By Mehrzad Tabatabaian
COMSOL Multiphysics software program is without doubt one of the most dear software program modeling instruments for engineers and scientists. This ebook is designed for engineers from the fields of mechanical, electric, and civil disciplines, and introduces multiphysics modeling options and examples observed by way of sensible purposes utilizing COMSOL 4.x. The e-book contains a better half CD-ROM with records of over 25 versions, photos, and code. the most goal is to introduce readers to take advantage of COMSOL as an engineering device for modeling by way of fixing examples which could develop into a advisor for modeling comparable or extra advanced difficulties. the target is to supply a set of examples and modeling instructions during which readers can construct their very own types. Readers are assumed to be acquainted with the rules of numerical modeling and the finite aspect strategy (FEM). The publication takes a flexible-level method for featuring the fabrics in addition to utilizing useful examples. The mathematical basics, engineering rules, and layout standards are provided as indispensable elements of examples. on the finish of every bankruptcy are references that comprise extra in-depth physics, technical info, and information; those are mentioned in the course of the publication and utilized in the examples. COMSOL for Engineers may be used to enrich one other textual content that offers historical past education in engineering computations and techniques. Examples supplied during this ebook may be regarded as "lessons" for which historical past physics should be defined in additional element. FEATURES
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Com). COMSOL INTERFACE2 After purchasing the product license you can install COMSOL on your machine, either PC or Mac. 3. 4 has a different interface. 3. 1 will open (default layout windows arrangement may vary). This window has three major parts: ■■ ■■ ■■ Model Builder, which accumulates all features/steps that may be used for building a model in a tree-style format; Model Wizard, which allows data entry for applications of different features, such as geometry, physics, material properties, meshes, and post-processing; and Graphics, which shows geometry as well as the modeling results in color with legends.
To stop the movie, click on the stop icon . It is recommended to stop the movie occasionally to see the mode shapes at different modes. Alternatively, a specific frame can be shown by moving the slider bar in the Frames section. 1. 18 Data entry window for animation/Player for eigenfrequencies. 3: Parametric Study for a Bracket Assembly: 3D Stress Analysis In this example, we introduce Model Library, a useful resource in COMSOL. 3. Parametric analysis, importing existing CAD files into a model, setting up global parameters also will be explained.
For a given structure, in this example a plate, there exists a set of frequencies at which it can vibrate. The smallest value of this set is called the fundamental natural frequency of the structure. Natural frequencies are the solution of the homogeneous governing equations, and applied loads usually do not have an effect (or a very small effect on the global stiffness matrix) on the solution. 3). 1 when initially at rest. Also we would like to calculate the corresponding modal shapes associated with natural frequencies.