نتایج جستجو برای: camber
تعداد نتایج: 430 فیلتر نتایج به سال:
We studied the effects of wing deformation on the aerodynamic forces of wings of hovering hoverflies by solving the Navier-Stokes equations on a dynamically deforming grid, employing the recently measured wing deformation data of hoverflies in free-flight. Three hoverflies were considered. By taking out the camber deformation and the spanwise twist deformation one by one and by comparing the re...
After a road accident, slide marks are sometimes seen to exhibit a slight curvature, which is often due to road camber. The lateral deviation from that cause is shown to be the length of the slide multiplied by the lateral gradient and divided by twice the friction coefficient.
Conventional aircraft use discrete flight control surfaces to maneuver during flight. The gaps and discontinuities of these generate drag, which degrades aerodynamic power efficiencies. Morphing technology aims replace conventional wings with advanced that can change their shape the minimum possible induced drag. This paper presents MataMorph-3, a fully morphing unmanned aerial vehicle (UAV) ca...
-The sidewall is one of the regions where service failures occur in a pneumatic tire. Knowledge of the stresses or strains developed in the sidewall under varying service conditions is required if such pneumatic-tire failures are to be avoided. This paper describes an experimental investigation into the effect of inflation pressure, vehicle load and camber angle on the sidewall-surface strains ...
Timber–concrete composites (TCC) are smart solutions for slabs in residential and office buildings regarding the sustainable performance-optimized use of materials. However, a non-negligible disadvantage is deflection timber elements caused by in-situ concrete casting during construction. This paper presents an approach to camber without external forces using innate swelling capacity wood. Oven...
final step of rail manufacturing is cold rolling straightening process and it hassignificant effects on mechanical properties, straightness, flatness and development of residualstresses. measurement of residual stresses after straightening process is obligated by railmanufacturing standards. in the present investigation, an attempt has been made to evaluateresidual stresses after straightening ...
This paper discusses several technologies currently being investigated for use on low speed UAVs. This includes adaptive wing technology that controls separation via active changes in the camber, use of large scale surface roughness to control separation, plasma actuators to control stall and enhance lift, and inflatable wings that can be tailored using wing warping. Results from wind tunnel an...
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