Ryazan State Agrotechnological University named after P.A. Kostychev
Author list of organization
List of articles written by the authors of the organization
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CONTACTLESS METHOD OF COPYING THE RELIEF OF THE SOIL WHEN YOU DELETE A POTATO HAULM
DescriptionThe article has developed the device for non-contact distance measurement, which effectively terrain surface with no mechanical contact with her, just maintaining the distance from the cutting unit to the soil surface
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LABORATORY-FIELD TESTS OF EXPERIMENTAL DIGGER WITH MODERNIZED DIGGING THE WORKING BODIES
DescriptionPotatoes in our country are one of the most cultivated cultures in agriculture. The most time-consuming process in the production of potatoes is harvesting. Currently for potato harvesting potato harvesters or diggers are used. Existing machines are not sufficiently well-behaved in adverse operating conditions such as the high and low humidity. Quality of work of the units and devices of potato harvesters depends on the digging working parts. In the process of potato harvesting up to 1000 tons of heaps from 1 hectare go through the units of the machine, which includes plant residues and dense soil out of row spacing. To eliminate or reduce the impact of this lack, on either side of the coulter we set cutting discs which prevent ingress of heaps out of row spacing. However, due to the imperfections of the design they are slipping during operation what causes accumulation and enhancing traction resistance. Based on these facts, the work on improving the digging working parts in the actual and future challenges for the country's agriculture
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LABORATORY AND FIELD RESEARCHES OF THE BD-4M MODERNIZED CRUSHER OF POTATO TOPS MACHINE
DescriptionThe description of crusher of potato tops with the variable diameter of cutting is given in article. Theory of planning of experiment, the dynamics of joint knives and laboratory-field tests of crusher are also considered
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Description
The mathematical model presented in this article is designed to assess the probability of occurrence probability of technological failure potato harvester according to the specific conditions and usage
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MATHEMATICAL MODEL OF MOTION OF AN UNIVERSAL VEHICLE ACROSS THE FIELD
DescriptionThe article developed a mathematical model of movement of the universal vehicle through the fields, having longitudinal and transverse slope of the surface
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MATH DESCRIPTION OF THE PROCESS OF THE AUTOMOBILE DIAGNOSING PARAMETER CHANGE
DescriptionThe article shows the importance of math description and grounding the function taking into account the process of changing the parameter when developing the methodology of automobile diagnosing. It is pointed out that after all the prediction error and effort depend on the choice of approximating function. The wrong choice of the function can bring to naught all the efforts to manage safety margin and other parameters of cars elements. One can find the requirements to math description and grounding the function of the parameter change. Based on the analysis of factors influencing the process of parameters change and requirements to math description of this process we have noticed that it is necessary to approximate the change (increase) of the state variable by the chance ordered function with increasing realizations. One can consider the parameter change realization both strictly and not as a monotone function ranging from zero to the limit change of the parameter. We have mentioned that the fore-quoted reasoning with the account of two groups of factors make possible to investigate the parameter change at this or that moment of work as a sum of two random values. We have made a conclusion that they usually express the link between the change rate (for instance, detail wear rate) and the readings of the material properties and functioning conditions (metal skin hardness, unit loading on the detail surface, its relative rate of movement) by the functional determined dependence got as a result of lab tests or theoretical study. In the conclusion, one can see that the analysis of the results of math description of the process of the parameter change is sufficient enough
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METHODS OF CHOOSING DIAGNOSED VEHICLE PARAMETERS IN AGRICULTURE
DescriptionThe article presents an analysis of the existing approach to automobiles technical maintenance in agriculture. We have pointed out that in modern conditions it is impossible to forecast the automobiles maintenance operation frequency and as a result its improvement as well. It is obvious that one cannot achieve the considerable increase of maintenance operation efficiency by separate means and there exist the necessity to treat it as a system and use the up-to-date methods to investigate and improve complicated systems. We have made a conclusion that the increase of maintenance operation efficiency is not possible without some rational strategy of maintenance operation and repair. We have shown that the program of maintenance operation and repair being an integral part of automobiles technical maintenance has considerable effect on maintenance and repair quality. As a result, there is some necessity of the developed system of parameters diagnosing and control in technical maintenance and repair. We have shown that to get sufficient diagnose information one needs selection of the controlled parameters which give maximum information about the object technical status taking into account possible characteristics of its operational faults. We have discovered that in order to solve the task it is necessary to have the object’s information pattern, calculation of possible characteristics of the controlled object being in good or bad order due to some parts fault, evaluation of information brought by every parameter and determining parameters to be diagnosed. We have proposed to evaluate the parameters’ information value with the help of information entropy as uncertainty measure that is one of the main concepts of the information theory. Because of solving the task, we have got the aggregate of the controlled automobile parameters orderable according to the amount of information
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Description
Condition monitoring is a necessary element of the transport and special machinery in agriculture. The task of the control operations other than the determination of the technical state of the object is to determine the required amount of work, as well as rational amount of collateral the repair of which could be combined with the next maintenance. Based on the results of processing of the information, we may generate requests for service. In the conditions of uncertainty of receipt of requests for servicing of individual machines, estimated volumes and timing, we have am appropriate development of applied technique of justification of the number of diagnostic posts for interactive control of a technical condition of vehicles and special machinery in agriculture. The presented methodology is based on probabilistic methods, and allows the quick optimization of the number of existing posts interactive diagnostics in the enterprise, if necessary, translating the existing posts in "standby" mode, or Vice versa, returning from a reserve in "work" mode. The production and technical base of the enterprise service based on the specific assumptions are considered as a system of mass service (SMO), and the function of such a SMO – as the process of mass service. The process of queuing as applied to interactive diagnosis are "Markov" processes "death and reproduction" with a finite or countable number of States and continuous time. To describe the states of the system we use the system of the Kolmogorov equations for steady state of "Markov" process. On their basis, we have determined average queue length, time of stay orders in the queue, number of busy channels and the bandwidth of the CFR. Using the intensity of the requests and the service time of a single application for specific equipment, the article establishes the efficiency of online diagnosis posts. The result of the proposed applied methodology enables timely decision-making about the need for reconstruction or technical re-equipment of the company
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TECHNIQUE OF AN ASSESSMENT OF IMPURITY OF THE THIN PURIFICATION FILTER OF DIESEL FUEL
DescriptionThis article discusses the results of the studies made by the faculty and the staff of Ryazan State Agrotechnological University named after P.A. Kostychev confirmed with RF patents
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A METHOD OF CONSTRUCTING A MATRIX OF STATES OF THE DIAGNOSTIC PARAMETERS OF BRAKE SYSTEM OF A CAR
DescriptionThe article describes the method of determining the list of rational diagnostic parameters of the brake system of a vehicle using the theory of probability and mathematical statistics. The problems determining the statistical probabilities of failures on objects considered a run; mathematical models (regression dependence) the probability of failure of run; A statistical evaluation of the significance of the coefficients of regression models; verification has been made on the adequacy of the regression models; the probabilities of possible states of objects. On the basis of the construction and analysis of structural- effect model brake system information and calculates the importance of each monitored parameter using the notion of information entropy, determine the parameters to be diagnostic, and builds a matrix condition of brake systems for non-destructive testing, in order to move on maintenance and repair of the actual state