Comprehensive approach to evaluation of degradation in chosen parts of energy equipment

Kuśmierczak, Sylvia; Majzner, Tomas

doi:10.22616/erdev2017.16.n134

Cited by 6 publications

(4 citation statements)

References 2 publications

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“…Internal stress can lead to the first visual sign of wheel rim wearing: finish layer peeling [26]. On the other hand, when the finish layer of the wheel rim is cracked, the metal construction begins to erode in some road conditions with a speed of 0.1 mm/year [27].…”

Section: Introductionmentioning

confidence: 99%

Steel Automotive Wheel Rims—Data Fusion for the Precise Identification of the Technical Condition and Indication of the Approaching End of Service Life

Borecki,

Rychlik,

Zan

et al. 2024

Materials

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Steel automotive wheel rims are subject to wear and tear, down to the end of their service life. Manufacturers use standard destructive tests to determine the probable lifetime of the car wheel rim. With this approach, to predict the remaining use time, it is necessary to know the initial parameters of the wheel rim, actual mileage, and its use characteristics, which is difficult information to obtain in the real world. Moreover, this work shows that a vehicle’s technical condition can affect the rim’s remaining service time. This work describes a new method of precise binary identification of the technical condition of steel car wheel rims using the dispersion of damping factors which result from experimental modal analysis. This work also proposes a new method of indicating the approaching end of wheel rim service life with limited parameters: run-out, average of damping factors, and dispersion of damping factors. The proposed procedure requires two sequential examinations of the rim in standard periods related to the average annual mileage of the vehicle. On this basis, it is possible to indicate the approaching end of the life of the steel rims about 10,000 km in advance.

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Section: Introductionmentioning

confidence: 99%

Steel Automotive Wheel Rims—Data Fusion for the Precise Identification of the Technical Condition and Indication of the Approaching End of Service Life

Borecki,

Rychlik,

Zan

et al. 2024

Materials

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“…With this knowledge, agricultural producers are trying to find feed preparation equipment that is optimal in terms of quality and quantity, separately or as part of a line, depending on the volume of production [7]. These are mainly crushers or flatteners for producing dry concentrates, which are the most known and proven [8][9][10][11][12][13]. However, studies show that processing carried out using this type of equipment does not ensure full utilization of the energy value of the grain [11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Research on the Work Process of a Station for Preparing Forage

et al. 2020

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Forage from grain plays a special role in animal nutrition because it constitutes feed with a high content of readily available carbohydrates. Unfortunately, the equipment used to prepare forage is often manufactured without the necessary justification and confirmation of the declared sizes and indicators of the work process. This forms the basis for our theoretical and experimental studies. Research has been carried out to provide justification of the design and operating parameters of the patented station for producing forage from cereal crops. This article describes the technology for preparing forage from grain and provides a detailed description of the station used and the principle of its operation. During the experiments, we studied the influence of the angle α of setting the grid-work (plate) and the distance S from the nozzle to the grid-work on the quality of forage. Qualitative, quantitative, and energy indicators have been evaluated using up-to-date measuring instruments and equipment. The method is described, and the studied factors and evaluation criteria for the preparation of forage from grain are indicated. The forage quality results are presented, as determined by the content of whole grains in it via the residue on a sieve with a sieve size of 3 mm when preparing it with a different combination of the studied factors. The analysis of the energy consumption results of the process of preparing forage from grain under various operating conditions of the plant is shown. As a result, the optimal location parameters of the passive grinder have been found, allowing to obtain high-quality forage with minimal power consumption of the electric motor. A grid-work should be used as a grinder. Its installation angle should be 30°, and the distance between the grid-work and the nozzle should be 205 mm. With this combination of parameters, the specific energy consumption is minimal and amounts to 41.5 W·h/L.

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“…Another frequent method for checking mechanical properties, which is relatively inexpensive, is the hardness evaluation using portable devices or NDT DOI:10.22616/ERDev.2020.19.TF289 methods. However, technical practice often raises product quality problems where light and electron microscopy need to be involved in the inspection process [2][3][4][5]. Light microscopy is often represented in production plants as part of the output control, which cannot be said about electron microscopy.…”

Section: Introductionmentioning

confidence: 99%

Usage of microscopic methods in analysis of non-conforming nickel alloy products

Kuśmierczak

Náprstková

Mičian

2020

19th International Scientific Conference Engineering for Rural Development Proceedings

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The process of creating products with the required utility properties is a multi-stage process determined by a number of factors that determine the resulting quality. Today, given the pressure on the economic side of production, companies have limited input control to the minimum possible. Spectral analysis, material hardness evaluation, or layer thickness control are most often performed. They carry out other analyses in companies sporadically. Common input analyses often do not reveal the actual state of the microstructure such as the presence of undesirable phases, their size, phase distribution, their heterogeneity, etc. These factors affect the weldability and cold formability of the workpiece, and consequently affect the resulting product quality and product life. In the case of bellows production, the input semi-finished products are subject to requirements in terms of technological division of production, which includes input cutting, welding, forming and calibration of the finished product. Even in nickel alloys, the more chemically and structurally complicated the material, the lower its formability. An important factor influencing the formability of these alloys is the occurrence of inclusions. The negative influence of inclusions on cold formability depends on the chemical composition, mechanical properties, their morphology, frequency and distribution in the base matrix. In terms of weldability, nickel alloys are very well weldable. Their weldability is dependent on chemical purity, especially sulphur, carbon and chromium content. The influence of other alloying elements on the weldability of nickel alloys is minimal. Only precipitation-hardened alloys are more difficult to weld. Almost all welding methods as with steel can be used. The paper presents the use of microscopic methods for detecting the causes of non-conforming bellows from nickel alloys.

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Comprehensive approach to evaluation of degradation in chosen parts of energy equipment

Cited by 6 publications

References 2 publications

Steel Automotive Wheel Rims—Data Fusion for the Precise Identification of the Technical Condition and Indication of the Approaching End of Service Life

Steel Automotive Wheel Rims—Data Fusion for the Precise Identification of the Technical Condition and Indication of the Approaching End of Service Life

Research on the Work Process of a Station for Preparing Forage

Usage of microscopic methods in analysis of non-conforming nickel alloy products

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