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

Acoustics and Vibrationsx

Visualization of a Noise Barrier for Educational Purposes Using a COMSOL App

Y. Heggemann1, T. Breitkreutz1
1Hochschule Mittweida

The COMSOL® app library of the Technical University of Munich is a collection of applications for simulating acoustic phenomena. They are used in the teaching of acoustics to visually represent fundamental vibrational aspects and provide learners with a visual understanding. In the ... 詳細を見る

A Comparative Analysis of Transmission Loss in Helmholtz Resonators and Quarter Wave Resonators

Santosh Kumar Dasila1, Aswathy Surendran2, C. V. Krishnamurthy1, V. Subramanian1
1Department of Physics, Indian Institute of Technology Madras, Chennai, India 600036
2Department of Aerospace Engineering, Indian Institute of Technology Madras, Chennai, India

This study involves a comparative analysis focusing on the transmission loss (TL) exhibited by both the Helmholtz resonator (HR) and the quarter-wavelength resonator (QWR). These resonators are designed to attenuate sound energy specifically at their respective resonance frequencies. ... 詳細を見る

Acoustic superscatterers for passive noise control

Vineeth P R1, Prabhu Rajagopal2
1DRDO Young Scientists' Laboratory for Smart Materials, Hyderabad
2IIT Madras

This poster presents a passive noise control of sound emananted from a vibrating cylinder using acoustic superscatterers. Acoustic superscatterer is a type of metamaterial whose scattering cross-section is larger than its real size. Numerical studies are conducted using pressure ... 詳細を見る

Analytical, COMSOL Simulation Optimization Of Vibration-Based Energy Harvesters For EV Applications

Chandan Pandey1, Barun Pratiher1
1Indian Institute of Technology Jodhpur Rajasthan India 342037

Vibration-based Piezoelectric Energy harvesters convert ambient vibration energy into an applicable electrical charge for wireless sensors, IoT applications, and charging the battery, which is most important to range improvement of the Electric Vehicle. This study analyses different ... 詳細を見る

Beams-driven structures for piezoelectric energy harvesting/sensor and piezoelectric actuator

Balija Upendra1, Brajesh Kumar Panigrahi1
1Department of Mechanical Engineering, Birla Institute of Technology and Science - Pilani, Hyderabad Campus, Telangana, India-500078

Beams-driven structures are structures that use beams to support their weight. The beams are typically arranged in a way that distributes the weight of the structure evenly. Beams-driven structures are often used in buildings, bridges, and other complicated structures. Beams-driven ... 詳細を見る

Studies on the effects of interfering structural vibrations on underwater Acoustic Vector Sensor

Sandhya Prajapati1, Arun Kumar1, Rajendar Bahl1
1Centre for Applied Research in Electronics, Indian Institute of Technology, Delhi, New Delhi-110016, India

In this paper, we report FEM studies of the effect of unwanted interfering structural vibrations on the performance of an underwater Acoustic Vector Sensor (AVS) performed in the COMSOL Multiphysics simulation tool. An AVS is a compact sensor that measures a four-dimensional vector ... 詳細を見る

Underwater acoustic scattering studies on the sub-sea pressure housings

D. Nikhil Sai Prasanna1, A. Thirunavukkarasu1, A. Malarkodi1, G.Latha1
1Ocean Acoustics, National Institute of Ocean Technology, Ministry of Earth Sciences, Chennai, Tamil Nadu

This paper presents a finite element (FE) model of the scattering studies of cylindrical pressure housings made of different metallic alloys such as aluminium, stainless steel 316L and titanium. Understanding the acoustic scattering behavior of underwater objects helps in improving ... 詳細を見る

Optimization of Loudspeakers

A.J. Svobodnik1, T. Nizzoli 1, F.L. Redl 1
1Mvoid Group, Karlsruhe, Germany

Loudspeakers, specifically electrodynamic transducers with enclosures, are used almost everywhere in our life. Transportation of acoustic information is vital for humans since the very beginning of the human evolution. Hence, reproduction of acoustics has a long tradition in engineering ... 詳細を見る

Acoustic manipulation capabilities of a multifrequency AlN based PMUT

Bart Weekers1
1Imec / KU Leuven, Leuven, Belgium

Contactless manipulation of microscopic objects through acoustic waves has proven an attractive solution for several applications over the past decades. This modality is particularly interesting for the manipulation of bio-particles (BPs) due to its relatively low intensities, capability ... 詳細を見る

Electrode design for efficient excitation of vibrational modes in an AlN based PMUT

Bart Weekers1, M. Billen2, D. Tabruyn3, R. Haouari2, P. Gijsenbergh2, V. Rochus2, X. Rottenberg2, L. Lagae3
1Imec / KU Leuven, Leuven, Belgium
2Imec, Leuven, Belgium
3Imec & Department of Physics and Astronomy, KU Leuven, Leuven, Belgium

Piezoelectric micromachined ultrasound transducers (PMUTs) are gaining increasing interest as miniaturized, low-power devices which can be easily integrated with electronic systems for applications such as medical imaging, therapeutic ultrasound, and particle manipulation. This work ... 詳細を見る