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Linear motors are used in many applications in need of translational motion. Typical characteristics of linear motor designs are high precision or quick acceleration. This model investigates a synchronous motor with three-phase winding on the stationary part and permanent magnets on the ... 詳細を見る

アルカリ水電解は, 水素ガスを生成するための確立された工業プロセスです. セル内では, 陰極で水素ガスが, 陽極で酸素ガスが生成されます. 電解液は水溶液であり, 発生したガスが泡状になると, 実効イオン伝導率が低下します. また, 発生したガスは, 電極反応がアクセス可能な表面積を減少させることから, セルの性能に悪影響を及ぼす可能性があります. この例では, ガス生成がアルカリ電解セルの性能に与える影響を調査します. 詳細を見る

A slope stability analysis is performed and the Factor of Safety of the dam embankment is calculated by using the Shear Strength Reduction Technique. The pore pressure in the soil is computed based on Darcy’s law, and the Mohr–Coulomb constitutive model is used to describe the ... 詳細を見る

An Evans droplet experiment is a century-old corrosion experiment for demonstrating oxygen transport-limited corrosion. A droplet of water is placed on a metal surface, and over time the surface features differences in the radial direction of the surface in terms of amount of corroded ... 詳細を見る

This tutorial model uses a heat sink geometry from the Part Library. The tutorial shows different approaches to heat transfer modeling when studying the cooling of an electronic chip. In the first part, only the solid parts are modeled, while the convective airflow is modeled using ... 詳細を見る

このモデルは, COMSOL Multiphysics を使用して, 異なる次元で定義された現象を完全に連成した方法でモデル化する方法を示しています. ほとんどの場合, 反応速度式は反応物と生成物の濃度の関数として定義されますが, 吸着反応では活性部位または表面複合体の表面濃度もモデル化する必要があります. これは, リアクターのバルク内の質量バランスを, デバイスの表面のみに存在する種の質量バランスと結合する必要があることを意味します. このデバイスは, 触媒, バイオチップ, 半導体部品, または表面固有の化学種を含む任意のプロセスである可能性があります. ... 詳細を見る

It is often not possible to insert a normal microphone directly into the sound field being measured. The microphone may be too big to fit inside the measured system, such as for in-the-ear measurements for hearing aid fitting. The size of the microphone may also be too large compared to ... 詳細を見る

Prior to the reliability testing, surface-mount devices (SMDs) are required to go through a preconditioning process, which represents the effects of storage and the typical reflow operation in the following board assembly process. During the preconditioning process, test samples usually ... 詳細を見る

The shape of a log-periodic antenna resembles that of a Yagi-Uda antenna, but is composed of a coplanar array to achieve a wider bandwidth. It is also known as a wideband or frequency-independent antenna. All metallic parts are modeled using the perfect electric conductor (PEC) boundary ... 詳細を見る

This example illustrates the modeling and dynamic analysis of a three-cylinder reciprocating engine. The model combines rigid and flexible components to investigate engine performance and the stresses generated during operation. The analysis helps identify critical components and ... 詳細を見る