LI Hui， LIU Ying， WANG Yu， SUN Wei. A Calibration Method on Base Excitation Amplitude of Piezoelectric Ceramic Exciter[J]. Journal of Northeastern University Natural Science, 2015, 36(6): 832-837.
[1]Chu X，Ma L，Li L.A disk-pivot structure micro piezoelectric actuator using vibration mode［J］.Ultrasonics，2006，44:561-564. [2]Damjanovic D，Newnham R.Electrostrictive and piezoelectric materials for actuator applications［J］.Journal of Intelligent Material Systems and Structures，1992，3(2):190-208. [3]张益松，刘敏姗，伊立言.压电陶瓷片在振动试验中的应用［J］.实验力学，1987，2(2):90-94.(Zhang Yi-song，Liu Min-shan，Yi Li-yan.The application of piezoelectric ceramic flakes in vibration test ［J］.Journal of Experimental Mechanics，1987，2(2):90-94.) [4]林立，何祚镛.有限长、多层复合圆柱壳减振特性的研究［J］.振动工程学报，1991，4(1):52-64.(Lin li，He Zuo-yong.Study of the behavior in reduction of vibration and sound of composite shells ［J］.Journal of Vibration Engineering，1991，4(1):52-64.) [5]Ivancic F，Palazotto A.Experimental considerations for determining the damping coefficients of hard coatings［J］.Journal of Aerospace Engineering，2005，18(1):8-17. [6]黄爱萍.轮盘振动特性试验及共振转速特性分析［J］.测控技术，2007，26(4):14-15.(Huang Ai-ping.Test of vibration character and analysis of resonance speed character for disk［J］.Measurement & Control Technology，2007，26(4):14-15.) [7]Ewins D J.Modal testing:theory，practice and application［M］.Baldock:Research Studies Press，2000:78-99 [8]Pellicano F.Dynamic instability of a circular cylindrical shell carrying a top mass under base excitation experiments and theory［J］.International Journal of Solids and Structures，2011，48(3/4):408-427. [9]Hou Y L，Yao J T，Zeng D X，et al.Development and calibration of a hyperstatic six-component force/torque sensor［J］.Chinese Journal of Mechanical Engineering，2009，22(4):505-513. [10]Clough R W，Penzien J.Dynamics of structures［M］.Berkeley:Computers & Structures Inc，1995:369-370.(上接第822页)3结论NaCl质量分数从3.5%增加至10%，自腐蚀电流密度从8.223×10-7A/cm2减小至1.129×10-7A/cm2，在自然条件下浓度高腐蚀倾向小，而发生腐蚀后，高浓度会促进腐蚀.1) 随氢离子浓度的增加，20Cr9Ni5Co14钢的致钝电位和过钝化电位增加，而且在酸性条件下出现二次钝化现象，这表明20Cr9Ni5Co14钢具有良好的耐酸性能.2) 20Cr9Ni5Co14钢腐蚀产物电阻和线性极化电阻随着氢离子浓度增加而减小，而自腐蚀电流随着氢离子浓度增加呈线性增加，且维钝电流密度随着氢离子浓度增加而增加；20Cr9Ni5Co14钢随着氢离子浓度的增加，耐腐蚀性能下降.3) 在pH值高于3时，20Cr9Ni5Co14钢的电化学腐蚀过程主要由电化学极化控制，而当pH值达到2时，其电化学腐蚀过程转变为浓差极化控制.4) 20Cr9Ni5Co14钢腐蚀是从点蚀开始的.
