Long period oscillation , Other Engineering

Assignment Help:

The phugoid is a relatively low-frequency oscillation in which kinetic and potential energies are exchanged. The mode is generally characterized by low damping and approximately constant incidence: i.e. CL and CD both constant. In the following simplified analysis, it is assumed that the aircraft is initially trimmed straight-and-level at a horizontal speed V0. Lift and weight balance, as do thrust and drag.

2008_Long Period Oscillation.png

We now assume that the velocity vector is perturbed from V=(V0, 0) to V=(V0+u, w) where u and w are small (relative to V0) perturbations in the x and z directions in the inertial (i.e. non-rotating and non-accelerating) axis system oxz. Using a local tangent approximation to the quadratic dependency of lift and drag on speed, the lift and drag will increase by small increments

 


Related Discussions:- Long period oscillation

Electronics devices and circuits, With the help of circuit diagram and the ...

With the help of circuit diagram and the waveforms,explain the working of a negative clipper with positive biasing voltage.also explain the Same concept in series clipper circuit

Simulation, A system is a walk-in medical clinic; a simulation is used to d...

A system is a walk-in medical clinic; a simulation is used to determine staffing levels. Under what circumstances would it be appropriate to use a terminating simulation or a stead

Use of multicylinder engine, USE OF MULTICYLINDER ENGINE If, in a multi...

USE OF MULTICYLINDER ENGINE If, in a multi cylinder engine, power strokes are staggered, the limitation of flywheel can be overcome to a large extent. Torque diagram for 2 cyli

thermoelectric effect, Thermoelectric effect The measurement of temper...

Thermoelectric effect The measurement of temperature using a thermocouple relies on Seebeck effect. The electrons occupy different energy levels in different materials

LAVOISIER LAPLACE''S LAW, GIVE EXPLANATION HOW THIS IS USEFUL IN APPLICATIO...

GIVE EXPLANATION HOW THIS IS USEFUL IN APPLICATION OF THERMODYNAMICS TOWARDS CHEMICAL PROCESS

Isdn, Explain the meaning of numbering and addressing in ISDN network.

Explain the meaning of numbering and addressing in ISDN network.

Time-flow diagram, One approach of an intersection with fixed time traffic ...

One approach of an intersection with fixed time traffic signals, vehicles arrive at 500 veh/h on the approach. The cycle time of the intersection is 80 seconds, and the effective g

Foreign exchange market and exchange rates, what is the equation relating t...

what is the equation relating the real exchange rate to the nominal exchange rate and domestic and foreign price levels

Thermodynamics, show that heat and work are path functons

show that heat and work are path functons

Fiber optics, 1. A very narrow laser beam in air is shone into a sphere of ...

1. A very narrow laser beam in air is shone into a sphere of solid glass that has a uniform refractive index n>1 and radius ? . The beam makes an angle a in air with the normal to

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd