Resonance vibrations of buried landmines

Resonance behavior of many types of landmines was first experimentally discovered in 2000 (Donskoy et al. in Proceedings of SPIE Vol. 4394, pp. 575-582, 2001). Laboratory studies and field tests have shown that mine’s resonance response is a complex phenomenon dependent upon interaction between soil and mines and their respective properties. Although the resonance effect was successfully used by various research teams for detection of landmines, there were no thorough studies on various factors influencing buried mine's resonance response. This paper presents results of theoretical and experimental investigation of this problem including multi-modal structure of mine's vibration response, effect of burial depth and soil condition. In the modeling efforts we considered multiple modes of vibration of mine casing and represented them as oscillators with effective parameters. This approach allowed for simplification of analysis and expanding existing lump-element model to account for multiple vibration modes. The experimental tests were focused on studying the effects of burial depth and soil moisture content on resonance behavior of soil-mine system. The tests have shown that a resonance frequency initially decreases with burial depth, as expected. However, an anomalous resonance frequency increase was observed at greater depths; soil moisture even further increases the resonance frequency.

[1]  James M. Sabatier,et al.  Nonlinear tuning curve vibration response of a buried landmine , 2003, SPIE Defense + Commercial Sensing.

[2]  Ning Xiang,et al.  Linear and nonlinear acoustic velocity profiles over buried land mines , 2002, SPIE Defense + Commercial Sensing.

[3]  Dmitri M. Donskoy.  Nonlinear seismo-acoustic technique for land mine detection and discrimination , 1998 .

[4]  Waymond R. Scott,et al.  Field testing and development of a seismic landmine detection system , 2003, SPIE Defense + Commercial Sensing.

[5]  Dmitri M. Donskoy.  Nonlinear vibro-acoustic technique for land mine detection , 1998, Defense, Security, and Sensing.

[6]  Raman K. Mehra,et al.  Acoustic-seismic mine detection based on spatial-spectral distribution of poles , 2003, SPIE Defense + Commercial Sensing.

[7]  Andrei Zagrai,et al.  Structural vibrations of buried land mines , 2005 .

[8]  Andrei Zagrai,et al.  Nonlinear vibrations of buried landmines. , 2005, The Journal of the Acoustical Society of America.

[9]  Nikolay Sedunov,et al.  Nonlinear seismo-acoustic land mine detection: field test , 2002, SPIE Defense + Commercial Sensing.

[10]  Doru Velea,et al.  Comparision of measured versus predicted buried mine resonant behavior , 2003, SPIE Defense + Commercial Sensing.

[11]  H. M. A. Schleijpen,et al.  Sound wave and laser excitation for acousto-optical landmine detection , 2003, SPIE Defense + Commercial Sensing.

[12]  Waymond R. Scott,et al.  Resonance behavior of buried landmines , 2001, SPIE Defense + Commercial Sensing.

[13]  Nikolay Sedunov,et al.  Nonlinear seismo-acoustic land mine detection and discrimination. , 2002, The Journal of the Acoustical Society of America.

[14]  Arthur W. Leissa,et al.  Vibration of Plates , 2021, Solid Acoustic Waves and Vibration.

[15]  Eugen J. Skudrzyk,et al.  Simple and Complex Vibratory Systems , 1969 .