Design of Step-type Ultrasonic Horn with Non-uniform Temperature Distribution

• HORI Junya

  石川工業高等専門学校機械工学科

• KYODEN Tomoaki

  富山高等専門学校商船学科

• KATO Toru

  石川工業高等専門学校機械工学科

• YOSHIOKA Hideaki

  石川工業高等専門学校機械工学科

Bibliographic Information

Other Title

• 非一様温度分布を有するステップ型超音波ホーンの設計

Abstract

A design method of a step-type ultrasonic horn with non-uniform temperature distribution was studied with the aim to apply ultrasonic technologies to high temperature engineering applications. First, an alloy casting system with ultrasonic transmission using the horn was modeled by a theoretical link between heat transfer and sound propagation. Next, the design optimization method of the horn with non-uniform temperature distribution was presented. Based on the method, the characteristic lengths of the step-type horn, x₁ (axial length of small-diameter part), x₂ (axial length of large-diameter part), were calculated by varying design conditions: properties of material, temperature difference, and frequency. Defined by an odd multiple of one-quarter cycle of ultrasonic wave, the value x₁ increased stepwisely with the temperature rise of a specimen. On the other hand, the value x₂ decreased slightly with the temperature rise. Both the lengths x₁ and x₂ were decreased with increasing frequency. It was demonstrated that a machinable ceramic horn can be made compact in the design compared to a duralumin horn.

Journal

• JOURNAL OF JAPAN SOCIETY FOR DESIGN ENGINEERING

  JOURNAL OF JAPAN SOCIETY FOR DESIGN ENGINEERING 56 (1), 35-46, 2021

  Japan Society for Design Engineering

Keywords

• design
• ultrasonic
• horn
• heat transfer
• sound propagation

Details

• CRID: 1391131406295615872
• NII Article ID: 130007966088
• DOI: 10.14953/jjsde.2020.2894
• ISSN: 21889023
• ISSN: 09192948
• Text Lang: ja
• Data Source:
  • JaLC
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed