Comparative Study of Vibrations in Apparatus Combinations Tangential Threshing

Vlăduț, V.; Biriș, S. Ș.; PETRE, A.A.; Voicea, I.; Cujbescu, D.; Ungureanu, N.; MATEI, GHEORGHE; POPA, D.; BORUZ, SORIN; CONSTANTIN, A-M.; VASILE, CRISTIAN

doi:10.52846/aamc.2021.02.71

Cited by 5 publications

(5 citation statements)

References 8 publications

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“…A search for possible resonances in the supports of the working organs is presented in Section 2.1.4 when calculating the frequency spectra for the twelve supports of the working bodies. The literature includes the results of some studies related to the problems of vibrations in agricultural machines [25,26,34,[60][61][62][63][64][65][66][67].…”

Section: Identification Of Defects Deficiencies or Operating Errorsmentioning

confidence: 99%

“…Some of the forces' values and the frequency spectra's frequencies were also obtained in [41]. In the same register of concerns and spectral values, [26] estimates the effects of frequencies and vertical accelerations on several types of tractors using frequency-acceleration diagrams. Such diagrams were not accessible for this paper, so frequency-load force diagrams on the working body were used instead.…”

Section: Commentsmentioning

confidence: 99%

“…In the exploitation of agricultural machines, the study of vibrations is carried out more and more experimentally. The results are processed using mathematical statistics in the spirit of the theory of random vibrations [24][25][26][27][28][29][30]. The classical theory of vibrations cannot effectively study the complex vibrations of agricultural machines due to objective reasons: the difficulty of estimating model constants, nonlinear behaviours, and excitations, most often of a random nature.…”

Section: Introductionmentioning

confidence: 99%

“…Apart from these aspects, the influence of games with a functional character, which is impossible to model in a deterministic way, is manifest. Concrete cases are harvesters [24][25][26], farm tractors in transport or various agricultural works [25,[27][28][29][30][31][32][33], as well as cultivator subsoilers [34][35][36].…”

Section: Introductionmentioning

confidence: 99%

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The Random Vibrations of the Active Body of the Cultivators

et al. 2023

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The article continues the exposition of the results obtained in researching an agricultural machine for processing soil, designed for research with applications including exploitation. The MCLS (complex machine for soil tillage) was designed to research the working processes of the instruments intended for soil processing. The MCLS cultivator is a modulated machine (it can work for three working widths: 1, 2, and 4 m, with tractors of different powers) that is designed to use a wide range of working bodies. The experimental data obtained with the structure with a working width of 1 m and the results of their processing within the framework of the theory of random vibrations are presented in this article. The experimental results are analysed as random vibrations of the supports of the active working bodies. As a result, the main characteristics of random vibrations are exposed: the distribution function, the average value, the autocorrelation, and the frequency spectrum. These general results regarding random vibrations are used for several critical applications in the design, execution, and exploitation of some subassemblies and assemblies of agricultural machines of this type. The main applications include estimating the probability of the occurrence of dangerous load peaks, counting and selecting the load peaks that produce fatigue accumulation in the material of the supports of the working bodies, identifying some design deficiencies or defects in the work regime, and estimating the effects of vibrations on the quality of soil processing. All of the outcomes are composed of applications in MCLS research and exploitation. The applications pursue well-known objectives of modelling the working processes of agricultural machines: safety at work, increasing the quality of work, optimising energy consumption, and increasing productivity, all in a broad context to obtain a compromise situation. The material and the method are based on experimental data acquisition, processing, and interpretation.

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Section: Identification Of Defects Deficiencies or Operating Errorsmentioning

confidence: 99%

Section: Commentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Random Vibrations of the Active Body of the Cultivators

et al. 2023

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“…This information can be utilized to identify areas of their operations that can be optimized, allowing them to make more informed decisions about their farming practices and maximize their yields. In short, 5G networks offer a number of potential benefits to agricultural productivity and efficiency [23]. By enabling precision agriculture techniques, autonomous machines, and data-driven decision-making, 5G networks can help farmers increase their yields while minimizing their costs.…”

Section: Agricultural Productivity and Efficiency Using 5gmentioning

confidence: 99%

Analysis of Long-Range Wireless Area Network Enabled Smart Agriculture for Sustainable Food Production

Madasamy

2023

AJRCoS

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Technology advancements and increased connection are bolstering the movement toward digital transformation in agricultural and food systems, which might lead to the proliferation of robots, fully automated farms and tractors, and spraying drones. The next-generation (4G) wireless network connection, known as 5G, will be necessary provide the massive data transmission volumes and low latency that may have many positive effects on IoT and blockchain applications in the agriculture and food industries. This study makes use of LoRaWAN (Long Range Wireless Area Network) for its energy-harvesting capabilities in remote agriculture monitoring. According to the findings of the experiments, LoRaWAN is the best technology to utilize in a system for monitoring agriculture when network lifespan and power consumption are important factors. Following application criteria, the experimental findings may be utilized to pick wireless technology for agricultural monitoring.

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The Random Vibrations of the Active Body of the Cultivators

Cârdei¹,

Constantin²,

Muraru³

et al. 2023

Preprint

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The article continues the exposition of the results obtained in the research of an agricultural machine for processing soil, designed for research with applications including exploitation. The MCLS complex cultivator was designed for the research of the working processes of the instruments intended for soil processing. The MCLS cultivator is a modulated machine (it can work for three working widths: 1, 2, and 4 m, with tractors of different powers) that is designed to use a wide range of working bodies. The experimental data obtained with the structure with a working width of 1 m and the results of their processing within the framework of the theory of random vibrations are presented in this article. The experimental results are analysed as random vibrations of the supports of the active body. As a result, the main characteristics of random vibrations are exposed: the distribution function, the average value, the autocorrelation, and the frequency spectrum. These general results regarding random vibrations are used for several critical applications in the design, execution, and exploitation of some subassemblies and assemblies of agricultural machines of this type. The main applications are: estimating the probability of the occurrence of dangerous load peaks, counting and selecting the load peaks that produce fatigue accumulation in the material of the supports of the working bodies, identifying some design deficiencies or defects in the work regime, estimating the effects of vibrations on the quality of soil processing. All the outcomes are comprised of applications in MCLS research and exploitation. The applications pursue well-known objectives of modeling the working processes of agricultural machines: safety at work, increasing the quality of work, optimizing energy consumption, and increasing productivity, all in a broad context to obtain a compromise situation

show abstract

Comparative Study of Vibrations in Apparatus Combinations Tangential Threshing

Cited by 5 publications

References 8 publications

The Random Vibrations of the Active Body of the Cultivators

The Random Vibrations of the Active Body of the Cultivators

Analysis of Long-Range Wireless Area Network Enabled Smart Agriculture for Sustainable Food Production

The Random Vibrations of the Active Body of the Cultivators

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