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An air-balloon with a rubber-cord shell and a profiled piston shape model for generating the required cargo vehicles cabin suspension systems spring characteristics

EDN: HRLQJR

Abstract

Introduction (problem statement and relevance). An actual problems in the modern cargo vehicles development are the synthesis and design of cabins suspension systems in such a way as to provide a necessary high comfort level and requirements for allowable vibration levels and load on the driver and passengers. Spring elements are more often used in the domestic trucks cabin suspensions and pneumatic air-balloons with rubber-cord shells in most foreign ones. Modern researches, especially in the field of cabin damping controlled suspension systems, determines the requirements for the load characteristics synthesis that provide the best comfort and vibration load in vehicle cabins. Therefore, the pneumatic air-balloon model development as a tool for synthesizing the required load characteristics of vehicle cabin suspensions becomes an actual challenge.
The purpose of the study – a new method for synthesizing the required vehicle cabin suspension systems nonlinear progressive load characteristics development.
Methodology and research methods. A pneumatic air-balloon with a rubber-cord shell and a profiled piston shape mathematical model is based on the well-known rubber-chord shells theory, supplemented by its device piston profile design features. The developed model using results transformation into a graphical representation is carried out using 3D-modeling software tools. Experimental studies of the synthesis method are carried out using simulation methods in the Multi-Body Dynamics system.
Scientific novelty and results. The developed synthesis method makes it possible to form the nonlinear spring characteristics that provide near-zero stiffness in positions near static equilibrium position, progressively increasing and decreasing during compression and rebound strokes respectively, for vehicle cabin suspension systems.
Practical significance. The developed model makes it possible to form the piston profile geometry of the pneumatic air-balloon with a rubber-cord shell that provides required from the comfort point of view cargo vehicle cabin suspension system load characteristics creation.

About the Author

R. O. Maksimov
Moscow Polytechnic University; KAMAZ Innovation Center
Russian Federation

Maksimov R.O. – postgraduate, engineer, lecturer; lead design engineer – group head

Moscow 107023

Moscow 121205



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For citations:


Maksimov R.O. An air-balloon with a rubber-cord shell and a profiled piston shape model for generating the required cargo vehicles cabin suspension systems spring characteristics. Trudy NAMI. 2025;(2):44-55. (In Russ.) EDN: HRLQJR

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ISSN 0135-3152 (Print)