Open Engineering News

Nanotech 2010 - Korea

Thu, 29 Jul 2010 13:13:57 GMT

Open Engineering will be present at the Nano Korea 2010 exhibition. NANO KOREA is the second largest exhibition in the world for nanotechnology.

Indeed, as components are scaling down (e.g. Nanodevices, MEMS), Oofelie truly becomes the simulator of choice for your transducer design: Governing time-constants inside the components reach similar orders of magnitude. This neccessitates Strongly Coupled Simulation techniques for best accuracy and convergence of your results.

Take advantage of our latest developments providing integrated optimized chained and strong couplings of parametrized applications like PiezoPyroElectric, PiezoVibroacoustics, ElectroThermalMagnetics, Thermal Fluid Structure Interaction, Piezo driven Optics, MEMS-MOEMS, MBS, and so much more to discover.

Click here to learn more about the design of Actuators and Sensors Using Oofelie.

Vibrating Intertial Accelerometer.

Wed, 26 May 2010 09:37:23 GMT

Onera constructed a monolythic quartz sensor, Sensitive to orthogonal acceleration. This concept efficiently decouples the vibrating beam from the outside case through a decoupling framework. It permits to maximize the vibration quality factor of the beam, needed for frequency stability.

The whole device - including the sensor's package is simulated using Oofelie becasue of the need of strongly coupled Piezo-thermo-elastic modeling.

The resonating beam is activated through piezoelectrcity while thermo-elastic damping is critical for space (zero-gravity) and vacuum applications. At the same time thermal stresses influencing the frequency behavior need to be minimized.

For more information consult The Onera Webpage (In French)

Piezoresistive Pressure Sensor.

Wed, 26 May 2010 09:10:51 GMT

Piezoresistive Semiconductor material printed on a flexible membrane structure. The stretching of this structure translates itself in a change in resistivity of the material. Measurement circuits can be co-simulated with build-in electronic components.

Capacitors in MEMS

Wed, 26 May 2010 08:46:47 GMT

Micromachined variable capacitors are used in RFMEMS, monolithic VCO's, accelerometers, gyroscopes and varactors.

Critical to the succes of coupled analysis of structural - thermal - fluidic – electric-optic fields inside semiconductor components, is the integration inside widely used EDA designflows such CADENCE virtuoso, Tanner EDA, and EEsof ADS. Since it allows for co-simulation of the component inside the electrical circuit.

Ring APA Actuator

Wed, 26 May 2010 08:25:51 GMT

The ring actuator is constituted by a metallic ring and 2 piezoelectric stacks. A potential is applied to the 2 piezoelectric stacks through the piece of metal at the centre. Due to the potential, the 2 piezoelectric stacks are contracted and induce a transversal displacement at the top of the actuator. The main goal of this type of actuator is the high precision positioning.

Sensors And Actuators

Wed, 26 May 2010 07:19:31 GMT

Piezo-resistive pressure sensor (top left), MEMS based gyrometer (top right),
APA piezoelectric based actuator (bottom left), MEMS based flow sensor (bottom right)

In the case of actuators, the analysis focuses mainly on the mechanical response due to an electrical loading and in the case of sensors, on the inverse phenomenon. The harmonic response of accelerometers and gyrometers enters in this class of problems.

Sensors and actuators functionality is often based on the combination of physical phenomena

Capacitive - Electrostatics
Piezoresistivity
Piezoelectriity
Thermal
Magnetics

As components are scaling down (e.g. MEMS), Oofelie truly becomes the simulator of choice for your transducer design: Governing time-constants inside the components reach similar orders of magnitude. This neccessitates Strongly Coupled Simulation techniques for best accuracy and convergence of your results.

ewec 2010 Warsaw

Thu, 15 Apr 2010 14:08:58 GMT

Open Engineering / Samtech will present FINE/Oofelie FSI at the Ewec 2010 Tradeshow in Warsaw, Poland. From Tuesday 20 till Friday 23rd of April 2010.

Actuator 2010 Bremen Germany

Tue, 13 Apr 2010 07:18:55 GMT

The breakthrough release of Oofelie that just came out, provides an answer to many of your current and future challenges. Putting you in front of competition.

Click here to learn more about the design of Actuators and Sensors Using Oofelie.

Chick here to confirm your attendance to the Open Engineering stand - at Actuator 10 in Bremen

Nordic Tour April 2010

Thu, 11 Mar 2010 13:30:52 GMT

The breakthrough release of Oofelie that comes out in April, provides an answer to many of your current and future challenges. Putting you in front of competition.

Chick here to subscribe to the Open Engineering - Samtech Nordic Tour in April 2010

Strong Multiphysics Coupling

Tue, 26 Jan 2010 15:52:26 GMT

Strong coupling of multipysics phenomena reveals much more information than just consecutive simulations. As an example, the coupling factors can simulate the mutual influence of a wing deformation on the airflow around it. Simulations can combine thermo mechanical stresses inside a structure with pressure and temperature exchange from a surrounding flow.

It ensures fast convergence and solution stability simulating multi-unstable invironments.

Active optics

Tue, 26 Jan 2010 12:02:39 GMT

Piezoactuation of a deformable mirror

Deformations exchange at surface level

Tue, 26 Jan 2010 11:56:42 GMT

Integrated design flow

Tue, 26 Jan 2010 11:50:33 GMT

Super Element Models (SEM) generation

Tue, 26 Jan 2010 11:28:18 GMT

Thanks to the strong coupling approach, model reduction techniques are available to generate accurate but fast models of components that can be introduced in other electronics.
Efficient and innovative reduction methods have been developed in Oofelie, which allow the generation of parameterised multiphysics reduced models that are fully compatible with static, modal, dynamic and harmonic simulations. The use of reduced models can lead to significant improvements in terms of simulation time and memory requirements. Furthermore, the ability to re-use components and to generate models that represent families of components, thanks to the parameterisation features, can speed-up the time-to-market.
The reduction methods available in Oofelie can be applied to structural, thermo-mechanical, piezoelectric and thermo-piezoelectric models.
Due to the dynamic reduction approach, reduced models take into account the complete behavior of the models, including stiffness, inertial and damping effects. In addition, all the reduced model variables correspond to input-output quantities and therefore the excitation scheme must not be defined a priori when generating the reduced model.
Reduced models can also be exported to systems simulators using VHDL-AMS or Verilog-A exchange formats. It is also possible to add and connect multiple RLC circuit elements to model the connected circuitry directly inside Oofelie::Mems.

Fluid damping

Tue, 26 Jan 2010 11:27:30 GMT

For MEMS devices that are not packaged in a vacuum environment, the management of the surrounding fluid medium is mandatory. Indeed, it induces an additional damping effect that modifies the dynamic behaviour of the system. A BEM Stokes fluid incompressible formulation is implemented in Oofelie::MEMS to model this damping effect.

Thermo-mechanical and pyro couplings

Tue, 26 Jan 2010 11:26:32 GMT

The Oofelie::MEMS product contains all the capabilities of the Oofelie::PyroPiezoElectric product, where the thermal field and its couplings with mechanical and electrical fields are taken into account in the strongly coupled analysis procedures.

For more information consult The Onera webpage (In French)

Electrostatic actuation

Tue, 26 Jan 2010 11:24:43 GMT

The electrostatic capabilities are dedicated to the modeling of the behavior of electrostatically actuated systems. This feature is very flexible thanks to the use of the conventional finite element method (FEM), together with the boundary element method (BEM). This last method is efficient for taking into account the contribution of infinite medium. Also, a Fast Multipole Method (FMM) algorithm can be used, in some specific cases, to solve very large electrostatic problems with BEM techniques.

Piezoelectric analysis

Tue, 26 Jan 2010 11:24:11 GMT

The general three-dimensional models offer generalized methods that can be adapted and used for many different applications in the transportation (aircraft, automotive), equipment (machinery, motors, sound systems), electronic appliances, biomedical and building industries for instance.

To accurately model the behavior of piezoelectric systems, the strong coupling between the mechanical and electrical fields is considered in the solution approach.

Industry Standard Designflow

Tue, 26 Jan 2010 10:57:23 GMT

Release Notes

Tue, 26 Jan 2010 08:34:27 GMT