A Study of Analytic Modeling Techniques for Landing Gear Dynamics.

1982 ◽  
Author(s):  
Stephen M. Batill
Keyword(s):  
Landing Gear ◽  
Analytic Modeling ◽  
Gear Dynamics ◽  
Modeling Techniques

scholarly journals Uncertainty and Sensitivity Analysis of Bifurcation Loci Characterizing Nonlinear Landing-Gear Dynamics

2018 ◽  
Vol 55 (1) ◽  
pp. 162-172 ◽  
Author(s):  
I. Tartaruga ◽  
J. E. Cooper ◽  
M. H. Lowenberg ◽  
P. Sartor ◽  
Y. Lemmens
Keyword(s):  
Sensitivity Analysis ◽  
Landing Gear ◽  
Gear Dynamics ◽  
Uncertainty And Sensitivity Analysis

Topics in landing gear dynamics research at NASA Langley

1988 ◽  
Vol 25 (1) ◽  
pp. 84-93
Author(s):  
Harvey G. McComb ◽  
John A. Tanner
Keyword(s):  
Landing Gear ◽  
Gear Dynamics

Comparison of Modeling Techniques for a Landing Gear

2010 ◽  
Author(s):  
Rebecca Margetts ◽  
Roger F. Ngwompo
Keyword(s):  
Block Diagram ◽  
Differential Algebraic Equations ◽  
Landing Gear ◽  
Algebraic Equations ◽  
Bond Graphs ◽  
Aircraft Landing ◽  
Aircraft Landing Gear ◽  
Wide Range ◽  
Modeling Techniques ◽  
Computational Errors

A wide range of modeling techniques is available to the engineer. The objective of this paper is to compare some typical modeling techniques for the simulation of a multi-domain mechatronic system. Usual dynamic modeling methods, such as block diagrams and iconic diagrams, can cause problems for the engineer. Differential algebraic equations (DAEs) and algebraic loops can significantly increase simulation times and cause numeric errors. Bond graphs are less common in industry, and are presented here as a method which allows the engineer to easily identify causal loops and elements in differential causality. These can indicate DAEs in the underlying equations. An aircraft landing gear is given as an example of a multi-domain system, and is modeled as a block diagram, an iconic diagram and as a bond graph. The time to construct the model, time to solve and problems faced by the analyst are presented. Bond graphs offer distinct advantages in terms of the ease of implementing algebraic equations and visibility of causality. The time taken to model a system can be significantly reduced and the results appear free from computational errors. Bond graphs are therefore recommended for this type of multi-domain systems analysis.

scholarly journals Overview of Landing Gear Dynamics

2001 ◽  
Vol 38 (1) ◽  
pp. 130-137 ◽  
Author(s):  
Jocelyn Pritchard
Keyword(s):  
Landing Gear ◽  
Gear Dynamics
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