piezoceramics 中文意思是什麼

piezoceramics 解釋
壓電陶瓷
  1. The influence that the zr / ti ratios have on the ceramic crystal structure and its properties are studied through the research carried out about the relative respects of the fabricated samples. the increase of zr / ti ratio can result in the crystal structure transformation from the tetragonal to the rhombohedral, it can also induce the weakness in the stability of the ceramic crystal structure, for example, the drop in the curie temperature. in order to enhance the relative low mechanical quality factor of pzn - pzt system piezoceramics, component addition pb ( mn1 / 3sb2 / 3 ) o3 ( hereafter abbreviated as pms ) are introduced in to form a new psudo - tetragonal system ceramics

    為獲得具有高的機電耦合系數kp ，高的機械品質因數qm的高性能壓電陶瓷，採用二次合成法制備了不同zr ti比的鈮鋅酸鉛-鋯鈦酸鉛基（ pzn - pzt ）三元系壓電陶瓷材料，研究了zr ti比變化對陶瓷結構和性能的影響規律，發現zr ti比增大除了可以使陶瓷的相結構由四方相向三方相轉化外，還降低了陶瓷的結構的穩定性，使tc溫度下降。
  2. The actuating and sensing abilities for the embedded piezoceramics are discussed in details. consequently, the actuating equations, when piezoceramics work as actuators, and sensing equations, when piezoceramics work as sensors, are derived

    對其作動能力和傳感能力進行了詳細的推導，得到了埋入復合材料梁和板結構中壓電片的壓電作動彎矩方程和壓電傳感方程。
  3. Abstract : on the basis of the theory of controlled phase - changes of piezoceramics, high - temperature polarizing technology makes initial working temperature a little higher than curie temperature of a sample, but the polarization voltage needed is greatly lower than the one needed in normal polarization ( only 1 / 10 - 1 / 5 ). the improved polarizing technology can make polarization more complete

    文摘:壓電陶瓷的高溫極化是利用受控的場致有序化的順電鐵電相變原理，使起始極化溫度略高於樣品的居里溫度，但所需的極化電壓大大低於常規極化，僅為1 / 10 - 1 / 5 ；選擇較高的降溫升壓速率，可使極化趨于更加完全，具有常規極化工藝無可比擬的優越性。
  4. Piezoceramics have been used successfully for many years in the field of vibration control, owning to its high forces into the range of kilo - newtons and short reaction times in the order of a few microseconds

    壓電材料由於其自身的壓電效應和逆壓電效應而被製作成壓電傳感器和壓電驅動器來對結構的振動進行控制。
  5. Two kinds of modeling methods, finite element method ( fem ) and experimental identification methods based on modal analysis theory, are applied to get the models of the dynamic systems. using the finite element model for the composite material structures with piezoceramics embedded and the technique to reduce the number of degrees - of - freedom of fem model, a reduced and appropriate model for online control is also introduced

    通過對埋有壓電作動器和壓電傳感器的智能復合材料結構進行有限單元分析，建立起了結構振動的有限單元模型，並介紹了對有限摘要單元模型進行模型降階的方法，使其適合於對結構的振動進行控制。
  6. ( 3 ). linear quadratic regulation method is used to design the optimal feed back controller for the composite material structures with the piezoceramics embedded

    （ 3 ） .對壓電復合智能材料結構設計了線性二次型最優控制器。
  7. According to the constitutive relationship in linear piezoceramics, elliptical crack problems in impermeable case are analyzed with hypersingular integral equation method

    摘要在線性壓電陶瓷本構關系和裂紋邊界絕緣的框架下，用超奇異積分方程的方法對橢圓類片狀裂紋問題進行了重新研究。
  8. In order to deal with the nonlinearity and hysteresis of piezoceramics, a precise power amplifier circuit with charge - feedback loop was developed. and an electromechanical model of piezoelectric actuator is presented to demonstrate that charge - feedback control is prominently effective to reduce hysteresis, creep and to improve linearity

    本文針對壓電陶瓷存在非線性與滯后的問題，根據電荷反饋原理設計了精密功率放大電路和電荷反饋迴路;建立了壓電作動器的機電模型，證明了電荷反饋控制對于減小回滯現象、提高線性度有明顯的作用。
  9. The early studies are mostly focused on the method of gluing piezoceramics on structural surfaces, which has some disadvantages such as difficulties to protect the ceramics and the connection wires, bad coupling with only one surface glued on the base materials, low signal - to - noise ratio etc. these problems can be solved using the embedded piezoceramics, and furthermore, the piezoceramics can be placed in the optimal positions, especially in the optimal deepness for the piezo - actuators, according to an optimization algorithm befor e they are embedded, so the actuator effects and sensor signals are thereby enhanced

    早期的研究主要集中在表面粘貼壓電片的結構，表面粘貼壓電片具有一些無法克服的缺點。本文著重進行利用埋入復合材料結構的壓電傳感器和壓電驅動器對其振動進行主動控制的相關理論和實驗研究，並介紹其相應結果。埋入型壓電材料的優點主要是能保護壓電傳感器和作動器及其連線、增強壓電材料和基體材料的耦合、優化埋入壓電陶瓷的深度和厚度可增強壓電傳感器的測量信號並提高信噪比等。
  10. This dissertation deals with the active vibration control strategy using the embedded piezoceramics as both actuators and sensors. with several ceramics embedded into the composite material structures during the manufacturing process without knowing the structural behavior in advance, this dissertation makes use of a self identification procedure to get the models of the system. apparently, the on - line self identification method enable people to update the models of system

    另外本文利用埋入復合材料結構中的壓電傳感器和驅動器對其進行模型識別而得出結構的動力學模型，再將該模型用於控制器的設計，這樣做的好處是如果結構本身或者約束、環境等發生變化后，可以很方便地對結構的模型重新進行在線識別，及時更新控制參數，避免控制失效，而且不需要事先知道結構的其它屬性。
  11. The main research work and conclutions are listed as follows. ( 1 ) based on the piezoelectric equation, the actuating and sensing ability for the piezoceramics are discussed in details. the actuating equation and sensing equation are derived when piezoceramics work as both sensors and actuators. the self - sensing actuators are discussed

    本文的主要工作集中在以下幾個方面： （ 1 ）從壓電材料的壓電方程出發，對其作動能力和傳感能力進行了詳細的分析，得到了壓電智能結構中壓電片的作動方程和傳感方程，並對壓電材料傳感作動集成進行了探討。
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