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

Vibrating beam accelerometer, Vibrating beam accelerometer The electrod...

Vibrating beam accelerometer The electrodes are driven by a high frequency voltage (1 MHz). The displacement is measured using a phase detector from the change of capacitance b

Design structure matrix, what are the types of interactions in the design s...

what are the types of interactions in the design structure matrix?

Aeroengines - cfd, Essentially, the strategy of CFD is to replace the conti...

Essentially, the strategy of CFD is to replace the continuous problem domain with a discrete domain using a grid domain with a discrete domain using a grid. In a continuous doma

Dsp, h(t) is an analog IIR filter, with the poles lambda_1 = -1, lambda_2 =...

h(t) is an analog IIR filter, with the poles lambda_1 = -1, lambda_2 = -1+i, lambda_3 = -1-i and no zeros. let h[n] be a digital IIR filter with poles which defined by e^lambda_i a

Civil construction, what a problem when we do a construction project

what a problem when we do a construction project

Define the term technology, Question 1 Define the term technology. Write a...

Question 1 Define the term technology. Write a effective short note on evolution and growth of technology Question 2 Citing an example, state and explain the reasons that com

Casting methods, Special Casting Methods             1. Die casting : ...

Special Casting Methods             1. Die casting : Die casting is a permanent mould casting techniques in which molten metal is forced in the mould cavity under a pressure

Architecture.., draw folded plate roof structure on multi purpose hall?

draw folded plate roof structure on multi purpose hall?

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