Study on radiated sound field of improved flexural vibrating plate;

Vibration and radiated sound field of a circular plate with an arc crack;

Vibration and radiated sound field of a circular plate with a radial crack;

The radiated acoustic field of air coupled high power compound transducers in flexural vibration is studied.

The directivity of acoustic field radiated from ring piston source;

Phased array transducer can realize the conversion between sound wave and electric signal, its characteristic of acoustic field is the most important factor whether the echo information of the inspected area in a specimen can be obtained and utilized effectively, and it is the main basis of designing a phased array.

The vibration and radiation acoustic field of aircoupled transducers in flexural vibration are studied.

Calculation of structural radiation sound field in a semi-infinite region;

Based on the mechanics principle, this paper makes use of finite element method to research the relationship between the degrees of dynamic vibration absorbers and their bandwidth, at the same time research their effect in the radiation-noise-field and designs their actual structures according to the models of analog computation.