Scaling laws based metamodels for the selection of the cooling strategy of electromechanical actuators in the early design stages
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- 作者：Ion Hazyuk ; ion.hazyuk@insa-toulouse.fr" class="auth_mail" title="E-mail the corresponding author ; Marc Budinger ; Florian Sanchez ; Jean-Charles Maré ; Sté ; phane Colin
- 关键词：Natural convection heat transfer coefficient ; Forced convection ; Vertical cylinder ; Design of experiments ; Motor cooling
- 刊名：Mechatronics
- 出版年：2015
- 出版时间：August 2015
- 年：2015
- 卷：29
- 期：Complete
- 页码：67-77
- 全文大小：1067 K
文摘
The integration of electromechanical actuation systems for aerospace applications requires additional thermal stress considerations during the preliminary design, which were not necessary within the hydraulic technology. The favored models during this design phase are simple, continuous and explicit mathematical expressions to enable easy analytical manipulations or implementations in worksheets or optimization loops. The paper shows how such models can be obtained for the desired applications, illustrating the example of a Limited Angle Torque Motor (LATM) with different cooling strategies. The used method for gathering the models is a regression process on data obtained by finite element simulations. The originality of the method stands in the physical insight of the regression function which is based on scaling laws and dimensional analysis. An example of preliminary design of a LATM illustrates the use of the obtained models for the comparison of two possible architectures intended to minimize the mass of the actuator by implementing different cooling strategies.