What’s New in Simcenter MAGNET 2020 papers/Simcenter MAGNET 2020.2... · 2020. 11. 12. · High...

What’s New in Simcenter

MAGNET 2020.2

Unrestricted | © Siemens 2020 | 2020-10-30 | Siemens Digital Industries Software | Where today meets tomorrow.

Main new additions in Simcenter MAGNET 2020.2


• High performance computing (HPC) for 3D Simulations

• Magnetostriction

• Hysteresis Loss for Time Harmonic Problems

• Robust modeling of permanent magnets

High performance computing (HPC)

Challenge

• 3D electromagnetic, electro-mechanical and multi-physical

simulations are time intensive.

• Simulation times may range from ~hours to days, or even weeks.

• Examples include simulation of machine faults, 6-DOF

electromechanical systems, force calculations for NVH analysis,

machine eccentricity, etc.

Solution

• HPC has been added for 3D static and transient with motion

simulation problems to reduce simulation times.


Improve productivity and lower time-to-market by using HPC

High performance computing

Usage

• The HPC technology in Simcenter MAGNET is offered in two main

ways:

• Parallelization of a single simulation on multiple cores of

single CPU

• Distribution of the simulation job on multiple nodes and CPUs

in a cluster

• Comparison between the existing multi-thread vs. the new HPC

simulation shows massive speed-up



3.7 million elements,

3D transient with

motion simulation

0

5

10

15

20

25

30

1 2 4 8 16 32 42

SP

EE

D U

P

CORES

Distributed computing

Multi-threading


Example

• Over 25x speedup for a large 3D electric

motor transient with motion simulation

• Calculation time reduces from ~days to

~hours




3D transient with

motion simulation

Cores 44 (HT disabled)

CPU Intel Xeon Platinum

8168

CPU 3.7 GHz

Memory 8 GB/core (352 GB

total)

Local Disk 700 GB SSD

Infiniband 100 Gb EDR Mellanox

ConnectX-5

Network 50 Gb Ethernet (40

Gb usable)

Azure second Gen

SmartNIC


3D transient with

motion simulation

0

5

10

15

20

25

30

1 2 4 8 16 32 42

SP

EE

D U

P

CORES136:12:44 5:13:45

3.7 million elements, 3D

transient with motion

simulation


The HPC Package

• HPC is available in Simcenter MAGNET 2020.2 as a licensed option

• System pre-requisites

• Simcenter MAGNET 2D+3D suite: the 2D+3D Static, Time Harmonic, and Transient/Motion solvers

• Floating licenses

• Access to HPC is available for unlimited numbers of cores



Magnetostriction

Challenge

• Megnetostrictive forces may cause stresses and strains in magnetic

materials leading to material extension, contraction and, noise.

Solution

• In Simcenter MAGNET 2020.2, a number of magnetostrictive forces

and field calculations have been added.

• The magnetostrictive forces can be used for NVH or structural

analysis.


Modeling magnetostriction in electromagnetic devices


3D transient with

motion simulation

Improve

productivity

Cross domain

engineering

[ P. Zhang, L. Li, Z. Cheng, C. Tian, and Y. Han, “Study on

vibration of iron core of a transformer and reactor based on

Maxwell Stress and anisotropic Magnetostriction,” IEEE

Trans. Magn. Vol. 55, no. 2, pp. 1-4, Feb 2019.

Magnetostriction

New fields and forces

• New additions include calculation of force fields in 2D and 3D,

Time-Harmonic and Transient (with and without Motion)

• Magnetostriction Nodal Force (volume)

• Magnetostriction Force Density (volume)

• Magnetostriction discontinuity Force Density (surface)

• New mechanical properties have been added:

• Young’s modulus

• Poisson’s ratio

• Magnetostrictive Strain curve




3D transient with

motion simulation

Improve

productivity

Magnetostriction

Example

• A 1300 kvar reactor is presented on this slide.



Improve

productivity

Cross domain

engineering

The magentostriction field and force are displayed as

shaded and arrow plots above

Magnetostrictive forces with (left) and without (right)

pre-stresses are shown.

The physical industrial and Simcenter MAGNET models of a

reactor

Hysteresis Loss

Challenge

• Maximizing the efficiency of transformers, motors and other

electromechanical devices

• Need for accurate and efficient hysteresis and eddy loss

calculations.

Solution

• Hysteresis loss calculation capability has been added for time

harmonic (TH) solvers

• This extends the ability to analyze transformers and induction

machines accurately and rapidly.


Hysteresis losses for time harmonic (TH) solvers


3D transient with

motion simulation

Improve

productivity

Field simulations of a planar transformer with (left) and

without (right) the inclusion of hysteresis effects

Hysteresis Loss


Calculating hysteresis losses for time harmonic (TH) solvers


3D transient with

motion simulation

Improve

productivity

Example

• Let’s reconsider the reactor example that was used for

magnetostriction.

• The flux density distributions (top) show a marked difference in the

saturation level of the device with and without hysteresis loss.

• Similarly, the magnetostrictive forces also show a sizeable

difference (bottom).

Flux density: with (left) / without (right) hysteresis

Magnetostrictive forces: with (left) / without (right) hysteresis

Permanent magnet modeling

Challenge

• Permanent magnet behavior including irreversibility is difficult to

model

Solution

• New capabilities have been added to be able to model magnet

behaviors in the 2nd and 3rd quadrants

• Users may also define permanent magnets as strong or weak.

The reclassification aligns better with experimental data


Modeling the irreversible behavior of permanent magnets.

Reclassification of magnet types.


3D transient with

motion simulation

Improve

productivity

ContactPublished by Siemens


For more information, contact:

Infologic Design Ltd5 Greenside, Wappenham, NN12 8SH, UK

Phone: +44 (0)1327 810383Email: [email protected]

www.infologicdesign.co.uk

What’s New in Simcenter MAGNET 2020 papers/Simcenter MAGNET 2020.2... · 2020. 11. 12. · High...

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