Generative Design Methodology for Electrical Machines Design Based on Equivalent Circuit and Field Models of Physical Processes

2021 ◽  
pp. 234-243
Author(s):  
A. Stulov ◽  
A. Tikhonov ◽  
I. Snitko
Keyword(s):  
Equivalent Circuit ◽  
Design Methodology ◽  
Electrical Machines ◽  
Physical Processes ◽  
Generative Design

Generative design and analysis of a double-wishbone suspension assembly: a methodology for developing constraint oriented solutions for optimum material distribution

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Aayush Bhat ◽  
Vyom Gupta ◽  
Savitoj Singh Aulakh ◽  
Renold S. Elsen
Keyword(s):  
Design Methodology ◽  
Manufacturing Industry ◽  
Optimization Technique ◽  
Design Solution ◽  
Material Distribution ◽  
Generative Design ◽  
Trade Off ◽  
Content Type ◽  
Life Study ◽  
Optimal Material

Purpose The purpose of this paper is to implement the generative design as an optimization technique to achieve a reasonable trade-off between weight and reliability for the control arm plate of a double-wishbone suspension assembly of a Formula Student race car. Design/methodology/approach The generative design methodology is applied to develop a low-weight design alternative to a standard control arm plate design. A static stress simulation and a fatigue life study are developed to assess the response of the plate against the loading criteria and to ensure that the plate sustains the theoretically determined number of loading cycles. Findings The approach implemented provides a justifiable outcome for a weight-factor of safety trade-off. In addition to optimal material distribution, the generative design methodology provides several design outcomes, for different materials and fabrication techniques. This enables the selection of the best possible outcome for several structural requirements. Research limitations/implications This technique can be used for applications with pre-defined constraints, such as packaging and loading, usually observed in load-bearing components developed in the automotive and aerospace sectors of the manufacturing industry. Practical implications Using this technique can provide an alternative design solution to long periods spent in the design phase, because of its ability to generate several possible outcomes in just a fraction of time. Originality/value The proposed research provides a means of developing optimized designs and provides techniques in which the design developed and chosen can be structurally analyzed.

scholarly journals Circuit realization method for reduced order inductive PEEC modeling circuits

2016 ◽  
Vol 35 (3) ◽  
Author(s):  
Trung-Son Nguyen ◽  
Tung Le Duc ◽  
Son Thanh Tran ◽  
Jean-Michel Guichon ◽  
Olivier Chadebec
Keyword(s):  
Equivalent Circuit ◽  
Design Methodology ◽  
Large Scale ◽  
Circuit Simulation ◽  
Fast Multipole Method ◽  
Synthesis Method ◽  
Reduced Order Model ◽  
Order Model ◽  
Circuit Realization ◽  
Reduced Order

Purpose To synthesize equivalent circuit obtained from reduced order model of large scale inductive PEEC circuits. Design/methodology/approach This paper describes an original approach for reducing and synthesizing large parasitic RLM electrical circuits coming from inductive Partial Element Equivalent Circuit (PEEC) models. The proposed technique enables the re-use of the reduced order model in the time domain circuit simulation context. Findings The paper shows how to use a synthesis method to realize an equivalent circuit issued from compressed PEEC circuits. Originality/value The coupling between methods PEEC and a compressed method as Fast Multipole Method (FMM) in order to reduce time and space consuming are well-known. The innovation here is to realise a smaller circuit equivalent with the original large scale PEEC circuits to use in temporal simulation tools. Moreover, this synthesis method reduces time and memories for modelling industrial application while maintaining high accuracy.

Multiphysical approach including equivalent circuit models for the sizing by optimization

2016 ◽  
Vol 35 (3) ◽  
Author(s):  
Arnaud Baraston ◽  
Laurent Gerbaud ◽  
Vincent Reinbold ◽  
Thomas Boussey ◽  
Frédéric Wurtz
Keyword(s):  
Equivalent Circuit ◽  
Design Methodology ◽  
Optimization Algorithms ◽  
Physical Models ◽  
Equivalent Circuits ◽  
Automatic Programming ◽  
Implicit Equations ◽  
Robust Programming ◽  
Electrical Devices ◽  
Toyota Prius

Purpose Multiphysical models are often useful for the design of electrical devices such as electrical machines. In this way, the modeling of thermal, magnetic and electrical phenomena by using an equivalent circuit approach is often used in sizing problems. The coupling of such models with other models is difficult to take into account, partly because it adds complexity to the process. The paper proposes an automatic modelling of thermal and magnetic aspects from an equivalent circuit approach, with its computation of gradients, using selectivity on the variables. Then, it discusses the coupling of various physical models, for the sizing by optimization algorithms. Sensibility analyses are discussed and the multiphysical approach is applied on a permanent magnet synchronous machine. Design/methodology/approach The paper allows one to describe thermal and magnetic models by equivalent circuits. Magnetic aspects are represented by reluctance networks and thermal aspects by thermal equivalent circuits. From circuit modelling and analytical equations, models are generated, coupled and translated into computational codes (Java, C), including the computation of their jacobians. To do so, model generators are used: CADES, Reluctool, Thermotool. The paper illustrates the modelling and automatic programming aspects with Thermotool. The generated codes are directly available for optimization algorithms. Then, the formulation of the coupling with other models is studied in the case of a multiphysical sizing by optimization of the Toyota PRIUS electrical motor. Findings A main specificity of the approach is the ability to easily deal with the selectivity of the inputs and outputs of the generated model according to the problem specifications, thus reducing drastically the size of the jacobian matrix and the computational complexity. Another specificity is the coupling of the models using analytical equations, possibly implicit equations. Research limitations/implications At the present time, the multiphysical modeling is considered only for static phenomena. However, this limit is not important for numerous sizing applications. Originality/value The analytical approach with the selectivity gives fast models, well-adapted for optimization. The use of model generators allows robust programming of the models and their jacobians. The automatic calculation of the gradients allows the use of determinist algorithms, such as SQP, well adapted to deal with numerous constraints.

scholarly journals Design of inorganic coils for high temperature electrical machines

Open Physics ◽  
2019 ◽  
Vol 17 (1) ◽  
pp. 698-708 ◽  
Author(s):  
Hamed Elmadah ◽  
Daniel Roger ◽  
Noureddine Takorabet
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Equivalent Circuit ◽  
High Frequency ◽  
Electrical Machines ◽  
Nickel Layer ◽  
Voltage Distribution ◽  
Frequency Model ◽  
Coil Structure ◽  
Fast Transients

Abstract The paper deals with a high frequency model of inorganic coils used to build high temperature (HT∘) motor. The HT∘ wire has a nickel layer that protects the copper against oxidation and a thin inorganic coating, which has poor electrical and mechanical properties. Therefore, the coils must be designed with a special care for getting a good distribution of turn-to-turn voltage during the fast transients excited by the steep fronted voltages of the PWM inverter.A specific coil structure is proposed and a high frequency (HF) equivalent circuit able to compute the turn-to-turn voltages during transients. The voltage distribution between the coils of a stator phase is also detailed.

scholarly journals 2D electrostatic modeling of twisted pairs

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Kaoutar Hazim ◽  
Guillaume Parent ◽  
Stéphane Duchesne ◽  
Andrè Nicolet ◽  
Christophe Geuzaine
Keyword(s):  
Design Methodology ◽  
Three Dimensional ◽  
High Accuracy ◽  
Electrical Machines ◽  
Computational Time ◽  
Two Dimensional ◽  
Weak Formulation ◽  
Content Type ◽  
Twisted Pair ◽  
Electrostatic Modeling

Purpose This paper aims to model a three-dimensional twisted geometry of a twisted pair studied in an electrostatic approximation using only two-dimensional (2D) finite elements. Design/methodology/approach The proposed method is based on the reformulation of the weak formulation of the electrostatics problem to deal with twisted geometries only in 2D. Findings The method is based on a change of coordinates and enables a faster computational time as well as a high accuracy. Originality/value The effectiveness of the adopted approach is demonstrated by studying different configurations related to the IEC 60851-5 standard defined for the measurement of the electrical properties of the insulation of the winding wires used in electrical machines.

scholarly journals Equivalent circuit of a ferrite-wound inductor in a wide frequency range (0 Hz – 500 MHz)

2022 ◽  
Vol 24 (4) ◽  
pp. 25-45
Author(s):  
Vladimir F. Dmitrikov ◽  
Dmitry V. Shushpanov
Keyword(s):  
Equivalent Circuit ◽  
Complex Impedance ◽  
Equivalent Circuit Model ◽  
Mutual Effect ◽  
Wide Frequency Range ◽  
Circuit Model ◽  
Core Material ◽  
Physical Processes ◽  
Measured Impedance ◽  
Wire Resistance

Based on the measured impedance of the inductors wound on various ferrite cores and with a different number of turns, an equivalent high frequency (0 Hz 500 MHz) circuit model was built. The equivalent circuit model was built taking into account the physical processes occurring in the inductor: effect of wire resistance, effect of core material, mutual effect of wire and core material. The attempt explaining why the frequency characteristics (modulus and phase) of the inductor complex impedance have such a character in a wide frequency band (up to 500 MHz) was made. It was shown that for constructing an equivalent circuit model (structure and parameters), measuring only the inductors resistance modulus is not enough. It is also necessary to measure the phase of the inductor complex resistance, which is ignored in many works on the synthesis of an e inductor equivalent circuit.

A Case Study For Participatory Fashion Design Using Generative Design Methodology

2017 ◽  
Vol 67 (4) ◽  
pp. 58-70 ◽  
Author(s):  
Jee Hyun Lee ◽  
Eun Han Lee ◽  
Hye Soo Cho ◽  
Eun Kyoung Yang ◽  
Jeong Min Kho
Keyword(s):  
Design Methodology ◽  
Fashion Design ◽  
Generative Design
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