Preprocessing and Solving Finite Element Analysis for NVH Prediction

Mohamad Helmi Bin Talib; Nurulakmar Abu Husain; Zaidi Farouk Bin Fauzi

doi:10.4028/www.scientific.net/AMM.471.45

Paper Titles

Experimental Investigation of Low Speed Disc Brake Judder Vibration
p.25

Measurement of Vibration Power Flow through Elastomeric Powertrain Mounts in Passenger Car
p.30

A Parallel Study of Vibration Analysis and Acoustic Analysis in Low Frequency Brake Noise
p.35

Application of Feed-Forward Neural Networks for Classifying Acoustics Levels in Vehicle Cabin
p.40

Preprocessing and Solving Finite Element Analysis for NVH Prediction
p.45

The Used of Pedal-Pad Effective Amplitude Transmissibility Value to Predict Size of Comfortable Pedal-Pads
p.52

Measurement of Noise inside the Compartment and Vibration on both Sides of Elastomeric Powertrain Mounts of Passenger Car
p.59

Car Cabin Interior Noise Classification Using Temporal Composite Features and Probabilistic Neural Network Model
p.64

Vibration Strength Estimation of a Structure-Borne Source: Case Study for a Reception Beam
p.69

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 471Preprocessing and Solving Finite Element Analysis...

Preprocessing and Solving Finite Element Analysis for NVH Prediction

Abstract:

Current vehicle development period has become shorter; therefore, virtual testing has been considered as vital to assist design decision at the early stage of the development. Over the last three decades, Finite Element Method (FEM) is widely used to predict the Noise and Vibration level of a vehicle. With the latest technology of Computer Aided Engineering (CAE) simulation, the calculation time taken for NVH analysis can be reduced from few days to only few hours. This paper presents current simulation technique for automotive development using Altair Hyperworks as preprocessing tool for vehicle modeling as well as application of NASTRAN as calculation solver. Normal Mode analysis is conducted on the Trimmed Body to investigate the natural frequency of the steering and the vehicle resonance. The result obtained is comparable with the actual prototype testing result to present the level of correlation. Coupling structural-acoustic analysis also conducted to predict the Noise Transfer Function (NTF) at the driver's ear.

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Periodical:

Applied Mechanics and Materials (Volume 471)

Pages:

45-51

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.471.45

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Online since:

December 2013

Authors:

Mohamad Helmi Bin Talib, Nurulakmar Abu Husain, Zaidi Farouk Bin Fauzi

Keywords:

Modal Analysis, NASTRAN, Transfer Path Analysis, Vibro-Acoustic

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