Research of the platform suspension parameters for breeding and seed production works using the method of simulation modeling
2025
I. A. Starostin | A. S. Ovcharenko | K. S. Dmitriev
The aim of the study was to determine and calculate the required operating range of the suspension of the platform wheel modules for breeding and seed production by studying its operating characteristics considering the aggregated machines and operating conditions. Based on the developed mathematical model of the platform suspension for breeding and seed production and its design characteristics, a simulation model of the platform suspension operation under the operating conditions of a given technological process was compiled. The simulation model contains the parameters of road surface unevenness, as well as the specified speed and longitudinal acceleration of the platform. The objects of research were the elastic-damping characteristics of the suspension elements of the platform for breeding and seed production. Based on the results of the research, the ranges of force adjustment, spring stiffness and shock absorber damping coefficient were determined. Thus, the range of adjustment of the force on the elastic element of each technological module of the chassis should be 5886–25715 N, the range of adjustment of the spring stiffness 34220–136883 N/m, the range of change of the damping coefficient of the shock absorber 9043–18086. Based on the obtained values of the suspension operating ranges, layout solutions for the design of the platform suspension for breeding and seed production work were given: a change in the stiffness parameters can be ensured by using two- or multi-stage stiffness change systems, and a change in the damping coefficient - by means of a controlled regulator of the hydraulic fluid flow.
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