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The training course introduces the frequency domain vibration, acoustic and fatigue features of LS-DYNA to users, and gives an in-depth look at the application of these features in vehicle NVH simulation and durability analysis. The course includes theoretical lectures and hands-on exercises.
The course is recommended for engineers who need to run vehicle NVH or other vibration and acoustic simulation problems (e.g., aircraft / spacecraft vibro-acoustics, engine noise simulation, machine vibration testing and simulation). The course is also useful to engineers and researchers who work in the area of structural fatigue / durability / safety analysis.
DURATION: TWO days
Introduction：Overview of LS-DYNA’s frequency domain analysis and fatigue analysis features and applications；
Pre and post processing：Keyword setup and output database post processing and analysis with LS-PrePost
Frequency domain vibration analysis
o Modal analysis
o FRF (Frequency Response Function)
o SSD (Steady State Dynamics)(including ERP)
o Random vibration
o Response spectrum analysis（including DDAM）
Frequency domain acoustic analysis
o Panel and element acoustic contribution
o Acoustic modal analysis
o ATV and MATV techniques
Frequency domain fatigue analysis
o Fatigue analysis in random vibration
o Fatigue analysis in SSD (sine sweep)
Time domain fatigue analysis
o Time domain fatigue analysis based on stress
o Time domain fatigue analysis based on strain
o Multiaxial fatigue
o Mean stress correction
o Multi fatigue load steps
o Real time fatigue damage simulation and fatigue failure
Case studies of NVH and fatigue analysis of automotive：FRF for a trimmed BIW，dynamic stiffness and noise transfer functions (NTF)，radiated noise from vehicle，tire noise, brake squeal，tank sloshing noise，vibration and fatigue of batteries
New capabilities of NVH analysis: NVH analysis based on IGA，SEA (Statistical Energy Analysis)
Exercise: Hands-on Exercise，setting up of keywords，post-processing of results，frequency domain binary databases
* Dr. Zhe Cui received his Ph.D. from Xi’an Jiaotong University. He conducted Postdoc research at the University of Kentucky for 2006-2009. He has been working on industry application and providing user technical support for frequency domain vibration, acoustic and fatigue analysis features in LS-DYNA, since he joined LSTC in 2011.
* Dr. Yun Huang received his Ph.D. in Civil Engineering from the University of Minnesota, twin cities in 2006. Before that, he got his bachelor and master degrees from the Department of Hydraulic Engineering, Tsinghua University in 1998 and 2001. He has been working on research and software development for frequency domain vibration, acoustic and fatigue analysis features in LS-DYNA, since he joined LSTC in 2006.
1.CNY 2000 for each day including electronic class material and lunch.
2.Not including hotel fee.
3.The traning is hosted by LSTC and Shanghai Fangkun.
4.All participates will receive a course completion certificate issued by Livermore Software Technology Corp, US office and Shanghai Fangkun.
Elva Yu Tel：18221209107
Shanghai Fangkun Software Technology Ltd. as the domestic master distributor authorized by LSTC, is fully responsible for domestic sales, marketing, technical support and engineering consulting services of LS-DYNA. Relying on strong technical support and product development capability of LSTC, by attracting a group of top LS-DYNA application engineers to join, with integrating and managing a wide range of resources such as LS-DYNA distributors and partners in China, Shanghai Fangkun provides strong technical support services for domestic LS-DYNA users, and facilitates customers to use LS-DYNA software for product design and development more efficiently.
LS-DYNA is a highly advanced general purpose nonlinear finite element program that is capable of simulating complex real world problems. The distributed and shared memory solver provides very short turnaround time on desktop computers and clusters running under Linux, Windows, and Unix. The major development goal of Livermore Software Technology Corporation (LSTC) is to provide, through LS-DYNA, capabilities to seamlessly solve problems that require "Multi-Physics", "Multi-Processing", "Multiple Stages", "Multi-Scale".