Deflections and Frequency Analysis in the Milling of Thin-Walled Parts With Variable Low Stiffness

Kononenko, Serhii; Dobrotvorskiy, Sergey; Basova, Yevheniia; Gasanov, Magomediemin; Dobrovolska, Ludmila

doi:10.14311/ap.2019.59.0283

Cited by 9 publications

(5 citation statements)

References 16 publications

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“…Abidat [9] and Abidat et al [10] developed a new method of blade profile generation using the Bezier polynomials. The works [11][12] include research to ensure high-quality mechanical machining of turbine blades for regular operation. Abidat et al [13] studied the clearance effect between the rotor blades and the casing on the mixed turbine performance.…”

Section: Literature Reviewmentioning

confidence: 99%

Analysis of the Three-Dimensional Accelerating Flow in A Mixed Turbine Rotor

Chelabi¹,

Basova²,

Hamidou³

et al. 2021

JES

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An investigation on new rotor blade designs conceived to produce higher exit relative kinetic energy of a mixed flow turbine is undertaken. Accelerating the flow through the rotor in a relative frame of reference improves energy transfer to the shaft, which is only produced in a rotating rotor. A three-dimensional converging rotor channel might respond to the analysis requirements in the subsonic flow regimes. Effectively, the machine experiences a 3.71 % and 3.67 % increase in work output and efficiency, respectively, representing this study’s primary intent. This has been accomplished by varying the shroud profile to a lesser eye tip diameter, then the hub profile to a larger eye root diameter. At last, both shroud and hub profiles are varied. It appears possible to enhance the performance of the rotor in terms of optimum work done and efficiency by devising suitable blade geometry designs. ANSYS CFX 15 is the code of all simulation works.

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Section: Literature Reviewmentioning

confidence: 99%

Analysis of the Three-Dimensional Accelerating Flow in A Mixed Turbine Rotor

Chelabi¹,

Basova²,

Hamidou³

et al. 2021

JES

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“…13). It should be noted that the proposed method does not take into account the influence of vibrations arising from the machining of non-rigid (thinwalled) parts [34][35][36] and requires further development.…”

Section: Figure 12: Variation Of Machining Parameters: (A) -Variation Of Spindle Speed Along a Trajectory; (B) -Variation Of Feed To The mentioning

confidence: 99%

Numerical Control of Machining Parts From Aluminum Alloys With Sticking Minimization

2021

IJOMAM

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To implement a lot of technological processes in the manufacturing of aircraft parts from aluminum alloys, it is necessary to move the tool at a high speed. High requirements for accuracy and manufacturing quality aircraft parts are provided with application of CNC systems with adaptive control algorithms, in which due the mutual influence of the process parameters provided by the parameters of quality and accuracy. Among a number of factors adversely affecting the quality of high speed machining of aluminum alloys in the paper questions influence Lookahead system distortion predetermined (set up) cutting parameters on the formation conditions of the sticking material to the tool. The paper deals with high-speed machining without the use of a cooling lubricant (coolant). The paper provides a qualitative description of the heat generation variation in the cutting zone. It is concluded that it is necessary to cutting speed variation when feed variating. An experimental investigation of the cutting parameters for the appearance of the effect of the processed material sticking on the tool for alloy 1933 has been carried out. Areas of an unfavorable (negative) combination of parameters leading to the sticking of the material to the tool have been identified. The method of cutting modes adaptation to contour feed rate variation on curvilinear areas of a processing trajectory is proposed. The analysis of variation in cutting parameters with the partial deceleration of the spindle simultaneously with the deceleration of feed when moving along the path is carried out. The possibility of excluding the sticking of the processed material to the tool when variation the rotation speed by 20…30% is shown. The proposed method is implemented in the CNC system and used for manufacturing of "Antonov" company airplane parts.

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“…[4]. This makes it possible to analyze their work, solve problems without directly interfering into the real object [5,6].…”

Section: Introductionmentioning

confidence: 99%

Implementation features of local and remote technical objects digital twins

Pliuhin,

Sukhonos,

Biletskyi

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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This paper explores the potential for implementing digital twin technology, focusing on the internal structure of the research object and the remote characteristics of its surrounding environment. Specifically, it examines and demonstrates the practical application of local digital twins, which replicate the object’s structural parameters using data from sensors and measurement devices positioned at key nodes within the research object. Another category of digital twins leverages data collected from instruments measuring external environmental conditions and falls under the classification of remote digital twins. When combined, these local and remote digital twins create a comprehensive framework for predictive decision-making, assessing both the current status of the object and potential outcomes in emergency situations. This study seeks to explore the feasibility of integrating digital twins across various hierarchical levels of the research object. The findings presented in this paper represent the authors’ practical innovations, which demonstrate effective outcomes and offer a foundation for advancing research objectives in this area.

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Deflections and Frequency Analysis in the Milling of Thin-Walled Parts With Variable Low Stiffness

Cited by 9 publications

References 16 publications

Analysis of the Three-Dimensional Accelerating Flow in A Mixed Turbine Rotor

Analysis of the Three-Dimensional Accelerating Flow in A Mixed Turbine Rotor

Numerical Control of Machining Parts From Aluminum Alloys With Sticking Minimization

Implementation features of local and remote technical objects digital twins

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