The Eigen Frequency Research on the Vibration of Rectangular Aluminum Honeycomb Sandwich Plates

Huang Xiao-qiang; Long Jian-jun

doi:10.3969/j.issn.1007-7162.2012.04.007

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The Eigen Frequency Research on the Vibration of Rectangular Aluminum Honeycomb Sandwich Plates

更新时间：2026-05-27

- The Eigen Frequency Research on the Vibration of Rectangular Aluminum Honeycomb Sandwich Plates
- Vol. 29, Issue 4, Pages: 33-38(2012)
- 作者机构：
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- DOI：10.3969/j.issn.1007-7162.2012.04.007
  CLC：
- Online First：25 December 2012，
  
  Published：2012
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黄晓强, 龙建军. 矩形铝蜂窝夹层板振动本征频率实验研究[J]. 广东工业大学学报, 2012, 29(4): 33-38.

Huang Xiao-qiang, Long Jian-jun. The Eigen Frequency Research on the Vibration of Rectangular Aluminum Honeycomb Sandwich Plates[J]. 2012, 29(4): 33-38.
黄晓强, 龙建军. 矩形铝蜂窝夹层板振动本征频率实验研究[J]. 广东工业大学学报, 2012, 29(4): 33-38. DOI： 10.3969/j.issn.1007-7162.2012.04.007.

Huang Xiao-qiang, Long Jian-jun. The Eigen Frequency Research on the Vibration of Rectangular Aluminum Honeycomb Sandwich Plates[J]. 2012, 29(4): 33-38. DOI： 10.3969/j.issn.1007-7162.2012.04.007.

摘要

运用等效理论对矩形镍铬钢薄板和铝蜂窝夹层板弯曲振动进行分析，并通过实验验证：辐射板的最低本征频率正相关于换能器的起始发射频率，辐射板的模态密度正相关于换能器带宽.采用铝蜂窝夹层板作为辐射板的超声换能器，在5 V的信号激励下，起振频率为15 kHz，带宽为15~45 kHz，辐射声压级为95 dB，声压级起伏不超过±5 dB.而且具有薄型的优点，厚度不大于2 mm，辐射面积不大于500 mm

，水平辐射声压级无指向性.

Abstract

The equivalent theory was used to analyze the flexural vibration of the nickel steel plate and the aluminum honeycomb sandwich plate. Experimental research proves that the lowest eigen frequency of the plate is proportional to the start transmitting frequency of transducers

and the modal density of the plate is proportional to the bandwidth of transducers. A ultrasonic transducer has been designed with an aluminum sandwich plate: under the 5 V signal

the start transmitting frequency is 15kHz

the bandwidth is 15~45 kHz

the sound pressure level is 95 dB，and the fluctuation of SPL is less than 5dB. However

the transducer is thin

the thickness is less than 2mm

the transmitting area is less than 500 mm

and the transmitting sound signal is omnidirectional.

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