Virtual stand for investigation of loading of rear suspension links of a high mobility multipurpose wheeled vehicle in the early stages of development
Abstract
For high mobility multipurpose wheeled vehicles (HMMWV) fuel efficiency, turnability, maneuverability, stability, controllability and smoothness are important operational properties.
The suspension is an important structural element of the HMMWV, which reduces the intensity of vibration and dynamic loads arising from the interaction of the wheels with irregularities of the supporting surface, which is especially necessary when driving in extreme road operating conditions in which the use of this vehicle is supposed to be. In this regard, in the early stages of the development of the suspension, it is advisable to use a system for calculating the dynamics of bound bodies to assess the forces and moments acting in its structural elements.
In this work, a mathematical suspension model was created in the system for calculating the dynamics of bound bodies, the most dangerous loading modes are selected and numerical characteristics of loading are determined for them - reactions in the contact spot of the wheel propulsor with the bearing surface, simulation of the selected modes and analysis of the obtained results were carried out, a conclusion was made on the operability and adequacy of the obtained virtual stand and on the possibility of its further use as part of the dynamic model of the entire HMMWV. The mathematical model of the rear two arm suspension includes all its main structural elements, such as the lower and upper arms, fists, hub assemblies, elastic and damping elements.
Virtual stand for studying loading of rear suspension of HMMWV has increased accuracy of loads calculation in comparison with flat kinematic and force calculation.
Since the mathematical model of the virtual stand has a number of variable design parameters, it allows conducting studies of the influence of these parameters on the operational properties of the HMMWV without using expensive full scale prototypes. This makes it possible in the early stages of design to determine the loads acting on the rear suspension links, which can be used in strength calculations and selection of components of the suspension.
About the Authors
I. A. Ilyichev
Bauman Moscow State Technical University
Russian Federation
Russian Federation
Ilya A. Ilyichev - student of the department «Wheeled Vehicles» of Bauman Moscow State Technical University.
Moscow, 2nd Baumanskaya str. 1, 105005
I. V. Chichekin
Bauman Moscow State Technical University
Russian Federation
Russian Federation
Ilya V. Chichekin - Candidate of Technical Sciences, associate professor of the department «Wheeled Vehicles» of Bauman Moscow State Technical University.
Moscow, 2nd Baumanskaya str. 1, 105005
A. Yu. Zakharov
Bauman Moscow State Technical University
Russian Federation
Russian Federation
Alexander Yu. Zakharov - Candidate of Technical Sciences, associate professor of the department «Wheeled Vehicles» of Bauman Moscow State Technical University.
Moscow, 2nd Baumanskaya str. 1, 105005
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Review
For citations:
Ilyichev I.A., Chichekin I.V., Zakharov A.Yu. Virtual stand for investigation of loading of rear suspension links of a high mobility multipurpose wheeled vehicle in the early stages of development. Machines and Plants: Design and Exploiting. 2023;(2):29 - 43. (In Russ.)
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