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  • Automatic Modal Analysis. Reality or Myth?
    The increasing use of modal analysis as a standard tool means that both experienced and inexperienced analysts are faced with new challenges; uncertainty about the accuracy of results, inconsistency between estimates of different operators, the tedious task of selecting obvious poles
  • Modal Analysis Versus Finite-Element Analysis
    problems that occur in the field. Modal analysis and finite-element analysis are two popular CAE tools. The terms in the title of this editorial require a brief explanation. Modal analysis has become the favorite label for what is more accurately called experimental modal analysis (EMA), or modal testing
  • Shake, rattle, and modal analysis
    less press. Yet examining a part or structure's modal vibrations can point the way to product longevity and design changes to prevent annoying or potentially hazardous vibrations. Analyzing a structure's normal modes or natural frequencies also finds its resonant frequencies. Examples include a diving
  • Modal Excitation Source
    Modal excitation sources impart vibrations into a system for modal analysis. The system is stimulated or vibrated by the excitation source and then external accelerometers measure the resulting vibration signature. Modal analysis is the process of breaking complex structural motion into individual
  • Understanding Modal Parameter Technology and Mode Shape Scaling
    Modal analysis has become a frequently used method for studying the dynamic behavior of. mechanical structures. This technique is usually presented using parameters which are. defined by complicated mathematical derivations. Unfortunately, it is difficult for the. experimentalist to apply
  • LMS Engineering Services Performed a Modal Test Campaign on Goodrich Landing Gear for the Airbus A380
    In the Super Rig at Goodrich Corporation's landing gear facility in Oakville, Ontario (Canada), LMS engineering consultants subjected a body landing gear prototype assembly for the Airbus A380 to Experimental Modal Analysis (EMA). After suspending the 12,000 pound body gear 12 feet high above
  • Vibration Analysis, for Designers
    engineers to move past ubiquitous static analysis and into the realm of analyses that more accurately model product behavior. Vibration analysis, often called dynamic analysis, is one area where FEA technology is on the move. * Modal analysis in FEA software finds the resonant frequencies
  • Designers intro to FEA, part III
    heat flux are typical output data requested in the steady-state thermal analysis. Modes of vibration calculated in modal analysis are prerequisites to vibration analysis using the modal superposition method. Combined transient thermal and linear static analyses allow calculating thermal stresses

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