Building and validating a motorcycle finite-element model against the static fall scenario

Abstract

Introduction (problem statement and relevance). Creation of a domestic procedure to assess motorcycle safety requires use of validated finite-element models (FEM), which allows partial replacement of expensive physical tests with virtual ones. One of the stages of such model creation is its verification against experimental data of static fall.

The purpose of the study is to develop and validate a motorcycle finite-element model against the static fall scenario to further use such model in safety studies, including crash test simulations.

Methodology and research methods. The motorcycle simulation model was calculated in the LS-DYNA software program. The validation was performed based on experimental data obtained during motorcycle fall from a vertical position with recording of accelerations in three reference points. To expedite the calculations, the fall scenario from the moment of parking support contact was also considered.

Scientific novelty and results. The obtained motorcycle FEM reproduces main motion characteristics during the fall and demonstrates visual convergence with the experiment. The study offers a simplified calculation scheme with preserved result correctness, which allows significant reduction in labour costs within further validation.

Practical significance. The developed model can be used as a basis for developing domestic procedures of motorcycle testing. Application of the model will allow safety assessment without the need to carry out the full scope of physical crash tests.