教員プロフィール：フエドリネンコ ドウミトロ 特任講師(研究)
教員プロフィール
◎研究キーワード
spindle bearings hydrostatic bearing high-speed spindle ultra-precision spindle smart spindle
◎研究内容
Research direction: Development of ultra-precision spindles with hydrostatic bearings. An innovative contribution of this work is establishing a fundamentally new class of controlled hydrostatic bearings to ensure machining accuracy, performance, and energy efficiency. The philosophy taken as a basis for the efficiency gain of machining is the maintenance of a stable size of a lubricant layer between supporting surfaces through programmable control systems. Specified control is grounded on the regulation of flow characteristics of bearing with proportional valves and clearance regulation between bearing surfaces employing elastic elements of the bearing casing.
Research direction: Development of high-speed spindles with fluid bearings
The philosophy of applying hybrid bearing designs is taken for the performance and energy efficiency gain of machine tool spindles. The idea of using low-viscous lubrication of fluid bearings simultaneously with automatic control systems is put on the basis of the solution of the problem of reduction of friction losses at high rotation speeds of a spindle. Hybrid bearing designs allow changing lubrication mode depending on spindle rotation speeds. Thus, it allows us to reduce both pump and friction losses in the fluid supply system.
Research direction: Intelligent spindle systems for smart manufacturing.
The key scientific problem of this direction is how to overcome the technical contradiction when high-speed machining between simultaneous maintenance of high productivity indicators on the one hand and accuracy, energy efficiency, vibration and thermal stability on the other hand. The mentioned contradiction can be solved by implementing intelligent spindle systems with a set of smart functions to achieve high machining performance and efficiency. The specified approach is grounded on studying and developing autonomous multipurpose spindles integrated into a smart manufacturing system.
The concept of a high-speed spindle for smart manufacturing
◎産学連携の可能性
◎代表的研究成果
Fedorynenko D., Kirigaya R., Nakao Y. (2020): Dynamic characteristics of spindle with water-lubricated hydrostatic bearings for ultra-precision machine tools. Precision Engineering, Vol. 63, pp. 187-196.
Nakao Y., Kirigaya R., Fedorynenko D., Hayashi A., Suzuki K. (2019): Thermal Characteristics of Spindle Supported with Water-Lubricated Hydrostatic Bearings. Int. J. Automation Technol., Vol.13, No.5, pp. 602-609.
Fedorynenko D., Sapon S. (2019): Hydrostatic spindle for ultra-precision two-sided machining. Technical Science and Technology, No 1(15), pp. 97-105.
更新日：2023/04/25
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