Finite Elements Contact Modelling of Planetary Gear Trains

Stoyanov, Svetlin; Dobrev, Vasko; Dobreva, A.

doi:10.1088/1757-899x/252/1/012034

Cited by 8 publications

(4 citation statements)

References 14 publications

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“…The methodology includes the following stages: 1. A theoretical FEM model for the presented planetary gear box has been created in accordance with the methodology suggested in [29].…”

Section: Methodology For the Experimental Researchmentioning

confidence: 99%

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Investigation of the opportunities for experimental research of gear trains vibrations

2019

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The improvement of the dynamic and exploitation characteristics of power transmissions is a significant and important problem. The solution of this problem becomes possible through improving the methods in the area of machine design and the existing approaches in experimental investigations. The vibrations in different technical systems including driving systems and power transmissions increase the noise level and the dynamic load. Therefore, the frequency analysis of these systems is especially important. The theoretical analysis of the dynamic behaviour of gear trains indicates that the vibrations in the area of the resonance zone display non-linear character as a result of partial or complete loss of contact in the meshing. The objective of the research presented is to investigate the dynamic behaviour of gear trains. An experimental test device for measuring, processing and analysis of the gear train vibrations has been deigned. The opportunities for data processing in an environment of LabVIEW and/or MATLAB aiming to obtain in an experimental way relationships demonstrating acceleration and resonant frequencies.Conclusions and recommendations have been summarized.

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“…The methodology includes the following stages: 1. A theoretical FEM model for the presented planetary gear box has been created in accordance with the methodology suggested in [29].…”

Section: Methodology For the Experimental Researchmentioning

confidence: 99%

“…Original theoretical models developed by S. Stoyanov, V. Dobrev and A. Dobreva for planetary gear trains are presented in [27][28][29]. The main purpose of these investigations in the field of power transmissions is to determine the conditions for reduction of noise and vibrations in planetary gears.…”

Section: Prerequisites For Research Implementingmentioning

confidence: 99%

Investigation of the opportunities for experimental research of gear trains vibrations

2019

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“…The vibration behaviour of the elements is described in details in [28,29] and it becomes possible to perform resonance and strength calculations, local stress values and safety boundaries.…”

Section: Investigating the Possibilities For Improving The Design Par...mentioning

confidence: 99%

Theoretical research of transmissions and gearboxes

Bonev,

Dobreva

2023

MATEC Web Conf.

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Significant aspects of the consequences of global warming and some measures that can be undertaken in order to reduce energy consumption and harmful emissions have been presented. The most important actions I this field are related to the renewal of the design of automobile vehicles and their components. A theoretical survey has been carried out in two main areas: invesitigating possibilities of improving the operational characteristics and the design parameters of transmissions and gearboxes, aiming to identify the areas of future dissertation research. A systematization of the reviewed scientific publications has been carried out. Main areas in which additional research can be carried out, related to the specific features of the Bulgarian industry and the state of the available cars in usage, have been identified.

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“…Usually, the lecturers apply CAD and CAM products at every stage of the teaching and learning process, [4]. In addition to calculations, "Design" stage can also include experimental part supported by simulations, [5] and [6].…”

Section: Introductionmentioning

confidence: 99%

Education in Engineering – Challenges and Contributions

Ronkova¹,

Dimitrov²

2019

DAAAM Proceedings

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The paper presents a survey of possible solutions concerning the problems and challenges occurring nowadays in European higher engineering education. The objective of the investigation presented are the opportunities of developing in engineering students such extremely important competences as: creative abilities and skills for decision making through improving the quality of the study process. The main methods to achieve this goal are questionnaire survey conducted in various engineering Bachelor degree courses and tools for improving the communication between university management, faculty and students. The feedback received in this study is especially valuable concerning the students' opinion on the accessibility of the study material provided, the logical consistency between the topics, and the visual presentation of the knowledge. The authors have created a questionnaire based upon the experience from different European universities including University of Ruse, Bulgaria. The results obtained from this survey are compared and summarized. Conclusions have been made about the importance of students' evaluation of the lectures, tutorials, exercises and academic staff presentations and the role of this evaluation process for the improvement of the quality of education.

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Finite Elements Contact Modelling of Planetary Gear Trains

Cited by 8 publications

References 14 publications

Investigation of the opportunities for experimental research of gear trains vibrations

Investigation of the opportunities for experimental research of gear trains vibrations

Theoretical research of transmissions and gearboxes

Education in Engineering – Challenges and Contributions

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