Modeling of Tire Vertical Behavior Using a Test Bench

Abstract

Tire models are of great importance for precise investigations of vertical vehicle dynamics, including vehicular safety and riding comfort. An adequate modelling of the tire is crucial to properly reproduce vehicle vertical behavior in simulations and to evaluate the influence of the tire in the overall performance of the suspension system. This paper introduced vehicle single-point tire models and, thereafter, investigated the influence of the excitation frequency and inflation pressure on the damping and stiffness coefficients of the proposed tires experimentally. In this manner, a test-bench was used to obtain the model parameters of a light vehicle tire and a motorcycle tire. Given the obtained results, it has been observed that both factors have a significant effect on the parameters of the proposed tire models. Moreover, a quarter car suspension model was investigated using the modelled tires to illustrate the influence of the correct characterization of the tire on the vertical suspension performance. INDEX TERMS Automotive testing, hysteresis, road vehicles, single point models, tire models, vehicle vertical dynamics, viscoelasticity.

Identification and Modeling of a Mountain Bike Front Suspension Subsystem Equipped with a Telescopic Fork and Tire Damping

“…Those advocating for the exclusion of the effects of tire damping have purported, but not necessarily shown, that these effects have only a small influence on the overall system response and thus can be neglected. Those including it generally do so without particular attention to its measurement or estimation except for a few specific studies (Acosta, 2020, Mahr, 2011, Levitt, 1991. This paper demonstrates that for relatively flexible tires, such as those of a mountain bike with minimal carcass plys, limited tread rubber, and relatively low inflation pressures, encountering relatively large deformations with respect to their aspect ratio under impact, both dynamic stiffness and damping can influence system response.…”

Identification and Modeling of a Mountain Bike Front Suspension Subsystem Equipped with a Telescopic Fork and Tire Damping

“…Those advocating for the exclusion of the effects of tire damping have purported, but not necessarily shown, that these effects have only a small influence on the overall system response and thus can be neglected. Those who include it generally do so without particular attention to its measurement or estimation except for a few specific studies (Acosta, 2020, Mahr, 2011, Levitt, 1991. This paper demonstrates that for relatively flexible tires, such as those of a mountain bike with minimal carcass plys, limited tread rubber, and run at relatively low inflation pressures, encountering relatively large deformations with respect to their aspect ratio under impact, both dynamic stiffness and damping can influence system response.…”

Fluctuations dynamics of the root crops cleaner heads from the remnants of tops on the root

“…Вплив коефіцієнтів жорсткості і демпфірування пневматичних шин опорно-копіювальних коліс на динаміку коливань агрегатованої сільськогосподарської техніки із колісним ходом проаналізовано досить предметно. Проте певну частину результатів такого аналізу було отримано в стаціонарних стендових умовах [13]. Інша частина ординат поздовжнього профілю поля діють у діапазоні частот 0 -24 с - На даному етапі досліджень розраховували й аналізували відповідні амплітудно-частотні та фазово-частотні характеристики розглядуваної динамічної системи при відпрацюванні нею зовнішніх збурень за заданої зміни значень параметрів (таблиця), що входять до математичної моделі її руху.…”