Experimental study to determine the oscillation of the base vehicle and cable tension during the TMM-3M bridge lowering process
DOI:
https://doi.org/10.54939/1859-1043.j.mst.110.2026.177-184Keywords:
TMM-3M; Military bridge; Experimental cable tension; Dynamics; Oscillation.Abstract
This paper presents the results of an experimental study on the dynamics of a TMM-3M heavy mechanized bridge vehicle during its lowering phase. A specialized measurement system was designed and deployed on the actual equipment to simultaneously record two key parameters: the vertical oscillation of the base vehicle and the tension of the drive cable. The experimental results show a high degree of agreement with previously established theoretical models. The findings reveal that the vertical displacement of the base vehicle's chassis has an average error of approximately 6% compared to the theoretical model. Additionally, the cable tension increases nearly linearly, with an average error of 6.4% throughout the entire lowering process. This study not only validates the accuracy of the dynamic models but also provides a scientific basis for assessing the structural safety and operational reliability of the equipment. The research results not only help validate the theoretical model but also provide a practical basis for assessing the operational safety of the equipment in terms of cable tension.
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