Results 121 to 130 of about 29,604 (229)

Survey of Army/NASA rotorcraft aeroelastic stability research [PDF]

open access: yes
Theoretical and experimental developments in the aeroelastic and aeromechanical stability of helicopters and tilt-rotor aircraft are addressed. Included are the underlying nonlinear structural mechanics of slender rotating beams, necessary for accurate ...
Hodges, Dewey H.   +3 more
core   +1 more source

Vibration and flutter analysis of the SR-7L large-scale propfan [PDF]

open access: yes
A structural and aeroelastic analysis of the SR-7L advanced turboprop is presented. Analyses were conducted for several cases at different blade pitch angles, blade support conditions, rotational speeds, free-stream Mach numbers, and number of blades.
August, Richard
core   +1 more source

“Risaletü’ l- kaza ve’ l- kader” ve İbn Sina’ da kaza- kader anlayışı [PDF]

open access: yes, 2001
ÖZETİbn Sina (Avicenna) İslâm filozoflarının en meşhur ve en etkili olanlarındandır. O kaza ve kaderle ilgili bir risâle yazmıştır. Bu risâlede o, kaza'yı Tanrı'nın değişmeyen ezelî hükmü, kaderi ise, ezelî âlemde belirlenmiş şeylerin sebepler dahilinde varlık âlemine gelmesi olarak kabul eder. Sudur teorisine göre varlık Tanrı'dan zorunlu olarak taşar
openaire  

Evaluation of MOSTAS computer code for predicting dynamic loads in two bladed wind turbines [PDF]

open access: yes
Calculated dynamic blade loads were compared with measured loads over a range of yaw stiffnesses of the DOE/NASA Mod-O wind turbine to evaluate the performance of two versions of the MOSTAS computer code.
Janetzke, D. C.   +2 more
core   +1 more source

Using qualitative risk assessment to re-evaluate the veterinary fence paradigm within the Kavango Zambezi Transfrontier Conservation Area. [PDF]

open access: yesFront Vet Sci
Rosen LE   +10 more
europepmc   +1 more source

The predicted effect of aerodynamic detuning on coupled bending-torsion unstalled supersonic flutter [PDF]

open access: yes
A mathematical model is developed to predict the enhanced coupled bending-torsion unstalled supersonic flutter stability due to alternate circumferential spacing aerodynamic detuning of a turbomachine rotor.
Fleeter, S., Hoyniak, D.
core   +1 more source

An evaluation of approaches to imaging for the pre-surgical assessment of intraocular foreign body size. [PDF]

open access: yesBr J Ophthalmol
Wanniarachchi K   +5 more
europepmc   +1 more source

Redo sternotomy in donation after circulatory determination of death and donation after brain death lung donors. [PDF]

open access: yesJTCVS Open
Spinetta LE   +7 more
europepmc   +1 more source

Experimental investigation of propfan aeroelastic response in off-axis flow with mistuning [PDF]

open access: yes
Measured vibratory strain amplitudes from off-axis flow are compared for the blades of two, 8-bladed propfan model rotors with mistuning. One rotor had inherent mistuning.
Mehmed, Oral, Murthy, Durbha V.
core   +1 more source

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