NVH, Frequency Domain, Fatigue (in-person training)
- NVH, Frequency Domain, Fatigue
- 6 Jun, 2023
- 1 day
- The Arup Campus, Blythe Valley Park, Solihull
We’re offering our valued customers a rare opportunity to receive this advanced training from a leading industry expert, free of charge. This course, which usually costs £400 per day, is an exceptional chance to enhance your skills and knowledge. Don’t miss out!
The course is provided free of charge to Arup’s Oasys or LS-DYNA customers on a first come-first-serve basis. Spaces are limited to 3 per customer organisation.
The objective of the training course is to introduce the frequency domain vibration, fatigue and acoustic features of LS-DYNA to users, and give a detailed look at the application of these features in vehicle NVH simulation.
NVH theory and lab testing technology, overview of LS-DYNA frequency domain features and applications, frequency domain vs. time domain, Fourier transforms
- Frequency Response Function (FRF)
Modal superposition method, damping, nodal force/resultant force FRF
- Steady State Dynamics (SSD) with harmonic loading
Large mass method for enforced motion, Equivalent Radiated Power (ERP), mode expansion with LS-PrePost
- Random vibration with PSD loading
Correlated and uncorrelated multiple PSD excitations, acoustic wave, pre-stress condition
Rayleigh method, Kirchhoff method, BEM, FEM, acoustic panel contribution analysis, vibro-acoustic problems, Muffler transmission loss analysis, ATV and MATV techniques, acoustic eigenvalue analysis, incident waves, half-space problem, weighted SPL, radiated sound power
- Response spectrum analysis
Input earthquake spectrum, modal combination methods (SRSS, CQC, etc.), multi input spectra
Fatigue analysis in harmonic/random vibration environment, Miner’s rule, S-N curves, Dirlik method
- Advanced topics
SEA (Statistical Energy Analysis), brake squeal analysis; NVH based on IGA
This course is recommended for engineers who want to run NVH or other frequency domain vibration, fatigue and acoustic simulation problems with LS-DYNA. This course is useful for engineers and researchers who are working in the area of vehicle NVH, aircraft/spacecraft vibro-acoustics, engine noise simulation, machine vibration testing and simulation, etc.
Dr. Yun Huang, Principal R&D Engineer, ANSYS
Dr. Yun Huang graduated from the department of Civil Engineering, University of Minnesota in 2006. After that he joined LSTC (now Ansys) as a software developer for LS-DYNA. His development has been focused on frequency domain analysis functionalities including vibration solvers and acoustic solvers, and fatigue analysis functionalities.
The course is provided free of charge to Arup’s Oasys or LS-DYNA clients on a first come-first-serve basis. Spaces are limited to 3 per customer organisation.