EXPERIMENTAL RESEARCH OF PARTIAL REGULAR MICRORELIEFS FORMED ON ROTARY BODY FACE SURFACES

IF 0.8 Q3 ENGINEERING, AEROSPACE Aviation Pub Date : 2021-12-15 DOI:10.3846/aviation.2021.15889
V. Dzyura, P. Maruschak, S. Slavov, D. Dimitrov, D. Vasileva
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引用次数: 3

Abstract

The basic regularities in the influence of processing parameters on the geometrical characteristics of the partially regular microreliefs, formed on the rotary body face surface, are established. Combinations of partially regular microreliefs are formed by using a contemporary CNC milling machine, and an advanced programing method, based on previously developed mathematical models. Full factorial experimental design is carried out, which consist of three factors, varied on three levels. Regression stochastic models in coded and natural form, which give the relations between the width of the grooves and the deforming force, feed rate and the pitch of the axial grooves, are derived as a result. Response surfaces and contour plots are built in order to facilitate the results analysis. Based on the dependencies of the derived regression stochastic models, it is found that the greatest impact on the width of the grooves has the magnitude of the deforming force,followed by the feed rate. Also, it is found that the axial pitch between adjacent toolpaths has the least impact on the width of the grooves. As a result of the full-factorial experiment, the average geometric parameters of the microrelief grooves were obtained on their basis. When used, these values will provide for the required value of the relative burnishing area of the surface with regular microreliefs, and, accordingly, the specified operational properties.
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旋转体表面局部规则微浮雕的实验研究
建立了加工参数对旋转体表面局部规则微浮雕几何特征影响的基本规律。部分规则微浮雕的组合是通过使用现代数控铣床和基于先前开发的数学模型的高级编程方法形成的。进行了全因子实验设计,该设计由三个因素组成,在三个水平上变化。导出了编码形式和自然形式的回归随机模型,给出了轴向槽的变形力、进给速度和节距与槽宽度的关系。为了便于结果分析,建立了响应面和等高线图。基于推导的回归随机模型的相关性,发现对凹槽宽度的最大影响是变形力的大小,其次是进给速率。此外,还发现相邻刀具路径之间的轴向间距对凹槽宽度的影响最小。作为全因子实验的结果,在它们的基础上获得了微浮雕凹槽的平均几何参数。使用时,这些值将提供具有规则微浮雕的表面的相对抛光面积的要求值,并相应地提供指定的操作性能。
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来源期刊
Aviation
Aviation ENGINEERING, AEROSPACE-
CiteScore
2.40
自引率
10.00%
发文量
20
审稿时长
15 weeks
期刊介绍: CONCERNING THE FOLLOWING FIELDS OF RESEARCH: ▪ Flight Physics ▪ Air Traffic Management ▪ Aerostructures ▪ Airports ▪ Propulsion ▪ Human Factors ▪ Aircraft Avionics, Systems and Equipment ▪ Air Transport Technologies and Development ▪ Flight Mechanics ▪ History of Aviation ▪ Integrated Design and Validation (method and tools) Besides, it publishes: short reports and notes, reviews, reports about conferences and workshops
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