Simulation and Experiment of New Ultrasonic Vibration Network

Author:

Chen Xiwen1ORCID,Li Xiaoqian1,Gui Weihua2,Landi Luca

Affiliation:

1. Light Alloy Research Institute, Central South University, Changsha 410083, China

2. School of Information Science and Engineering, Central South University, Changsha 410083, China

Abstract

A reasonable ultrasonic vibration network can improve the casting quality of aluminum alloy. Ultrasonic vibration network based on a honeycomb structure has been designed, referred to as a new vibration network. The new vibration network can solve the problems of nonuniform distribution of power ultrasonic wave, small working area and low volume of ultrasonic vibration network, low efficiency of the frequency spectrum and power spectrum, and poor quality of aluminum alloy casting. The number of vibration nodes can be determined based on the number of layers of the vibration source nodes. The edge length of regular hexagonal honeycomb cells can be determined based on the size of the casting ingot. The output power and resonant frequency of the ultrasonic vibration network can be adjusted in real time according to the status of aluminum alloy melt. A seven-node new ultrasonic network and a four-node ultrasonic network with a traditional structure were selected and used in the experiment and simulation of a 500 mm diameter 2219 aluminum alloy ingot. In comparison with the traditional four-node ultrasonic network, the effective volume and area, frequency spectrum efficiency, and comprehensive coverage probability of the seven-node new ultrasonic vibration network increased by 34.06%, 23.12%, 17.25%, and 0.308, respectively. The difference between the desired value and average efficiency of the power spectrum was 0.292 W/cm2, and the average grain size of aluminum alloy decreased by 34.98 microns. These results indicate that the efficiency of ultrasonic-vibration-assisted casting system and the quality of aluminum alloy casting can be improved using the new ultrasonic vibration network.

Publisher

Hindawi Limited

Subject

Mechanical Engineering,Mechanics of Materials,Geotechnical Engineering and Engineering Geology,Condensed Matter Physics,Civil and Structural Engineering

Reference20 articles.

1. Numerical simulation for 7050 aluminum alloy cast with ultrasonic treatment;Zhang;Materials for Mechanical Engineering,2013

2. Effect of ultrasonic vibration on cooling time and solidification structure of 7050 aluminum alloy melt;Li;Materials Science and Engineering of Powder Metallurgy,2011

3. Effects of ultrasonic on micro-structures and solid solubility of main solute elements in aluminum alloy 7050;Cui;Journal of Central South University (Science and Technology),2012

4. Influence of numerical integration on error of ultrasonic flow meter;Chen;Journal of Xian Jiaotong University,2012

5. Power spectral density compensation algorithm for signal clipping in vibration test;Yan;Journal of Vibration, Measurement & Diagnosis,2015

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3