Parametric synthesis of stabilizing neurocular control of a technological module

The article proposes a new approach to combined parametric synthesis (synthesis in real or accelerated time) of neuroregulators of multidimensional and multi-connected physical systems and technological processes based on the application of the velocity gradient method in differential form and the theory of sliding modes.

Engine Power Required When Using a Tractor with a Technology Module

A shortage of class 2 and class 3 tractors was observed in peasant farms. As a solution to this problem, it was proposed to develop a technological module that would increase the versatility of class 1.4 tractors by transferring them to a higher traction class. (Research purpose) The authors aimed to substantiate the nominal operating power of the engine for a tractor with a technological module. (Materials and methods) To calculate the required power, the authors proposed a method that takes into account the design features of the modular construction of a machine-tractor unit. (Results and discussion) The authors showed that for a modular power unit with a 6K6 wheel arrangement, it is necessary to consider a number of additional factors having an impact on the accuracy of the calculation: firstly, the tractor’s traction and coupling properties depend on the number of driving axles; secondly, the wheel slippage along individual axes is not the same and occurs due to a constructively conditioned kinematic discrepancy in their drive; thirdly, the three-axle transmission efficiency can be determined only as a total indicator of three transmission branches, that is, to drive the tractor front and rear wheels and, separately, to drive the wheels of the technological module. The authors compared the required engine power when using a tractor with ballast and that with a technological module. (Conclusions) It was determined that in order to achieve the maximum traction force of adhesion on the hook when moving to the next higher traction class, it is necessary that the tractor, that the technological module is joint to, has the energy saturation of 2.00-2.41 kilowatts per kilonewton, which corresponds to traction and energy concept tractors whose engine power cannot be realized through traction. It was found that the power saturation of the tractor with the technological module will be equal to 1.59-1.65 kilowatts per kilonewton, which corresponds to the tractor of the traction concept and allows realizing the built-in engine power through traction.

Improving the performance of a ploughing tractor by means of an auxiliary carriage with motorized axle

The article describes the analysis of results from field tests on ploughing units based on a modular draft device (MDD). This device is named MDD-100 and consists of an energy module and a technological module. The energy module is a universal tractor with a rated draft resistance of 16 kN. The technological module is an additional axle, equipped with an active wheel drive, a threepoint hitch linkage, and a saddle-type semi-trailer. During the working process, the draft resistance of the energy and the technological modules of the MDD-100 add up. As a result, the draft resistance of the latter may reach 26 kN, and more. This allows the MDD-100 to be classified as a draft device in traction class 3 and be used with agricultural machines with a large working width. The MDD-100 was tested with a five-bottom mounted plough with a working width of 1.75 m and a draft resistance of 24-28 kN. The best option for driving the MDD-100 with a plough was its movement with the right-side wheels in the furrow. The draft resistance of the plough would decrease by 12.0%, if the option of the MDD-100 outside the furrow is used. This ensured a 12.8% reduction in the skidding of the MDD-100 wheels and a 13.1% decrease of fuel consumption for the ploughing unit. Compared to a 4WD tractor, the use of a modular draft device with a 6WD wheel arrangement offered a greater stability of the ploughing depth.

Calculation of engine power for a tractor of traction class 1.4 with a technological module

The technological provision of peasant farms is characterized by a deficit in their fleet of tractors of classes 2, 3. As a promising direction for solving this problem, it is proposed to develop a technological module that allows increasing the versatility of class 1.4 tractors by transferring them to a higher traction class. To calculate the rated power of the engine of a tractor of class 1.4, when operating it with a technological module, a method is proposed that takes into account the design features of the modular construction of a machine-tractor unit.

Development of a Technological Module for Control and Verification of on-Board Equipment for Storing Temporary Data

High-speed radio link HSRL is designed to transmit target information from spacecraft equipment to the ground. A block of onboard equipment for storing temporary data OESTD is a part of the onboard equipment of a high-speed radio link OEHSRL. Before the spacecraft is launched into space, acceptance tests of the input control are carried out. To do this, it was necessary to develop testing equipment TE and software for it. TE of OESTD is designed to check the OESTD in general and each block in particular during autonomous tests. This paper considers the subsystem of technological software - a component of the TE software system, which allows checking the operation of the FPGA as part of the OESTD. The subsystem main algorithms and functions performed by the subsystem are given. The interaction of the operator of control and testing equipment with programmable logic integrated circuits FPGA, which are part of the on-board equipment block for storing temporary data of the OESTD, is considered. Debugging software is required to enable this interaction. An FPGA with the RISC-V architecture was chosen, debugging via GRMON turned out to be impossible and OpenOCD was chosen. As a result, a technological software module was developed for testing and ensuring the operability of the FPGA as part of the onboard equipment for storing temporary data. The following components were developed: a subsystem for interaction with the device to ensure the ability to send commands and receive response messages, service functions to convert response messages into a readable form for the operator, a subsystem for interaction of the module with the main frame of the TE software, and widgets to provide the ability to manually enter commands from the user conveniently.

Mathematical Modeling and Evaluation of the Transport and Technological Module Drive Efficiency

The main reason for using heavy tractors is the high energy saturation of modern agricultural machinery. For the full engine power realization, the tractor must have high traction performance. Ballasting, the drive wheels doubling, transport and technological modules increase traction. (Research purpose) To determine the best way to increase traction. (Materials and methods) The authors calculated the propulsors pressure of the Terrion 3180 tractor loaded with ballast weights and aggregated by the MES-300 transport and technological module on the soil using mathematical modeling. It was noted that the pressure on the soil is 38 percent less when using the transport and technological module, with the same traction. (Results and discussion) The authors analyzed the design of the MES-300. It was revealed that to improve the transport and technological module operation, it was necessary to reduce weight. It was found that when using the transport and technological module to increase the tractor traction, fuel consumption increased by an average of 3 percent. The authors showed that it was possible to reduce consumption by improving the transmission, which was based on the drive axle from the T-150K tractor. They found out that the effective drive scheme was an individual drive of the drive wheels, which allowed to combine the positive sides of the differential and hard drive. They performed mathematical modeling of a transport and technological module with various types of transmission (mechanical, hydrostatic, electric). It was stated that hydrostatic transmission was the most efficient type of transmission in terms of fuel economy. (Conclusions) The authors determined that the modernization of the MES-300 through the use of a transmission with an individual drive on each wheel had positive results: a change in power and torque supplied to each wheel; reduction in kinematic mismatch and power circulation; increase fuel efficiency.