Adjusting Vehicle Data

SiWIMD provides a set of tools to fine-tune the results:

	to facilitate generation and adjustments of classification tables,
	to adjust axle loads and spacings (improved in Version 3.6),
	to automatically optimise results based on measured strain signals (new in Version 3.6).

Generation and adjustments of classification tables

Classification module identifies, generates, adjusts or removes individual vehicle subclasses, defined by their axle spacings. It also specifies gross vehicle load limits of vehicle subclasses which are used in calculation of overloading.

Adjustment of axle loads and spacings

Due to different reasons calculated axle loads and spacings may not represent the real measured vehicles. Changes are mainly done based on the measured strain signals. SiWIM-D provides tools for:

	adding or removing axles,
	adjusting individual axle spacings and loads by dragging the mouse; in the Expanded view the result of the changed vehicle is immediately displayed by a purple line.

Dragging axle load to the new value and immediate display of the changed vehicle response

Optimisation of results

When axles are added or removed or axle loads or spacings are changed, the measured (blue) and the calculated responses (red) of the bridge due to the vehicle do not match (i.e. the results are not correct). SiWIM-D provides tools to automatically update axle loads to best match the measured signal based on specified axle spacings.

Running optimiser to best fit calculated to the measured results

Optimised result

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For problems or questions regarding this web contact [ales.znidaric@zag.si].
Last updated: 28-04-2005.