アプリケーションギャラリ

This model determines the reflection coefficient of plane acoustic waves, at different frequencies and at different angles of incidence, off a water-sediment interface. The ability of the Poroelasitc Waves interface to model the coupled acoustic and elastic wave in any porous substance ... 詳細を見る

A Chladni plate is a metal plate that is covered in sand and subjected to vibrations. At certain frequencies, the vibrations produce standing waves, resulting in sand patterns formed on the plate. The vibrations are either formed from a violin bow at the side of the plate or a wave ... 詳細を見る

This tutorial shows how to model the propagation of acoustic waves in large pipe systems by coupling the Pipe Acoustics interface to the Pressure Acoustics interface. The tutorial is set up in both the time domain and the frequency domain. 1D pipe acoustics is used to model the ... 詳細を見る

計算性能の向上と新しい数値手法の開発により, 室内音響シミュレーションにおける波動ベースの技術の使用はここ数年で広まっています. 壁における現実的なインピーダンス条件を含めるという課題は, 従来は周波数領域で解決されてきました. 最近の研究では, データの部分分数表現を使用して, 時間領域モデルに周波数依存インピーダンスを実装することに重点が置かれています. このチュートリアルでは, 部分分数フィット関数を使用して周波数依存の壁インピーダンスデータの部分分数表現を取得する方法と, ... 詳細を見る

An AC contactor is a particular type of magnetic switch device, which is activated by a primary coil fed by an alternating current. Unlike DC switches, such devices can suffer from a tendency to reopen when the AC current crosses zero. The addition of a shading coil that supports ... 詳細を見る

The primary defense of a submarine lies in its capacity to remain hidden during operation. As radio waves are strongly absorbed by seawater, sound navigation ranging, or sonar, is one of the main methods used for the detection of submarines. Sonar systems are also used for underwater ... 詳細を見る

In a reciprocating piston engine the connecting rods transfer rotating motion into reciprocating motion. The connecting rods are constantly under high stresses and the load increases with the engine speed. A failure of one part in the engine usually results in a replacement of the whole ... 詳細を見る

Composite materials are often used in structural applications, where the ability to tailor properties such as stiffness and strength make them attractive compared to traditional engineering materials. In addition to structural applications, composites are also used in applications where ... 詳細を見る

Bearings are used in machines to reduce the friction between moving parts and thereby smooth their relative motion. Rolling element bearings are one of the most widely used bearings, where rolling elements or rollers are used to support the load. These rollers can be of different shapes; ... 詳細を見る

A circular metal bar is subjected to uniaxial tension. As an effect, large plastic strains develop. The material is elastoplastic with nonlinear isotropic hardening. As the elongation is increased, the decrease in radius becomes strongly nonuniform, so called "necking". The development ... 詳細を見る