Performing Mode Superposition Harmonic Analysis Using Ansys Mechanical — Lesson 1
The harmonic response analysis determines the steady-state response of a structure that is subjected to loads that vary sinusoidally over time. This enables us to verify whether the designs will successfully overcome resonance, fatigue, and other harmful effects of forced vibrations. There are two ways to solve harmonic response analysis including the full harmonic and mode superposition methods. In both methods, all loads must be sinusoidally time-varying and must have the same frequency, nonlinearities are not permitted, and transient effects are not calculated. The mode-superposition method sums factored mode shapes from a modal analysis to calculate the structure’s response. This method is faster and less computationally intensive than the full method. The solution can be clustered about the structure’s natural frequencies providing smoother results and more accurate tracing of the response curve. Prestress effect and modal damping can be included. // INTERESTED IN MORE? Visit Ansys Innovation Courses for free courses, including videos, handouts, simulation examples with starting files, homework problems and quizzes. Visit today → https://bit.ly/3Eo8esU // DOWNLOAD FREE ANSYS SOFTWARE Ansys offers free student product downloads for homework, capstone projects, student competitions, online learning and more! Download today → https://bit.ly/32eEcuR // QUESTIONS ABOUT THIS VIDEO OR USING ANSYS? Get help from Ansys experts and peers through the Ansys Learning Forum. Search for answers to common questions, browse discussion categories or ask your own question. Visit today → https://bit.ly/3qsytK2 // STAY IN THE LOOP Follow our Ansys Academic LinkedIn showcase page for updates on learning resources, events, job opportunities, cutting-edge simulation content and more! Follow today → https://bit.ly/3Bbaaow 1:09 - Understanding Harmonic Response Analyses 2:17 - Understanding Mode Superposition Method 2:45 - Understanding Results we can expect from Harmonic Response Analysis 5:20 - Demonstration of using the Multizone Mesh Method in Mechanical 4:39 - Understanding the connection between Harmonic Analysis and Modal Analysis 9:43 - Understanding the advantage of Clustering Results
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