Working Paper Technical Note Version 1 This version is not peer-reviewed

Structural Discontinuities in a Multibond Graph

Version 1 : Received: 22 April 2020 / Approved: 23 April 2020 / Online: 23 April 2020 (10:33:06 CEST)

How to cite: Margetts, R. Structural Discontinuities in a Multibond Graph. Preprints 2020, 2020040411 Margetts, R. Structural Discontinuities in a Multibond Graph. Preprints 2020, 2020040411

Abstract

The hybrid bond graph has been studied in depth for scalar bond graphs, but how does this translate to the multi-bond graph? Here, the controlled junction – used to model structural switching such as contact – is extended to the multi-bond case. This is a simple process, assuming that all bonds switch simultaneously (which makes physical sense). A controlled 0-junction is applied to multi-bond graph of a car, which can lose contact with the ground in cornering. Dynamic causality features, but this can be accommodated using an equational submodel in 20-Sim (in a manner similar to that used with scalar bond graphs). The junction is proposed for subsequent work to develop a validated multi-body dynamics car model in cornering.

Subject Areas

bond graph; multi bond; vector bond; hybrid; switching; multi-body; dynamics; system;model

Comments (1)

Comment 1
Received: 28 April 2020
Commenter: Rebecca Margetts
The commenter has declared there is no conflict of interests.
Comment: Please note that bond no. 3 in the scalar bond graphs in Figure 1 is incorrectly orientated. This will be corrected in version 2 of the paper. Many thanks to the collaborator who raised this.
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