TY - JOUR ID - 16702 TI - Stability Analysis of Articulated Bus in Straight-ahead Running Manoeuvre JO - Journal of Applied and Computational Mechanics JA - JACM LA - en SN - AU - De Felice, Alessandro AU - Mercantini, Matteo AU - Sorrentino, Silvio AD - Department of Engineering Enzo Ferrari, University of Modena and Reggio Emilia, Via Vivarelli 10, Modena, 41125, Italy‎ AD - Protezioni Elaborazioni Industriali (PEI) Srl, Via Torretta 32, Calderara di Reno, 40012, Italy AD - Department of Engineering Enzo Ferrari, University of Modena and Reggio Emilia, Via Vivarelli 10, Modena, 41125, Italy Y1 - 2021 PY - 2021 VL - 7 IS - 3 SP - 1649 EP - 1662 KW - pusher articulated bus KW - hydraulic joint KW - single-track model KW - Stability analysis KW - Hurwitz criterion KW - yaw instability KW - jackknifing DO - 10.22055/jacm.2021.36566.2869 N2 - A comprehensive study on the stability of a planar linearized single-track model of a two-section pusher articulated bus is presented with the aid of a complete set of stability maps. The two sections of the vehicle model are connected at the hitch point by a revolute joint; an equivalent visco-elastic characteristic function describes its rotational visco-elastic properties, playing a major role in stability control and therefore in passive safety. The equations of motion are derived in analytical form, allowing easy implementation of the non-linear model (eventually including a non-linear viscoelastic characteristic functions of the joint). Stability of the linearized model is then studied in equilibrium configurations by means of sensitivity analysis with respect to the model’s governing parameters. Stability maps are drawn on the basis of sets of parameter values related to straight-ahead running, steady-state manoeuvres. The most important parameters controlling the onset of unstable motions are identified, paying attention to the role played by the equivalent rotational damping coefficient and the equivalent torsional stiffness characterizing the connection joint, with the aim of finding criteria for its design. UR - https://jacm.scu.ac.ir/article_16702.html L1 - https://jacm.scu.ac.ir/article_16702_2f6e776082a12fe0a5a4062cd26ef994.pdf ER -