A Galerkin Approach to Define Measured Terrain Surfaces with Analytic Basis Vectors to Produce a Compact Representation

摘要: Abstract : The concept of simulation-based engineering has been embraced by virtually every research and industry sector (Sinha, Liang et al. 2001; Mocko Fenves 2003). Engineering science communities have become increasingly aware that computer simulation is an indispensable tool for resolving a multitude scientific technological problems. It clearly desirable to gain reliable perspective on the behaviour system early in design stage, long before building costly prototypes (Chul Ro 2002; Letherwood, Gunter 2004; Makarand Datar 2007; Ersal, Fathy 2008; Mueller, Ferris 2009). Simulation tools critical part automotive due their ability reduce time money spent development process. Terrain principle source vertical excitation vehicle must be accurately represented order correctly predict response simulation. In this dissertation, non-deformable terrain surfaces are defined as sequence vectors where each vector comprises heights at locations oriented perpendicular direction travel. evolution implications surface measurement techniques existing methods correcting INS drift reviewed framework new compensation method measurements. Each considered combination true error Hilbert space, which decomposed into (global error) noise (local error). also develop compact, path-specific representation exploits inherent anisotropicity over vehicles traverse.