AH-1G helicopter airframe. The math model was developed and analyzed using the NASTRAN structural analysis computer program. Data from static and dynamic tests were used for
Berry, V. L., Cronkhite, J. D.
core   +1 more source

Behavior Study of Top Seat Angle Steel Beam to Column Connections [PDF]

open access: green, 2017
Kamal Ahmed Al-Fakih   +2 more
openalex  

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