Comparaison du couple massique de diverses architectures de machines tournantes synchrones à aimants

Proceedings of the Institution of Mechanical Engineers, Part G:

Hospital

et al. 2011

International audienceThis article presents estimation models for the model-based preliminary design of electromechanical actuators. Models are developed to generate all the parameters required by a multi-objective design, from a limited number of input parameters. This is achieved using scaling laws in order to take advantage of their capability to reflect the physical constraints driving the actuator's component sizing. The proposed approach is illustrated with the major components that are involved in aerospace electromechanical actuator design. The established scaling laws provide the designer with parameters needed for integration into the airframe, power sizing, thermal balance, dynamics, and reliability. The resulting estimation models are validated with industrial data

Section: Estimation Modelsmentioning

confidence: 99%

“…The assumption of geometric similarity induces a constant magnetic field for an entire range of products. The electromagnetic torque can therefore be deduced from the Laplace forces [35,31]:…”

Section: Magnetic Circuit With Permanent Magnetsmentioning

confidence: 99%

Estimation models for the preliminary design of electromechanical actuators

Proceedings of the Institution of Mechanical Engineers, Part G:

Hospital

et al. 2011

“…The use of scaling laws or similarity rules has the advantage of needing only one reference component for the complete evaluation of a range. Such a modelling approach has already been applied for system design or comparison of technologies [15][16][17][18][19][20].…”

Section: Task 1 Automatic Calculation Of the Whole Vector Of Componementioning

confidence: 99%

“…The scaling laws, also called similarity laws, are an efficient way to study the effect of varying representative parameters of a given component. They are used in various domains such as micro-systems, mechanics, hydraulics and fluid mechanics to compare different technologies, to adapt the dimensions of a mock-up in fluid dynamics, to size mechanical, hydraulic or electrical systems, to develop and rationalize product families or to evaluate costs [15,19,20]. In some cases, it is difficult or impossible to identify and write the equations linking the parameters representative of a given overall problem in a simple way.…”

Section: Appendix: Scaling Law Basicsmentioning

confidence: 99%

Modelling approach for the simulation-based preliminary design of power transmissions

Mechanism and Machine Theory

Maré

et al. 2011

The promises of Model Based Design have led to the development of numerous methodologies and software tools, especially for the specific or detailed design stages, from controller design to finite element analysis. However, the Model Based Design of actuation systems lacks methodologies and expressive simulation models that are suited to preliminary design, where key technical decisions are taken considering various design alternatives and few available design details. In order to fill this gap, the present paper illustrates how scaling laws and acausal modelling can be used as a design tool, exploiting inverse simulation capabilities to evaluate technological alternatives quantitatively from limited design detail information. The application of the modelling approach is shown for two major components of mechanical transmission systems: roller bearings and ball and roller screws. The scaling laws presented are validated with manufacturers' data. To conclude, the suitability of the proposed methodology is illustrated with the preliminary sizing of an electromechanical actuator for an aircraft primary flight control surface (aileron).

“…They are used in different domains as microsystems [9], mechanics [10], hydraulics, fluid mechanics to compare different actuator technologies [11], to adapt the dimensions of a mock-up in fluid dynamics, to size mechanic, hydraulic or electric systems, to develop and rationalize product families or to evaluate costs . This article uses the notation proposed by M. Jufer in [12] for scaling laws calculation.…”

Section: -Scaling Lawsmentioning

confidence: 99%

Preliminary design of electromechanical actuators with Modelica

Linköping Electronic Conference Proceedings

Lefavre

et al. 2009

This article deals with a methodology for a computer-aided design of electromechanical actuators from the preliminary design of components to the detail design of the electrical motor. The developed library of components for the simulation takes advantage of the non-causal and object oriented characteristics of the Modelica language. The capabilities of the Modelica language and the LMS.Imagine.Lab AMESim or Dymola Platforms are strongly used in order to build a fully integrated process to design and size the different component of the final actuator. The proposed approach is illustrated with the sizing of a flight control actuator.