Equalizing Leaf Spring Vehicle Suspension Synthesis Technologies Based on Modern Mathematical Simulation Modeling
DOI:
https://doi.org/10.31181/rme454Keywords:
Design Technologies, Synthesis, Mathematical Simulation, Balancer Suspension System, Vehicle, Leaf Spring SuspensionAbstract
The research addresses the use of equalizing leaf spring vehicle suspension systems synthesis technology. The development of a vehicle with an equalising suspension system involves synthesising the required leaf spring load characteristics to achieve the desired vehicle smoothness, considering their potential implementation. This synthesis tasks must be solved using modern vehicle dynamics simulation modeling methods. The problem lies in the absence of a simplest dynamic equalizing leaf spring suspension model, which accounts for the leaf spring angular bending stiffness and can be used at the early stages of synthesis, when most of the leaf spring suspension parameters are still unknown. The research aims to develop a mathematical model for the equalizing leaf spring suspension dynamics in a multi-axle vehicle, considering the spring sheets angular bending stiffness. It should enable the use of this method in early-design vehicle motion models to synthesise the required suspension systems' load characteristics and subsequently analyse vehicle vibration load and force factors in various vehicle-operating modes. The developed spring dynamics model makes it possible to increase the accuracy of vehicle dynamics modeling by 3-6% and reduce the computer simulation time of vehicle dynamics in the range from 15 minutes to several hours. In practice, the developed mathematical model has found its application in the complex synthesis of equalising leaf spring suspension systems for multi-axle vehicle technologies. The research results indicate that the use of advanced few-leaf springs in equalising suspension systems for multi-axle cargo vehicles improves the vehicle smoothness by 5-13% compared to classic multi-leaf springs.
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