Transmission Side Cover Design Optimization for NVH Part 2: Geometric Optimization Studies

Chung, Chih‐Hung; Steyer, Glen; Brassow, Brian

doi:10.4271/972025

Cited by 3 publications

(1 citation statement)

References 2 publications

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“…The curvature of a shell increases rigidity by transferring transverse loads to axial (in-plane) stresses. Most research has focused on single or double curved shells with only a single inflection point per degree of curvature [1][2][3][4][5][6][7][8][9]. More important to this research is the behavior of two-dimensionally curved panels with multiple inflection points, or cores with multi-dimensional characteristics.…”

Section: Introductionmentioning

confidence: 99%

Design of Two-Dimensionally Curved Panels for Sandwich Cores

O'Sullivan¹,

Slocum

2003

Jnl of Sandwich Structures & Materials

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Alternatives to honeycomb and corrugated core sandwich designs are explored to provide inexpensive and comparable performing sub-laminates that can be easily manufactured into more complex shapes. The core designs utilize two-dimensionally curved1 panels that can be manufactured using common manufacturing methods such as rolling, thermoforming, and stamping. The panels are designed using mathematical formulas and algorithms to provide quasi-isotropic behavior in bending. Experimental results indicate that these designs can provide comparable performance to honeycomb core laminates.

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Section: Introductionmentioning

confidence: 99%

Design of Two-Dimensionally Curved Panels for Sandwich Cores

O'Sullivan¹,

Slocum

2003

Jnl of Sandwich Structures & Materials

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Application of an Instrumental and Computational Approach for Improving the Vibration Behavior of Structural Panels Using a Lightweight Multilayer Composite

Sánchez

García

Pérez

et al. 2014

Sensors

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This work presents a hybrid (experimental-computational) application for improving the vibration behavior of structural components using a lightweight multilayer composite. The vibration behavior of a flat steel plate has been improved by the gluing of a lightweight composite formed by a core of polyurethane foam and two paper mats placed on its faces. This composite enables the natural frequencies to be increased and the modal density of the plate to be reduced, moving about the natural frequencies of the plate out of excitation range, thereby improving the vibration behavior of the plate. A specific experimental model for measuring the Operating Deflection Shape (ODS) has been developed, which enables an evaluation of the goodness of the natural frequencies obtained with the computational model simulated by the finite element method (FEM). The model of composite + flat steel plate determined by FEM was used to conduct parametric study, and the most influential factors for 1st, 2nd and 3rd mode were identified using a multifactor analysis of variance (Multifactor-ANOVA). The presented results can be easily particularized for other cases, as it may be used in cycles of continuous improvement as well as in the product development at the material, piece, and complete-system levels.

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