SAE Professional Development Resource Guide 2013 - 123

Noise/Vibration/Harshness (NVH)
Vibration Analysis using FEA: A Hands-on Workshop
2 Days I.D.# C0830 • Time Response Analysis • Time depended load • Impulse load • Static vs. dynamic response • Time response of a single degree of freedom oscillator DAY TWO • Frequency Response Analysis • Steady state harmonic response • Force and base excitation • Resonance • Modal damping • Frequency response of two degrees of freedom oscillator • Random Vibration • Acceleration power spectral density • Interpretation of random vibration results • Linear vs. Non-linear Vibration Analysis • Modeling Considerations in Vibration Analysis

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FEA has been used by engineers as a design tool in new product development since the early 1990’s. Until recently, most FEA applications have been limited to static analysis due to the cost and complexity of advanced types of analyses. Progress in the commercial FEA software and in computing hardware has now made it practical to use advanced types as an every day design tool of design engineers. In addition, competitive pressures and quality requirements demand a more in-depth understanding of product behavior under real life loading conditions. This seminar introduces one of the advanced types of FEA: vibration analysis. By considering time dependent loads and inertial effects, vibration analysis allows for a more in-depth product simulation thus reducing product development cost and time. The course reviews basic concepts of vibration analysis and illustrates how they are implemented in FEA to simulate product behavior. The most common types of vibration analysis such as modal, time response, frequency response and random vibrations are covered. Participants will have the opportunity to practice skills learned utilizing the commercial FEA software SolidWorks Simulation.

Instructor: Paul Kurowski
Fee $1355

1.3 CEUs

Learning Objectives
By attending this seminar, you will be able to: • Evaluate the importance of dynamic effects in product simulation • Analyze inertial and damping effects in structural response • Use vibration analysis as a design tool • Perform time response, frequency response and random vibration analyses • Apply proper FEA modeling techniques to model system dynamic

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Who Should Attend
The seminar will be of interest to any design engineer who already uses Finite Element Analysis (FEA) as a design tool and would like to explore if and how vibration analysis with FEA may beneﬁt the design process. It builds on participants’ experience with static FEA and on knowledge of mechanical vibrations common to any mechanical engineer.

Prerequisites
Participants should have a degree in mechanical engineering and have some experience with FEA either by participating in the SAE seminar ID# 93006 - “Finite Element Analysis for Design Engineers” or through equivalent work experience.

Topical Outline
DAY ONE • Structure vs. Mechanism • Fundamental Assumptions in the FEA • Veriﬁcation and Validation of FEA Results • Modal Analysis • Convergence of frequencies • Rigid body modes • Properties of lower and higher modes • Eigenvalues and eigenvectors • Modal superposition method • Modes separation • Modeling techniques in modal analysis

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Catalog Key

Instructor-led programs

Online courses

ACTAR approved

Part of a Certiﬁcate Program Curriculum
SAE Professional Development Resource Guide 2013

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