Multi-objective Optimization of Flat Plate in BV500 Seismic Vibrator based on Topology Optimization and Response Surface Method

Xiaozhen Luo; Zhiqiang Huang; Gang Li

doi:10.54691/hha9q066

Authors

Xiaozhen Luo
Zhiqiang Huang
Gang Li

DOI:

https://doi.org/10.54691/hha9q066

Keywords:

BV500 Seismic Vibrator; Topology Optimization and Response Surface Method; Multi-objective Optimization.

Abstract

Aiming at the problems of low vibration energy down-transmission rate and poor quality of excitation signals of the BV500 seismic vibrator in cement road operation, this paper proposes a new multi-objective optimization strategy based on the synergy of topology optimization (TO) and response surface optimization (RSM), which aims to reduce the mass of the flat plate and improve the stiffness of the flat plate. Topology Optimization allocates the plate material to innovatively design an octagonal I-beam plate, while Response Surface Methodology further corrects and optimizes the structural parameters of the plate. The optimization results show that the mass of the new octagonal I-beam flat plate is reduced by 32.08% and the stiffness is increased by 57.13% compared with the traditional aluminum alloy flat plate. The field test verifies that the new flat plate, under the working conditions of 3-96Hz sweep and single frequency (20/50/80Hz), the maximum enhancement of near-field vibration velocity RMS ( ) is 42.99% (80Hz), and the enhancement of far-field signal is up to 86.30% (50Hz), which significantly improves the efficiency of medium and high-frequency energy transfer. The results show that the new octagonal I-beam flat plate has better excitation performance.

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