研究開発におけるマルチフィジックスシミュレーションの具体例
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COMSOL コンファレンス 2020 論文集を見る
Design and Simulation of Underwater Acoustic MEMS sensor
Silicon based MEMS have wide applications in under water sensors. This work aims one such applications, hydrophone. Hydrophone detects the pressure variations of acoustic signals and noise in the water and produces an output voltage proportional to the pressure. Here the attempt is made ... 詳細を見る
Study of Capacitance in Electrostatic Comb-Drive Actuators
Capacitor is mainly defined as two conducting plates that can hold the opposite charges on it. These plates can be used either as a sensor or an actuator. If the relative distance between the two conductors changes as result of given input, then capacitance values will change. This ... 詳細を見る
Aplicação de Elementos Finitos na Ortodontia
O presente estudo visou a avaliação, por meio do método dos elementos finitos, das tensões geradas em um arco ortodôntico chamado de Arco de Retração Dupla Chave, também conhecido como DKL. Para isso foram modeladas as geometrias do arco DKL, dos bráquets e das coroas dentais, no ... 詳細を見る
Stress Analysis on All-Ceramic Specimens of Different Geometries During Thermalcycling Tests
Dental restorations can be made by different materials bonded together, which grant good mechanical resistance and aesthetic at the same time. In order to evaluate the behavior of dental restorations in the oral environment, a test, called thermocycler, is used, which simulates the ... 詳細を見る
Prospects of Multiphysics Simulations to Steer the Development of High Brightness LED Technologies
The versatility of COMSOL Multiphysics® software has positioned it at competitive levels against other considered industrial-standard engineering software tools. This contribution is directed towards emphasizing the need of further developing the basic concepts of this versatile tool in ... 詳細を見る
Numerical Evidence of Unrest-Related Electromagnetic Effects in the Campi Flegrei Caldera, Italy
Electric, magnetic and electromagnetic (em) methods are widely used to monitor active volcanoes. A review of such applications is presented in Johnston (cit). Em signals were recorded in correspondence of numerous volcanic eruptions, for example in the case of the Mt. Unzen in Giapppone, ... 詳細を見る
Residual Stress in the Silicon Membrane of Circular CMUT
During last twenty years capacitive micromachined ultrasonic transducers (CMUT) have been developed extremely fast [1-2]. CMUT is an attractive alternative to traditional piezoelectric transducer, which converts electrical signal to mechanical vibration and vice versa. The main ... 詳細を見る
Numerical Characterizations of Visco-Plastic Behaviour of the TA6V with Metallurgic Phase Change
In order to predict the residual mechanical state of assemblies during pulsed laser welding, mechanical and metallurgical behaviors of materials need to be precisely characterized. Based on experimental data and analyses [1], a numerical model is developed in COMSOL Multiphysics® ... 詳細を見る
Preliminary Design of the New HI-LUMI LHC Beam Screen
The high luminosity large hadron collider (HL-LHC) project aims at increasing the integrated luminosity by a factor of 10 from its original value (from 300 to 3000 fb-1) leading to the potential extension of scientific discoveries. To attain this goal, important upgrades will take place ... 詳細を見る
Thermomechanical Modeling of Dislocation Density Increase During PVT of SiC Crystals
During Physical Vapor Transport (PVT) growth of single 4H-SiC crystal and subsequent cooling down, thermal stresses lead to the multiplication of dislocations that are non-desirable for the semiconductor applications of this material. These dislocations induced by thermal stresses could ... 詳細を見る