振动与冲击
振動與遲擊
진동여충격
JOURNAL OF VIBRATION AND SHOCK
2014年
20期
176-182
,共7页
孔艳平%田若萌%刘金喜
孔豔平%田若萌%劉金喜
공염평%전약맹%류금희
功能梯度材料%压电材料%压磁材料%SH波%频散关系
功能梯度材料%壓電材料%壓磁材料%SH波%頻散關繫
공능제도재료%압전재료%압자재료%SH파%빈산관계
functionally graded material%piezoelectric material%piezomagnetic material%SH wave%dispersion rela-tion
分析功能梯度压电层/压磁半空间结构中SH波传播特性。功能梯度压电材料沿x2方向按指数形式变化，电学边界条件分为电学短路及开路，基于推导的频散方程数值分析功能梯度压电材料的梯度系数、覆层厚度及边界条件对频散关系影响。研究成果可为研制、设计高性能声波器件提供理论参考。
分析功能梯度壓電層/壓磁半空間結構中SH波傳播特性。功能梯度壓電材料沿x2方嚮按指數形式變化，電學邊界條件分為電學短路及開路，基于推導的頻散方程數值分析功能梯度壓電材料的梯度繫數、覆層厚度及邊界條件對頻散關繫影響。研究成果可為研製、設計高性能聲波器件提供理論參攷。
분석공능제도압전층/압자반공간결구중SH파전파특성。공능제도압전재료연x2방향안지수형식변화，전학변계조건분위전학단로급개로，기우추도적빈산방정수치분석공능제도압전재료적제도계수、복층후도급변계조건대빈산관계영향。연구성과가위연제、설계고성능성파기건제공이론삼고。
The propagation of SH waves in the layered plate structure consisting of a functionally graded piezoelectric layer and a piezomagnetic half space was investigated.The property of the functionally graded piezoelectric material was assumed to vary in an exponential form along x2 direction and the electrical boundary condition was taken as short circuit or open.Based on the dispersion equations,numerical examples were presented to show the influence of variations of material properties,piezoelectric layer thickness and electrical boundary on the phase velocity.The resach results can provide theoretical reference to the design of high performance acoustic devices.
