Авторы:
Дата издания
01.07.2025На каком языке издана
ISSN
ISSN 1335-4205 (print version) ISSN 2585-7878 (online version)Область исследования
Тип исследования
Аннотация (краткое описание)
The influence of the cutting angle on the resistance to the bulldozer blade burial during its movement, taking into account the one-sided stressed state of the soil, was studied in the research results of which are presented in this paper. It is established that the resistance to deepening is significantly reduced when the machine is moving, which allows using smaller cutting angles without increasing the energy consumption. Constructive features and kinematics of the working equipment are considered, including a promising parallelogram scheme, which provides automatic reduction of the cutting angle during deepening. Calculations of the resistance of the blade penetration into the ground, and experimental data confirming the cutting force reduction up to 7%, for each degree of angle reduction, are given. It is determined that the optimum cutting angle is 30-40°. The obtained results can be used to increase the productivity of bulldozers and optimize the design of their working equipmentDOI
DOI: 10.26552/com.C.2025.041Тип публикаций
Практическое значение
In the course of the research, it has been established that the process of burrowing the bulldozer’s working body into the ground is characterized by a one-sided stress state arising in front of the cutting blade along the machine’s movement. This allows the blade to penetrate into the ground at lower values of the cutting angle, which contributes to reduction of the cutting resistance. The optimal trajectory of the blade movement from the energy point of view is recognized as such a trajectory of the blade movement, at which the cutting angle at the moment of penetration into the ground is maximum, with its subsequent reduction. The developed mathematical model adequately describes this process, confirming both qualitative and quantitative dependencies established in the course of physical experiments. In particular, the presence of minimum cutting resistance at cutting angle of 35-40° is confirmed, and the sensitivity of cutting force to changes in structural and kinematic parameters of the moldboard suspension is revealed. The model can be recommended for practical application in the design and optimization of bulldozer working equipment to improve its efficiency and reduce the energy consumption of earthmoving operationsКвартиль
Источник квартиля
SCImago (Scopus)Impact Factor
2.3Количество цитирований
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