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
さまざまな業界のエンジニア, 研究者, 科学者がマルチフィジックスシミュレーションを使用して革新的な製品の設計とプロセスを研究および開発しています. COMSOL カンファレンスで発表したテクニカルペーパーやプレゼンテーションからインスピレーションを得てください. 以下の選択項目を参照するか, クイック検索ツールを使用して特定のプレゼンテーションを検索するか, アプリケーション領域でフィルタリングします.
COMSOL コンファレンス 2020 論文集を見る
Analysis of Acoustic Response of Rooms
The preferred acoustic response of recording studios, auditoriums and conference halls is to have an even energy response over the entire room and throughout full audio spectrum. This can be accomplished by using acoustic panels with complex surface structures that scatter acoustic waves ... 詳細を見る
Analysis of the Acoustic Response of a Railroad Bridge
Aging infrastructure requires frequent inspections to assess their structural integrity. However, the large amount of existing infrastructure, and the distance between these structures present significant challenges to inspectors. Acoustics-based technologies represent a simple, and ... 詳細を見る
Modeling the response of photoacoustic gas sensors
A fast, high-sensitivity detector is required for studies of environmentally relevant gases. Photoacoustic spectroscopy (PAS), an absorption spectroscopy technique in which absorption is detected as sound, is explored as a possible solution. A tuning-fork based PAS sensor is modeled ... 詳細を見る
Optimization of an Acoustic Waveguide for Professional Audio Applications
In modern live sound reinforcement there is a growing use of line sources, obtained through the stacking of many loudspeakers with properly controlled wavefront shape. Thus the use of waveguides is mandatory in order to modify the shape and size of the wavefront exiting from professional ... 詳細を見る
Guided Wave in Engineering Structures Using Non-Contact Electromagnetic Acoustic Transducers: A Numerical Approach for the Technique Optimisation
There are over 10 million kilometers of pipes and pipelines around the world that carry hazardous fluids and gases. Fluids include oil, oil products, chemicals such as solvents, caustics, acids, corrosives and combustibles often at high pressure and temperature. These pipes are ... 詳細を見る
The Acoustoelastic Effect: EMAT Excitation and Reception of Lamb Waves in Pre-Stressed Metal Sheets
The acoustoelastic effect relates the change in the speed of an acoustic wave travelling in a solid, to the pre-stress of the propagation medium. In this work the possibility of assessing nondestructively the stress status in metal sheets, by using the acoustoelastic effect, is ... 詳細を見る
Simulation and Evaluation of Small High-Frequency Side Scan Sonars Using COMSOL
High frequency side-scan sonar, to be fitted on a miniaturized submersible explorer, have been simulated and built. The purpose of this study is to see if COMSOL Multiphysics® can be used to predict the performance of the sonar, especially the beam width, setting the resolution of ... 詳細を見る
Towards a Finite Element Calculation of Acoustical Amplitudes in HID Lamps
High intensity discharge lamps can experience flickering and even destruction, when operated at high frequency alternating current. The cause of these problems has been identified as acoustic resonances inside the lamp’s are tube. Here, a finite element approach for the calculation ... 詳細を見る
An Acoustical Finite Element Model of Perforated Elements
The present work deals with a numerical investigation of resonating systems used for noise control applications. In literature one can find analytical models based on fluiddynamics concepts for evaluating losses occurring across the holes of the perforates. In the paper an acoustical ... 詳細を見る
Analysis of Sound Propagation in Lined Ducts by Means of a Finite Element Model
The present paper describes the results of a Finite Element Model used to analyze sound propagation in lined ducts. By means of a numerical model it was possible to predict the insertion loss inside rectangular lined ducts in a frequency range from 250 Hz to 4000 Hz. The model was ... 詳細を見る