Hovering Hinge-Connected Flapping Plate with Passive Deflection

نویسندگان

  • Hui Wan
  • Haibo Dong
  • George P. Huang
چکیده

Ax, A = amplitude of stroke amplitude in x direction, m, and orientation angle, deg CL, CL = lift coefficient and its average over flapping cycles CD, CD = drag coefficient and its average over flapping cycles CPW, CPW = input power coefficient and its average over flapping cycles c, h = chord and thickness of the plate, m; c is chosen as characteristic length Re = Uc v , Reynolds number, v is kinematic viscosity of fluid St = fc U , Strouhal number U = characteristic speed, m=s, based on maximum leading-edge speed , _ ,  = deflection angle, angular velocity, and angular acceleration of hinged plate s, f = density of body and fluid, respectively, kg=m 3

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Study of design parameters of flapping-wings

As one of the most important components of a flapping-wing micro air vehicle (FWMAV), the design of an energy-efficient flapping-wing has been a research interest recently. Research on insect flight from different perspectives has been carried out, mainly with regard to wing morphology, flapping kinematics, and unsteady aerodynamics. However, the link between the wing morphology and kinematics ...

متن کامل

Effect of flexural and torsional wing flexibility on lift generation in hoverfly flight.

The effect of wing flexibility in hoverflies was investigated using an at-scale mechanical model. Unlike dynamically-scaled models, an at-scale model can include all phenomena related to motion and deformation of the wing during flapping. For this purpose, an at-scale polymer wing mimicking a hoverfly was fabricated using a custom micromolding process. The wing has venation and corrugation prof...

متن کامل

Modeling and Simulation of the Fluid-Structure Interactions in Passively-Pitching Flapping Wings of Flying Microrobots

We present a study of the dynamics of passive wing-pitching in flapping-wing hovering flight, employing an integrated simulation approach. Here, the motion of a perfectly rigid wing is described using the Euler-Lagrange equation in Kane’s formulation, in which the passive rotating mechanism (flexure hinge) is modeled as a single-axis elastic beam and the total aerodynamic moment is computed by ...

متن کامل

Optimal hovering kinematics with respect to various flapping-wing shapes

Flapping-wing kinematics for insect flight has been studied for decades, especially since engineers became interested in flapping-wing micro air vehicles (FWMAVs). Previous work mainly focused on understanding kinematic patterns employed by different insects from the perspective of their trajectories and aerodynamics, and on optimization of kinematic parameters to enhance the understanding. How...

متن کامل

The Lattice Boltzmann Method for Flapping Wing Aerodynamics

The lattice Boltzmann method offers an alternative framework compared to the NavierStokes simulations. However, the applicability of this method to simulate moving boundary problems has not received sufficient attention. In this work, different treatments of the noslip condition of lattice Boltzmann method for the moving boundary problem of rigid and flexible wings flapping in a fluid have been...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2012