Erratum for “Numerical Analysis of Free Longitudinal Vibration of Nonuniform Rods: Discrete Singular Convolution Approach” by Mohammad Shokrollahi and Amir Zayeri Baghlani Nejad

2015 ◽  
Vol 141 (12) ◽  
pp. 08215007
Author(s):  
Mohammad Shokrollahi ◽  
Amir Zayeri Baghlani Nejad
Keyword(s):  
Numerical Analysis ◽  
Longitudinal Vibration ◽  
Discrete Singular Convolution ◽  
Convolution Approach

Design of Longitudinal-Torsional Vibration Stepped Horn with Multiple Diagonal Slits

2013 ◽  
Vol 312 ◽  
pp. 51-54 ◽  
Author(s):  
Chuan Shao Liu ◽  
Hao Qiong Wu ◽  
Ao Mei Luo
Keyword(s):  
Numerical Analysis ◽  
Resonant Frequency ◽  
Torsional Vibration ◽  
Longitudinal Vibration ◽  
Structural Parameters ◽  
Acoustic Propagation ◽  
Ultrasonic Machining ◽  
Acoustic System ◽  
Analysis Method ◽  
Numerical Analysis Method

Based on the theory of acoustic propagation, the realization mechanism of longitudinal-torsional vibration (LTV) by converter of cylinder with multiple diagonal slits (MDS) under single excitation was studied. The influences of composite stepped horns structural parameters on resonant frequency were studied by numerical analysis method, and the horn (resonant frequency about 20kHz) with LTV was designed. The results show that LTV could be realized under single excitation of longitudinal vibration when resonant frequency is 20498Hz, and the amplitude varied periodically. The results can be applied in the design of acoustic system in ultrasonic machining with LTV.

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