scholarly journals Passive Gust Loads Alleviation in a Truss-Braced Wing Using an Inerter-Based Device

2019 ◽  
Vol 56 (6) ◽  
pp. 2260-2271 ◽  
Author(s):  
Christopher P. Szczyglowski ◽  
Simon A. Neild ◽  
Branislav Titurus ◽  
Jason Z. Jiang ◽  
Etienne Coetzee
Keyword(s):  
Gust Loads

Nonlinear response of airfoil section with control surface freeplay to gust loads

AIAA Journal ◽  
2000 ◽  
Vol 38 ◽  
pp. 1543-1557 ◽  
Author(s):  
Deman Tang ◽  
Denis Kholodar ◽  
Earl H. Dowell
Keyword(s):  
Nonlinear Response ◽  
Control Surface ◽  
Airfoil Section ◽  
Gust Loads

Derivation of Forcing Functions for Monte Carlo Atmospheric Gust Loads Analysis

1999 ◽  
Author(s):  
B. H. Sako ◽  
M. C. Kim ◽  
A. M. Kabe ◽  
W. K. Yeung
Keyword(s):  
Monte Carlo ◽  
Forcing Functions ◽  
Loads Analysis ◽  
Gust Loads

Preliminary aeroelastic design of composite wings subjected to critical gust loads

2019 ◽  
Vol 85 ◽  
pp. 96-112 ◽  
Author(s):  
D. Rajpal ◽  
E. Gillebaart ◽  
R. De Breuker
Keyword(s):  
Aeroelastic Design ◽  
Gust Loads

scholarly journals Impact of Gust and Tectonic Drags on Irregular High Rise Structures

2020 ◽  
Vol 9 (9) ◽  
pp. 427-439
Keyword(s):  
Urban Infrastructure ◽  
High Rise ◽  
Aspect Ratios ◽  
Irregular Structures ◽  
Dynamic Forces ◽  
Gust Loads ◽  
Irregular Buildings ◽  
Structural Failures ◽  
The Impact ◽  
Base Width

As the population is growing and land becomes limited and new materials and construction technologies are built together, structural structures of this nature are growing larger and smaller, which are prone to two types of dynamic forces, tectonic drags and wind powers. In developing countries like India the exponential growth of the urban population has prompted a reassessment of the value of high – rise irregular buildings. For the construction of high - rise irregular buildings, the impact of gust loads is to be remembered. In India, gust caused numerous structural failures. IS 875:2015 Part-3 considers the gust loads on various kinds of irregular structures and IS 1893 (Part-1):2016 recognizes tectonic drags. The study focuses on peculiar constructions of different aspect ratios i.e. the impact of tears and tectonic drags. H / B ratio, with H being the overall construction system height; and B being the base width of the structure frame using STADD , Structure mass irregularities using E-TABS; from this paper we are examining the impact of wind (gusts), seismic (tectonical) load on building height by changing the number of floors with a the aspect rate. H / B ratio Many researchers design a system that is immune to tectonic drags, but the tectonic drag framework can not be built without causing damage. A large proportion of existing urban infrastructure is composed of vertical irregular structures.

Energy harvesting from aeroelastic vibrations induced by discrete gust loads

2016 ◽  
Vol 28 (1) ◽  
pp. 47-62 ◽  
Author(s):  
Claudia Bruni ◽  
James Gibert ◽  
Giacomo Frulla ◽  
Enrico Cestino ◽  
Pier Marzocca
Keyword(s):  
Degrees Of Freedom ◽  
Equations Of Motion ◽  
Flow Region ◽  
Rotational Displacement ◽  
Reduced Order ◽  
Piezoelectric Elements ◽  
Out Of Plane ◽  
Gust Loads ◽  
Three Degree Of Freedom ◽  
Euler Bernoulli Beam

This article evaluates the amount of energy that can be extracted from a gust using an aeroelastic energy harvester composed of a flexible wing with attached piezoelectric elements. The harvester operates in a subcritical flow region. It is modeled as a linear Euler–Bernoulli beam sandwiched between two piezoceramics. The extended Hamilton’s principle is used to derive the harvester’s equations of motion and an eigenfunction expansion is used to form a three-degree-of-freedom reduced-order model. The degrees of freedom retained in the model are two flexural degrees for the in-plane and out-of-plane displacements, and a torsional degree for the rotational displacement. Wagner and Küssner functions are used to represent the unsteady aerodynamic and gust loading, respectively. The amount of energy extracted from the system is then compared for two different deterministic gust profiles, 1-COSINE and two sharp-edged gusts forming a square gust, for various magnitudes and durations. The results show that the harvester is able to extract more energy from the square gust profile, although for both profiles the harvester extracts more power after the gust has subsided.

Efficient Determination of Worst-Case Gust Loads Using System Norms

2017 ◽  
Vol 54 (3) ◽  
pp. 1205-1210 ◽  
Author(s):  
Andreas Knoblach ◽  
Gertjan Looye
Keyword(s):  
Worst Case ◽  
Gust Loads

Measurement of Gust Loads in Aircraft

1953 ◽  
Vol 57 (506) ◽  
pp. 78-88 ◽  
Author(s):  
J. Taylor
Keyword(s):  
Fatigue Properties ◽  
General Study ◽  
Structural Fatigue ◽  
Gust Loads ◽  
Vibration Loads ◽  
Made In

Fatigue of aircraft parts due to small but numerous vibrations has been known about for some time, but in 1944–5 cases of structural fatigue were found which were thought to have been caused by loads greater, but less frequent, than the usual vibration loads. Such loads could be ground loads due to taxi-ing, take-off and landing or they could be air loads caused by gusts and manœuvres.A general study of the fatigue properties of typical structures was made in the laboratory and it became apparent that the loads likely to do the most damage were those occurring about a million times in the life of the aircraft.

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