Optimization of Trim Component and Reduction of the Road Noise Transmission Based on Finite Element Methods

Guellec, Antoine; Cabrol, Marie; Jacqmot, Jonathan; Nieuwenhof, Benoı̂t Van den

doi:10.4271/2018-01-1547

Cited by 7 publications

(3 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As mentioned before, the sheer number of material parameters influencing the Biot-model, as well as their frequency dependency can introduce large discrepancies into simulations, and possibly with more correctly set values, this calculation could also arrive at a better conclusion. The built-in capabilities of MSC Actran for poroelastic modelling were used by Guellec et al [31] to perform trim element optimization on a passenger car. As the most recent published work on the FEM-PEM topic, it contains the latest simulation results obtained for a trimmed vehicle setup with floor insulator carpet.…”

Section: Biot-theory In Finite Element Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Review of Finite Element Vehicle Interior Acoustic Simulations Including Porous Materials

Kun

Feszty

2019

Acta Tech Jaur

View full text Add to dashboard Cite

Recent trends in vehicle engineering require manufacturers to develop products with highly refined noise, vibration and harshness levels. The use of trim elements, which can be described as Poroelastic materials (PEM), are key to achieve quiet interiors. Finite Element Methods (FEM) provide established solutions to simple acoustic problems. However, the inclusion of poroelastic materials, especially at higher frequencies, proves to be a difficult issue to overcome. The goal of this paper was to summarize the state-of-the-art solutions to acoustic challenges involving FEM-PEM simulation methods. This involves investigation of measurement and simulation campaigns both on industrial and fundamental academic research levels.

show abstract

Section: Biot-theory In Finite Element Methodsmentioning

confidence: 99%

“…: Trim optimization results showing baseline (light blue), acoustically optimized (dark blue) and minimal mass (black) trim packages[31] …”

mentioning

confidence: 99%

Review of Finite Element Vehicle Interior Acoustic Simulations Including Porous Materials

Kun

Feszty

2019

Acta Tech Jaur

View full text Add to dashboard Cite

show abstract

“…Guellec et at. [6] performed a complete trim package optimization for a passenger car floor panel in a two-phase design process. In the first step, they used a topology optimization algorithm to modify the beads and embossments of the panel.…”

Section: Literature Reviewmentioning

confidence: 99%

Optimization of damping pad distribution on body-in-white car structure

Sipos¹,

Treszkai²,

Feszty³

2022

J. vibroeng.

View full text Add to dashboard Cite

Structure-born noise is one of the most important contributors to the interior noise in a vehicle cabin. This can be effectively reduced by placing damping pads with special material properties along the chassis and on the large, radiating panels. This paper proposes a new methodology for the optimization of placing these pads as a part of a full vehicle acoustic simulation in Actran Virtual SEA. With this new strategy, it was possible to reduce the among of damping pads on a real car structure by 33 % while keeping the same acoustic performance. This was validated by investigating the mean velocity of the floor panel in two load cases and compared to the original damping pad layout to the optimized one.

show abstract

Prediction and Optimization of Full-Vehicle Road Noise Based on Random Response Analysis

Cao

Meng

Zhao

et al. 2021

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

Based on the theory of random response analysis, a road noise prediction method is proposed. A finite element model of acoustic-structure coupling for the full-vehicle was established, and the road surface texture measured in the actual vehicle test was converted into a power spectrum, which is the excitation of FE model. Under the conditions of coast down from 80km/h to 20km/h on Belgian pavement, the prediction of road noise in the 20- 200Hz frequency band was achieved. The driver’s ear sound pressure obtained from the simulation is in good agreement with the test results, which verifies the effectiveness of the simulation model and prediction method. The sensitivity of the driver’s ear-side sound pressure level to the stiffness of the suspension mounts was further analysed. The stiffness of the bushings that had a large impact was determined. The Response Surface Methodology was used to optimize road noise. The results show that the average sound pressure level near the driver’s ear is reduced by 1.81 dBA. The simulation analysis and optimization methods introduced in this paper can provide a reference for the virtual development process of vehicle road noise.

show abstract

Optimization of Trim Component and Reduction of the Road Noise Transmission Based on Finite Element Methods

Cited by 7 publications

References 5 publications

Review of Finite Element Vehicle Interior Acoustic Simulations Including Porous Materials

Review of Finite Element Vehicle Interior Acoustic Simulations Including Porous Materials

Optimization of damping pad distribution on body-in-white car structure

Prediction and Optimization of Full-Vehicle Road Noise Based on Random Response Analysis

Contact Info

Product

Resources

About