|本期目录/Table of Contents|

 CFD-based design and analysis of air-bearing-supported paint spray spindle(PDF)

《纳米技术与精密工程》[ISSN:1672-6030/CN:12-1351/O3]

期数:
2018年4期
页码:
226-235
栏目:
出版日期:
2018-12-15

文章信息/Info

Title:
 CFD-based design and analysis of air-bearing-supported paint spray spindle
作者:
 Ali Khaghani Kai Cheng
 College of Engineering, Design and Physical Sciences, Brunel University London, Uxbridge UB8 3PH, UK
Author(s):
-
 
关键词:
 Air-bearing  CFD analysis  Paint spray spindle  Air-turbine design  Turbine blade design and optimization
Keywords:
-
分类号:
-
DOI:
-
文献标识码:
A
摘要:
In this paper, an analytical scientific approach is presented for the design and analysis of an air-turbine-driven paint spray spindle, and it is used to improve further the design concept of the existing spindle applied in auto?motive coating and paint spraying applications. The current spindle on the market can operate at a maximum speed of 100,000 rpm and features a maximum bell size of 70 mm diameter. Given the increasing demands for high automotive coating/painting quality and productivity in assembly, the design and development of a paint spray spindle with a speed of 145,000 rpm or higher is needed. Computational fluid dynamics (CFD)-based simulation is applied in the approach. Accordingly, CFD simulation-based design and analysis are undertaken, covering the characteristic factors of velocity, pressure of the air supply, rotational speed of the air-turbine, and torque and force reaction on the turbine blades. Furthermore, the turbine blade geometric shape is investigated through the simulations. Three geometrical concepts have been investigated against the original model. The results on
Concept_03 verified the higher angular velocity speeds against the theoretical model. The pressure and velocity effects in the blades have been investigated. The results show that the pressure and velocity of the air supply driving the turbine are critical factors influencing the stability of turbine spinning. The results also demonstrate that the force acting on the blades is at the highest level when the adjacent face changes from a straight surface into a curve. Finally, changing the geometrical shape in the turbine likely increases the tangential air pressure at the blades surface and relatively increases the magnitude of the lateral torque and force in the spindle. Notwithstand?ing this condition, the analytical values surpass the theoretical target values.
Abstract:

参考文献/References

备注/Memo

备注/Memo:
 ? Corresponding author.
E-mail addresses: ali.khaghani@brunel.ac.uk (A. Khaghani), kai.cheng@brunel.ac.uk
(K. Cheng).
https://doi.org/10.1016/j.npe.2018.12.004
2589-5540/Copyright ? 2018 Tianjin University. Publishing Service by Elsevier B.V. on behalf of KeAi Communications Co., Ltd. This is an open access article under the CC BY-NC-ND license
(http://creativecommons.org/licenses/by-nc-nd/4.0/).
更新日期/Last Update: 2019-03-14