News Archives - FEA, CFD and Explicit Dynamics


Cloud Developments May 2018

NICE DCV through the Web Browser for Linux and Windows

Previously there were different ways of connecting to instances for Linux and Windows. For Linux it was mainly VNC or SSH. For Windows you had the choice of Remote Desktop or NICE DCV. 

In order to take advantage of GPU graphics instances for products such as Discovery Live or ANSYS AIM, the best option was NICE DCV.

However NICE DCV required non standard ports to be opened, and also required the installation of software on your local machine. It also required licences. This gave problems for many IT and finance departments.

Amazon have acquired NICE DCV so now they are providing an updated version of NICE DCV that works directly from the browser over the standard https port (443).  And it’s completely free on EC2 instances!

CADFEM have packaged this up nicely for you so that you can use a unified connection mechanism to both Windows and Linux instances.  Remote Desktop, SSH and VNC will still be supported for now, but we are considering discontinuing it in the future.

Enhanced Networking

The CADFEM Self Service Portal now supports Enhanced Networking. Enhanced Networking is necessary to launch the new C5 and M5 instance types.

Enhanced networking uses single root I/O virtualization (SR-IOV) to provide high-performance networking capabilities on supported instance types. SR-IOV is a method of device virtualization that provides higher I/O performance and lower CPU utilization when compared to traditional virtualized network interfaces. Enhanced networking provides higher bandwidth, higher packet per second (PPS) performance, and consistently lower inter-instance latencies. There is no additional charge for using enhanced networking.

The Elastic Network Adapter (ENA) supports network speeds of up to 25 Gbps for supported instance types. This compares with the various Infiniband speeds as shown in the table below:

25 Gbps 54 Gbps 40 Gbps 32 Gbps 16 Gbps 8 Gbps

C5, F1, G3, H1, I3, m4.16xlarge, M5, P2, P3, R4, and X1 instances use the Elastic Network Adapter for enhanced networking.

Amazon have said that ENA will support up to 60 Gbps by the end of the year!

New C5 and M5 Instance Types

Amazon have released a new generation of C5 and M5 instances, with superior speed and network connectivity to the old C4 and M4 instance types.

We have worked hard to implement these on the Self Service Portal and they are now ready for prime time.

Model Real CPU Cores Memory (GiB) Linux Price (Ireland)
c5.large 1 4 $0.096
c5.xlarge 2 8  $0.192
c5.2xlarge 4 16  $0.384
c5.4xlarge 8 32  $0.768
c5.9xlarge 18 72  $1.728
c5.18xlarge 36 144  $3.456
Model Real CPU Cores Memory (GiB) Linux Price (Ireland)
m5.large 1 8  $0.107
m5.xlarge 2 16  $0.214
m5.2xlarge 4 32  $0.428
m5.4xlarge 8 64  $0.856
m5.12xlarge 24 192  $2.568
m5.24xlarge 48 384  $5.136

And also remember these instance types support networking speeds of up to 25 Gbps!

Standardised Password Generation

We have made the Get Password function now work in the same way for Linux and Windows.  This allows you to click “Get Password” regardless which OS image you are launching.


Simulation of Electric Machines

In 2017 Motor Design Ltd (MDL) and CADFEM have announced their close partnership.

The two companies share a passion for Simulation Driven Product Development and a commitment to the notion that Simulation is More than Software. The combination of software [Motor-CAD and ANSYS] and expert services provided by MDL and CADFEM allow our customers to develop better machines in less time.

MDL is a world leader in developing advanced software and tools for designing electrical machines. Our software, Motor-CAD, is recognised worldwide as class-leading motor design software. We use our expert knowledge of designing electric motors to provide software support to electric machine designers at some of the most prestigious aerospace, automotive and industrial companies worldwide.

CADFEM is one of the largest European suppliers of Computer Aided Engineering (CAE) and is the ANSYS Channel Partner in several countries including the UK, Ireland, Germany, Austria, Switzerland, India. We are experts in simulation across all physics – mechanics, fluids, electromagnetics, systems… We sell and support the full ANSYS portfolio and help our customers to exploit the full benefits of simulation in their product development.

Motor-CAD can be used to quickly and easily perform electromagnetic and thermal performance tests on electric motor designs. ANSYS can be used to bring calculations of electromagnetic performance and cooling to the next level of accuracy and to predict and minimise noise and vibration.

We look forward to presenting to you how the two powerful tools can be integrated seamlessly within the ANSYS Workbench Environment.


Motor-CAD, key capabilities:

  • EMAG: a fast 2D finite element module for accurate electromagnetic and electrical performance predictions
  • THERMAL: Combines a lumped circuit and finite element thermal calculation for optimising the cooling system of a machine.
  • LAB:Provides efficiency mapping and duty cycle / drive cycle transient outputs within minutes 

ANSYS, key capabilities for motor design & development:

  • Vibration and Noise prediction using ANSYS Mechanical
  • Evaluation of Improved Cooling Concepts with ANSYS CFD
  • Detailed magnetic loss and performance calculations with ANSYS Maxwell

Integration of Motor-CAD and ANSYS

  • Motor Design Geometry
  • Integration with ANSYS Mechanical, CFD, Maxwell

Please contact us for more information and to discuss your requirements with our senior engineers. 

Motor Design and CADFEM experts presented at the 4th CADFEM ANSYS Simulation Conference, October 2017 in Dublin. Please view their presentations below and give us your feedback.

Electric Drive Complete Solution  
Jens Otto (CADFEM GmbH, Germany) and Dr James Goss, Head of Technology (Motor Design Ltd, UK)
This presentation outlines an efficient electric motor simulation workflow combining the analysis tools from MDL with ANSYS advanced physics simulation to cover magnetic and thermal effects in machine

Vibration and Acoustics in Electric Drive Development (CADFEM ANSYS Extension)
This presentation covers a most complete application workflow to describe magnetic excited vibration and noise effects for electric motors.
Jens Otto (CADFEM GmbH, Germany)

System Simulation for Sensor Development

Influence of manufacturing tolerances and operational conditions on sensor performance

The Bourns Automotive Division has played a leading role in the design, development and manufacture of potentiometric sensors since 1949. New applications such as advanced driving assistance systems (ADAS) lead to increasing demands for sensor resolution and robustness under various operating conditions.

In order to meet requirements for development, sensor characteristics, manufacturability and costs, Bourns approach is to use system simulation based on the combination of reduced order models derived from field simulations and behavior models.

System simulation accelerates the purposeful development of complex sensor systems consisting of various interacting components. Even with competing optimization goals and design restrictions it is possible to identify ideal sensor configurations through parameter variation.

Please read the full article, learn about the system model set up in ANSYS Simplorer and how Bourns – a CADFEM customer –  is able to fully meet increasing design demands.

Antenna and High-Speed Design using ANSYS Electronics Solutions

The eye diagram allows to assess the signal integrity. Figure courtesy of Robert Bosch Hausgeräte GmbH.

Communication Modules for IoT Applications

In the development of new home appliances the connection to the internet of things (IoT) plays a crucial role for BSH Hausgeräte GmbH. Read the full article

The company is driving innovation for the smart home even faster with the help of simulation using ANSYS electronics tools.

Using ANSYS HFSS and ANSYS optiSLang the influence of various geometry parameters on the antenna performance can be assessed. This allows optimization of the resonance frequencies, the bandwidths and the antenna gain and furthermore understanding the influence of manufacturing tolerances and varying
assembly locations.

New layout concepts are investigated with ANSYS SIwave, especially the arrangement of the power and ground layers and the placement of decoupling capacitors are optimized. In this way capacitors are saved and new design rules are established.
The signal integrity analysis using ANSYS SIwave shows saving potentials for termination resistors and assists the optimization of critical high-speed signal lines.
Crucial for an efficient analysis of PCB layouts is a
streamlined EDA workflow from Mentor Expedition as
layout tool to the ANSYS electronics tools, where apart
from the geometry also part information is transferred to
the analysis tool.

For further information and to talk to our experts regarding the above and other applications, please contact us


ANSYS, Simulation, Software, FEM, CAE