Simulation and experimental validation of gas-engine blade dynamics during milling

被引：0

作者：

Nikolaev, S. ^{[1
]}

Kiselev, I. ^{[2
]}

Kuts, V. ^{[2
]}

Voronov, S. ^{[2
]}

机构：

[1] Skolkovo Inst Sci & Technol, Ctr Design Mfg & Mat, Nobel Str 3, Moscow, Russia

[2] Bauman Moscow State Tech Univ, Dept Appl Mech, 2nd Baumanskaya Str 5, Moscow, Russia

来源：

PROCEEDINGS OF INTERNATIONAL CONFERENCE ON NOISE AND VIBRATION ENGINEERING (ISMA2018) / INTERNATIONAL CONFERENCE ON UNCERTAINTY IN STRUCTURAL DYNAMICS (USD2018) | 2018年

关键词：

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper is dedicated to the simulation of turbine blade milling dynamics taking into account stock and machine tool dynamic properties for accurate prediction of unsafe milling modes. Its important to note that blade eigenfrequencies and damping ratios which largely determine system dynamics vary during machining due to material removal. The special methodology is proposed to identify blade modal parameters and update its finite-element model. Damping-frequency dependencies were built for each mode shape with least-squares fitting and used for precise milling dynamics simulation in special 3DCUT software. The proposed methodology is tested on a case of rational milling modes analysis for the gas-engine blade. The results of milling simulation are in a good agreement with experimental results, therefore proposed methodology can be extended to other parts such as bladed disks, engine stators, flexible body parts.

引用

页码：3527 / 3534

页数：8

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