The Application Gallery features COMSOL Multiphysics® tutorial and demo app files pertinent to the electrical, structural, acoustics, fluid, heat, and chemical. Study the effect of thermal stress on resonant frequency. • Eigen Frequency Analysis with & without thermal stresses. • Change design to minimize the effect of.

Author: | Faubar Digore |

Country: | Sweden |

Language: | English (Spanish) |

Genre: | Music |

Published (Last): | 27 May 2010 |

Pages: | 325 |

PDF File Size: | 10.74 Mb |

ePub File Size: | 19.63 Mb |

ISBN: | 283-2-86630-456-2 |

Downloads: | 96835 |

Price: | Free* [*Free Regsitration Required] |

Uploader: | Goltizilkree |

However, the advanced user can access and modify low-level solver settings as needed. Deformation depends on the ambient pressure and temperature, on the materials used, and on any initial stresses in the material. The plating process can control this stress even for similar materials.

### MEMS Software – For Microelectromechanical Systems Simulation

Get a free 2-week trial by signing up for a workshop in a location near you. The MEMS Module includes analyses in the stationary and transient domains, as well as fully-coupled eigenfrequency, parametric, quasi-static, and frequency response analyses. Popularity Popularity Date Published.

Cmosol are utilized in many kinds of electronic components, including filters, oscillators, and sensors. When the vibration amplitude is small enough that the system is linear the frequency and time domain results agree The equations are then solved using the finite element method and a range of industrial strength solvers. This model shows how to simulate the response of the pressure sensor to an applied pressure, and also how to analyze the effects of packing induced stresses on the sensor tutodial.

The mechanical response of a thickness shear quartz oscillator, together with a graph showing the effect of a series capacitance on the frequency response. AT cut crystals vibrate in the thickness This 2D axisymmetry model uses a parametric sweep of voltage to The thermal stress in a layered plate is studied in this example.

Older hand-held devices on the market work by inducing a chemical reaction that is picked up by electrodes coated This model shows how to create dispersion diagrams from simulation results by extending the tutorial Thin-Film BAW Composite Resonator. The FSI couplings appear on the boundaries between the fluid and the solid, and can include both fluid pressure and viscous forces, as well as momentum transfer from the solid to the fluid — bidirectional FSI.

Consequently, software specifically designed for Nems simulation and modeling has never been more important. This model shows the bending of a cantilever beam under an applied electrostatic load. Piezoelectric Shear-Actuated Beam The model performs a static analysis on a piezoelectric actuator based on the movement of a cantilever beam, using the Piezoelectric Devices predefined multiphysics interface.

The ease of integration of small piezoresistors with standard semiconductor processes, along with the reasonably linear response of the sensor, meems made this technology particularly important in the pressure sensor industry.

One method of creating spring-like structures or inducing curvature in thin structures is to plate them to substrates that are under the influence of residual stresses.

The composite piezoelectric ultrasonic transducer has a cylindrical geometry that consists of a piezoceramic layer, two aluminum layers, and two adhesive layers. Thermoelasticity The Thermoelasticity physics interface is used to model linear thermoelastic materials.

An electrostatically actuated MEMS resonator is simulated in the time and frequency domains. SAWs are utilized in many kinds of electronic components, including filters, oscillators, and Its amplitude decays rapidly, often exponentially, through the depth of the material.

By talking to one of our sales representatives, you will get personalized recommendations and fully documented examples to help you get the most out of your evaluation and guide you to choose the mejs license option to suit your needs. The model performs a static analysis on a piezoelectric actuator based on the movement of a cantilever beam, using comsll Piezoelectric Devices predefined multiphysics interface.

The stress field in a piezoresitive sensor computed with the built-in physics interface for piezoresistive materials in the MEMS Module.

The system applies an AC potential on the electrode surfaces of both Microvisk Technologies develops and manufactures devices for measuring blood viscosity using the power of Micro Electronic Mechanical Systems MEMS and a radical new technique stemming from futuristic research on microtechnology.

It solves for the displacement of the structure and the temperature deviations, and resulting heat transfer induced by the thermoelastic coupling.

For example, to model Joule tutoria, in a structure with temperature-dependent elastic properties, simply enter in the elastic constants as a function of temperature — no scripting or coding is required.

The Fluid-Structure Interaction FSI multiphysics interface combines fluid flow with solid mechanics to capture the interaction between the fluid and the solid structure.

Thickness Shear Mode Quartz Oscillator AT cut quartz crystals are widely employed in a range of applications, from oscillators to microbalances. A plate consisting of two layers, a coating memz a substrate layer, is stress and strain free at degrees C. When COMSOL compiles the equations, the complex couplings generated by these user-defined expressions are automatically included in the equation system.

### MEMS and Piezoelectric Device Models

This example illustrates the ability to couple thermal, electrical, and structural analysis in one model. One of the important properties of the AT cut is that the resonant frequency of the crystal is temperature independent to first order. Thermal Initial Stresses in a Layered Plate The thermal stress in a layered plate is studied in this example.

Capacitive Pressure Sensor A capacitive pressure sensor is simulated. A capacitive pressure sensor is simulated.

## When and Where

Furthermore, you have the option to use the electromechanics interface to include the effects of isotropic electrostriction. The Thermoelasticity physics interface is used to model linear thermoelastic materials.

This particular application moves a beam by passing a current through it; the current generates heat, and the temperature increase leads to displacement through thermal expansion.

The measurement of S-parameter is commonly used to characterize such devices for RF applications. The design and modeling of microelectromechanical systems MEMS is a unique engineering discipline. One such device is the electrostatically controlled micromirror. Simulation of Microelectromechanical Systems The design and modeling of microelectromechanical systems MEMS is a unique engineering discipline.