Topology Optimization of Passive Constrained Layer Damping with Partial Coverage on Plate

TOPOLOGY OPTIMIZATION OF PERFORATED STEEL PLATE SHEAR WALLS WITH THICK PLATE IN SIMPLE FRAMES

In this paper, topology optimization (TO) is applied to determine the form, size and location of holes for the special form of perforated steel plate shear wall (PSPSW). The proposed model is based on the recently presented particular form of PSPSW that is called the ring-shaped steel plate shear wall. The strain energy is selected as the objective function in the optimization. Simple Isotropic...

Topology optimization of anisotropic constrained damping structures based on ESO method

The topology optimization design of structures with anisotropic constrained damping layers (ACDL) is investigated in present paper. The evolutionary structural optimization (ESO) method is employed to find the optimal layout of ACDL with aim to maximum the modal damping loss factor of the sandwich structure. Modal strain energy (MSE) method is used to calculate the damping loss factor of whole ...

Optimization design method for Constrained Damping layer’s noise reduction based on the Hoff sandwich plate theory

Based on Hoff sandwich plate theory, an analytical method is proposed for predicting the loss factors of constrained damping layer. The application of the current approach in the engineering application of acoustic radiation optimization is examined. Numerical examples regarding isotropic sandwich plate with simply supported boundary conditions are carried out to demonstrate the accuracy and re...

H∞ Control of Active Constrained Layer Damping

Conventional passive constrained layer damping treatments with visco-elastic cores are provided with built-in sensing and actuation capabilities to actively control and enhance their vibration damping characteristics. Two configurations of the resulting hybrid treatment are considered in this paper. In the first configuration the active control and passive operate separately; whereas in the sec...

Active/Passive Control of Sound Radiation from Panels using Constrained Layer Damping