Analysis of the two-chamber shock-absorption system of landing gear based on hybrid methodology

Abstract

The paper analyzes complex engineering systemliquid-gas shock-absorption system of landing gear. The system has a combined discrete-continuous behavior. Such systems are called hybrid systems. Simulation is performed in order to improve the control law and minimize the overload effect when landing on the airframe. The analysis is carried out by computer simulation with the use of specialized tools.

Parametric Modeling as a Technology of Rapid Prototyping in Light Industry

“…Analyzing the models of a particular class their comparison gets more efficient in terms of peculiarities of this class models. [4,7], that describes the model form on the whole and it is calculated not in view of random points on the surface of mannequin, but according to the points of sections h i . In this case it is not difficult to choose points on the surfaces of compared models.…”

“…The parameterization of a human body is usually based on anthropometric or medical information: anthropometrical points [2], parameters of clothing industry [4], points of acupuncture [8], of spinal curvature [3] As a girth we see a perimeter of a minimal convex hull of additional section points. is calculated according to Graham algorithm.…”

“…The parameterization of a human body is usually based on anthropometric or medical information: rical points [2], parameters of clothing industry [4], points of acupuncture [8], ] and so on. The results of anthropometric research and standards of clothing try are referred to in paper [2], according to these data the main parameters of human body are height, chest, girth of hips and waist.…”

“…This approach demands for the development of methods and ways of getting information on the form of the object under modeling. Therefore, the problem of complex object parameterization is an urgent one and needs to be solved by generating new models on the ground of semantic information and evaluation of modeling quality [4,5].…”