Mardeeva

Creation of means of effective protection from external dynamic effects has always been one of the most important problems of modern equipment. The aim of this work is to increase smooth running of multi-wheeled vehicles using an adaptive control of elastic-damping elements of the suspension system. On the basis of application of methods of fuzzy logic, adaptive laws of a continuous suspension control system of multi-wheeled vehicles, namely the “inertial damper” adaptive law and the adaptive law of the counteraction of a linear-angular fluctuations, were developed. Methods of simulation modeling were used to determine that efficiency (reduction of the variance of the vertical accelerations at the driver's place compared to the unmanageable adaptive suspension) of the “inertial damper” law is 7...20%; one of the laws of counteraction of linear-angular fluctuations - 0...13%.

The required level of damping a multiple-seated oscillatory system, as it is known, depends on the nature of the external impact. In this case, regulation of damping characteristics depending on the operation mode of depreciation systems is one of the main directions of further improvements. Increasing the quality of primary control systems for suspension of multi-wheeled vehicles with the number of axes more than three appears to be very promising. An adaptive relay control law for damped suspension of multi-wheeled vehicles was developed in order to prevent linear-angular fluctuations in the housing. Methods of simulation modeling were used to determine that efficiency (reduction of variance of vertical accelerations at the driver's place compared to the unmanageable suspension) of the adaptive law of counteraction to linear-angular fluctuations is 7...22%. Introduction of an adaptive component increases efficiency of the algorithm by 5...10% compared to the non-adaptive law.

The required level of damping a multisupporting oscillatory system, as it is known, depends on the nature of the external impact. In this case, regulation of damping characteristics depending on the operation mode of depreciation systems is one of the main directions of further improvements. Direction of increasing the quality of primary control systems for suspension of multi-wheeled vehicles (MWV) with the number of axes more than three appears to be very promising. A mathematical model and calculation methodology of design parameters of a pneumohydraulic cushion with backpressure and three-level damping for controlled suspensions of multi-axis chassis were developed. An example of calculation of a cushion for MWV suspension with a 8x8 wheel formula and total mass of 60 tons is given. The adaptive law of relay control of MWV suspension system, namely the “inertial damper” adaptive law, was developed with the use of fuzzy logic methods.