Optimisation Procedure of Inner Geometry in Spherical Roller Bearings With Regard to  Their Durability

Šteininger, Ján; Hrček, Slavomír; Smetanka, Lukáš; Skyba, Rudolf

doi:10.20858/sjsutst.2020.106.15

Cited by 10 publications

(9 citation statements)

References 4 publications

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“…[30][31][32] The development of new technologies introduces also new construction materials, new production techniques of semi-finished products and bearing components or new installation methods. [33][34][35]…”

Section: Methodsmentioning

confidence: 99%

Advanced Logistics Strategy of the Company to Create Sustainable Development in the Industrial Area

Rakyta¹,

Bubenik²,

Biňasová³

et al. 2022

Preprint

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Strategic management sets the direction of a company for several years ahead. Managers and business owners who create strategy must anticipate and have the ability to see systemically—the paper deals with creating a logistics strategy for a company operating in the industrial sector. The first section summarises the theoretical background for strategy and logistics and current trends affecting logistics processes. The second chapter analyses the current state of the art in logistics strategy development and summarizes its problem areas. The central part of the paper is the proposal of a methodology for logistics strategy development in the industrial area by a progressive approach. The methodology is divided into 5 phases - preparatory, analytical, formulation, implementation, and evaluation and control phases. The methodology is partially validated. The created variants of the logistics strategy include the introduction of such elements that will lead to the gradual development of the Industry 4.0 trend in the given company. This is mainly the first variant called "automation," which includes the introduction of an automatic tractor for material import, the introduction of an automatic system for transport and storage of work in progress, and the introduction of a new logistics information system that will make greater use of already established barcodes (transparency, data in real-time).

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Section: Methodsmentioning

confidence: 99%

Advanced Logistics Strategy of the Company to Create Sustainable Development in the Industrial Area

Rakyta¹,

Bubenik²,

Biňasová³

et al. 2022

Preprint

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show abstract

“…The variables defined in the WG outer shape equation influence the circumference of the WG and hence the inner ring inner diameter of the assembled ball bearing. The model of the ball bearing with flexible rings located on the WG outer shape is created by the method described by Steininger et al [ 20 ]. The bearings’ measures are based on standard products of the PBF Krasnik factory (type 113-1145TN for the HD 42 and type 114-876TN for the HD 120) with characteristic dimensions shown in Figure 3 and the nominal dimensions listed in Table 2 [ 21 ].…”

Section: Parametric Model Buildingmentioning

confidence: 99%

“…The variables defined in the WG outer shape equatio the WG and hence the inner ring inner diameter of the as of the ball bearing with flexible rings located on the W method described by Steininger et al [20]. The bearings' products of the PBF Krasnik factory (type 113-1145TN fo for the HD 120) with characteristic dimensions shown in sions listed in Table 2 [21].…”

Section: Parametric Model Buildingmentioning

confidence: 99%

Global Sensitivity Analysis of Chosen Harmonic Drive Parameters Affecting Its Lost Motion

et al. 2021

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The aim of the presented study was to perform a global sensitivity analysis of various design parameters affecting the lost motion of the harmonic drive. A detailed virtual model of a harmonic drive was developed, including the wave generator, the flexible ball bearing, the flexible spline and the circular spline. Finite element analyses were performed to observe which parameter from the harmonic drive geometry parameter group affects the lost motion value most. The analyses were carried out using 4% of the rated harmonic drive output torque by the locked wave generator and fixed circular spline according the requirements for the high accuracy harmonic drive units. The described approach was applied to two harmonic drive units with the same ratio, but various dimensions and rated power were used to generalize and interpret the global sensitivity analysis results properly. The most important variable was for both harmonic drives the offset from the nominal tooth shape.

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“…The lifting system is a dynamic machine, with individual components moving at different speeds and accelerating at different rates. However, only three positions of the system must be checked for load: the bottom dead centre, top dead centre, and the place where the piston must exert the greatest force to set the device in motion [13][14][15][16][17][18]. The force used to move the system is calculated in the following chapters.…”

Section: Forces Acting On the Frameworkmentioning

confidence: 99%

Design of Vehicle Lifting Equipment Using Progressive Methods

Cuchor

Kučera

Lukac

2021

LOGI – Scientific Journal on Transport and Logistics

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The main objective of this article is to analyse the structural design of tire lifting equipment for tire services. To gain a better insight into the problem, several steps must be taken. The first step is to conduct a market analysis, which involves identifying all available equipment. Several types of lifting devices were distinguished within the development process, which differ from each other in terms of design and power supply. The type of structure and power unit represent the second steps in the design process. This is a critical aspect of the design since the forces necessary to move the system change as a result of these attributes. The design itself is the last step in the device’s design. Passenger cars differ from each other by their weight, which is limited to 3.5 tons. Based on the weight, basic strength calculation and dimensioning of the lifting device are carried out. Based on the calculations, the scissor lift device is selected. The lower frame, scissor legs, ramp, mechanical lock, and scissors drive mechanism are five main components of the device. This type of structure is best used with a hydraulic drive unit, which is calculated in the article.

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Optimisation Procedure of Inner Geometry in Spherical Roller Bearings With Regard to Their Durability

Cited by 10 publications

References 4 publications

Advanced Logistics Strategy of the Company to Create Sustainable Development in the Industrial Area

Advanced Logistics Strategy of the Company to Create Sustainable Development in the Industrial Area

Global Sensitivity Analysis of Chosen Harmonic Drive Parameters Affecting Its Lost Motion

Design of Vehicle Lifting Equipment Using Progressive Methods

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