Development of the positive engagement continuously variable transmission design with the application of graph theory

Ivanov, Viktor; Urum, Galyna; Ivanova, Svitlana; Volkova, Mariia

doi:10.15587/1729-4061.2018.131101

Cited by 6 publications

(2 citation statements)

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“…Another method using a matrix is the Interaction Matrix method. This method also is aimed at identifying the interactions between structural elements and their systematization [12].…”

Section: Review Of Heuristic Methodsmentioning

confidence: 99%

Heuristic Techniques as Part of Heuristic Methods and Interaction of Personality Types in their Application

Ivanov¹,

Дімітров²,

Ivanova³

et al. 2020

Adv. sci. technol. eng. syst. j.

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The widespread team project method is more effective when used in conjunction with heuristic methods. The large number of heuristic methods and the variety of their descriptions create a problem to prepare students for the use of these methods. A method based on two areas of knowledge -heuristics and psychology -is proposed. The personality types of students STEM specialties according to Myers-Briggs are considered. An analysis of interaction of personality types from the point of view of application of heuristic methods is performed. The survey for percentage composition personality types of student STEM specialties was carried out and predominantly types of student STEM specialties was determine. Heuristic methods are consideration as sum of heuristic techniques and procedure. It is shown that many methods involve the same heuristic techniques and differ only in procedures. A generalized method has been developed that allows replacing most of the methods based on collective discussion. This method included five heuristic techniques: collective discussion, pause between the presentation of ideas and their criticism, random associations, analogy, expert evaluation, using a matrix. This method is mainly aimed at teaching students of STEM specialties. A project team is formed to use the method. The composition of this team includes a discussion group, a criticism group and a expert evaluation group. These groups are formed in accordance with the personal types of participants. The method includes an algorithm for team members to interact when using heuristic techniques and procedures.

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“…Another method using a matrix is the Interaction Matrix method. This method also is aimed at identifying the interactions between structural elements and their systematization [12].…”

Section: Review Of Heuristic Methodsmentioning

confidence: 99%

Heuristic Techniques as Part of Heuristic Methods and Interaction of Personality Types in their Application

Ivanov¹,

Дімітров²,

Ivanova³

et al. 2020

Adv. sci. technol. eng. syst. j.

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“…Heuristic methods are used in the search for new designs of CVTs. Here they are perhaps the most in demand [24] (Table 2). The DSM (Design Structure Matrix) method is the most popular among transmission researchers [25,26].…”

Section: Screw Jacksmentioning

confidence: 99%

Perspective directions of mechanical power transmission research

2022

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A lot of publications are devoted to the study of gear transmission, which cover all the features of their design, operation and repair. An in-depth analysis of factors that were not taken into account a decade ago was carried out. The efficiency of the drive, taking into account air resistance, and the stress-strain state of the tooth, taking into account centrifugal deformations, were determined. Thus, there are constant complication of the tasks that researchers set themselves. At the same time, recent achievements in the natural sciences have led to a narrowing of the field of use of gears. Thus, the electric motor replaced the internal combustion engine, which was an important object of research for mechanical engineers. The widespread use DC motors with speed control has led to the abandonment of gearboxes in electric vehicles and metalworking machines. Application of mechanical gears in devices. starting with ordinary watches, and ending with the mechanisms of computer disk drives, is a thing of the past. Further in-depth studies of gears, in some cases, don’t make sense, since the object of research disappears. It is important to identify areas of research that remain relevant in the 21st century. First of all, these are transmission studies that use the latest achievements in other areas of science. These include: the use of new materials in gears; use of new forms of tooth profiles and longitudinal forms of the tooth, without technological restrictions; analysis of the operation of the gear drive based on indirect indicators - the spectrum of noise and thermal fields of housings. Also, the study of gears in which the tooth is a working body, such as chain conveyors and pumps, will never lose relevance. Or, in which the gear train combines a number of functions, for example, the worm gears of elevators, which reduce the angular velocity and serve as a fuse.

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