• No results found

aerodynamic load

Nonlinear Oscillation of FGM plates under Aerodynamic Load

Nonlinear Oscillation of FGM plates under Aerodynamic Load

... the aerodynamic load based on quasi-steady first-order piston theory to investigate the influence of flow direction on the large amplitude limit-cycle oscillation of composite ...

6

Aerodynamic Perform of Aircraft Propeller

Aerodynamic Perform of Aircraft Propeller

... The scope of the project is focused on the aerodynamic performance of aircraft propeller. Research is made to understand the aircraft propeller in general. Computational Fluid Dynamics (CFD) software is used to ...

24

Insect and insect-inspired aerodynamics: unsteadiness, structural mechanics and flight control

Insect and insect-inspired aerodynamics: unsteadiness, structural mechanics and flight control

... the aerodynamic forces they produce ...provide aerodynamic information [56], and similarly limited evidence that chordotonal organs in some insects could provide load-dependent proprioceptive ...

12

Flutter and response of composite wind turbine blade with bending torsional coupling

Flutter and response of composite wind turbine blade with bending torsional coupling

... Although stability of classical flutter has generally not been a driving issue in utility-scale design, one case in which classical flutter was observed involved a high-speed rotating blade in pitch excitation process. ...

7

Paper 06-2016-1

Paper 06-2016-1

... In the paper, CFD software package ANSYS FLUENT software code is used for obtaining aerodynamic load of the Mi-8 helicopter tail rotor blades. The tail rotor thrust primarily serves to balance the main ...

14

Effects of Unsteady Aerodynamic Pressure Load in the Thermal Environment of FGM Plates

Effects of Unsteady Aerodynamic Pressure Load in the Thermal Environment of FGM Plates

... There are some investigations of aerodynamic pressure load on the functionally graded material (FGM) p lates and shells. In 2015, Fa ze lzadeh et al. [1] studied the effects of vo lu me fraction, aspect ...

9

Active Control of Edgewise Vibrations in Wind Turbine Blades Using Stochastic Disturbance Accommodating Control

Active Control of Edgewise Vibrations in Wind Turbine Blades Using Stochastic Disturbance Accommodating Control

... unknown aerodynamic load and gravitational load,then designed a stochastic disturbance accommodating control under the measure noise ...for load mitigation or speed regulation of wind ...

25

Numerical investigation of the coupled interaction between an unsteady aerodynamic flow field and a water film coating on a circular cylinder

Numerical investigation of the coupled interaction between an unsteady aerodynamic flow field and a water film coating on a circular cylinder

... unsteady aerodynamic solver for the external aerodynamic flow field with a solver based on a thin-film model for the evolution and deformation of the water ...various aerodynamic loadings on the ...

47

Aerodynamic performance detecting for floating offshore wind turbine using RANS-BEMT approach

Aerodynamic performance detecting for floating offshore wind turbine using RANS-BEMT approach

... Numerous engineering tools rely on pre-calculated 2D force coefficients for the aerodynamic loads. Multiple approaches to achieve these coefficients have been proposed and often these coefficients are simply tuned ...

10

Wind turbine blade design

Wind turbine blade design

... the aerodynamic loads (Figure 9), which can be calculated using BEM theory (Section ...6.1). Aerodynamic loads are suggested as a critical design load during 50 year storm and extreme operational ...

25

Into thin air: contributions of aerodynamic and inertial elastic forces
to wing bending in the hawkmoth Manduca sexta

Into thin air: contributions of aerodynamic and inertial elastic forces to wing bending in the hawkmoth Manduca sexta

... is angular stroke amplitude, ω is angular frequency, L is wing span and g is earth’s gravitational acceleration. The ratio of wing to body mass in insects has been shown to vary from 0.5% in bees to 6% in hawkmoths ...

8

Aerodynamic Study On An Aircraft

Aerodynamic Study On An Aircraft

... only aerodynamic control surfaces, seen to be successful case of the high- and moderate- α trims, but leaves airplane in a wing rock-like limit cycle oscillation about the low-the o trim ...only aerodynamic ...

24

Development Of Aerodynamic Smoke Tunnel Unit For Teaching And Learning

Development Of Aerodynamic Smoke Tunnel Unit For Teaching And Learning

... and aerodynamic flow ...for aerodynamic flow visualization, all the information regarding aerodynamic, wind/smoke tunnel, CFD and any related information should be ...

24

Issues in the design of switched linear systems: a benchmark study

Issues in the design of switched linear systems: a benchmark study

... deviation of the rate of change of the pitch angle reflects the actuator activity over the medium and long term and is required to remain less than (0.4V-1.8) deg/s over the operating range of mean wind speeds up to 24 ...

29

Computer Simulation of Car Aerodynamic Properties

Computer Simulation of Car Aerodynamic Properties

... Modified three‑dimensional computer model of the car with applied the proposed solutions was subjected to simulations in the program STAR‑CCM+ under the same test conditions as the stock model of car. The calculated ...

10

Quadrotor multibody modelling by vehiclesim: adaptive technique for oscillations in a PVA control system

Quadrotor multibody modelling by vehiclesim: adaptive technique for oscillations in a PVA control system

... This nonlinear model, obtained using VehicleSim modelling, is similar to that one obtained by (Palunko and Fierro, 2011) when the position of the vehicle’s centre of gravity matches the centre of the structure and the ...

53

Aeroelastic behaviour of composite wings

Aeroelastic behaviour of composite wings

... [QA] Flutter matrix [QAm] Generalised unsteady aerodynamic matrix of the wing [QAo] Generalised unsteady aerodynamic matrix of the control surface [QA]I Imaginary part of generalised uns[r] ...

371

The energetic cost of variations in wing span and wing asymmetry in the
zebra finch Taeniopygia guttata

The energetic cost of variations in wing span and wing asymmetry in the zebra finch Taeniopygia guttata

... Two aerodynamic models were used to predict the effect that the change in wingspan would have on flight cost; the Pennycuick (1989) model, which is a simplistic model using wing span, area and body mass to predict ...

8

Design and CFD Analysis of Aerodynamic of a Car with Various Aerodynamic Devices
Udayagiri Lingaiah, B Venkat Narayana & Ch  Ashok

Design and CFD Analysis of Aerodynamic of a Car with Various Aerodynamic Devices Udayagiri Lingaiah, B Venkat Narayana & Ch Ashok

... automotive aerodynamic device whose intended design function is to 'spoil' unfavorable air movement across a body of a vehicle in motion, usually described as turbulence or ...reduces aerodynamic lift and ...

8

A Method for the Solution of the 2D Oswatitsch Equations

A Method for the Solution of the 2D Oswatitsch Equations

... Considering the graphs with γ = const. in Figure 5(a) to Figure 5(d), the largest gradient is in the region of 3.5 Ma < ∞ < 10 . For higher Mach numbers the aerodynamic coefficients do not change more than ...

13

Show all 10000 documents...

Related subjects