impedance head 中文意思是什麼
impedance head
解釋
阻抗式血容量傳感器-
It has a structure of regulated impedance distribution head and screening cover
採用控制式電阻分火頭及屏蔽罩結構。 -
This product is composed of hall sensor assembly and the distributor with ignition timing. compared with conventional distributor, it avoids vacuum advance actuating device and centrifugal advance actuating device. it has a structure of restraint impedance distribution head and screening cover in order to reduce magnetic disturbance caused by engine ignition system, enabling the whole engine system to operate more reliably
該產品由霍爾傳感器總成、帶點火正時觸發輪的分電器構成，與傳統的分電器總成相比，減少了真空提前機構和離心提前機構，為減少發動機點火系統引起的電磁干擾，採用抑止式電阻分火頭及屏蔽罩結構，使整個發動機系統工作更加可靠。 -
Meanwhile, dynamic responses at pile head are investigated. it is sh own that the effects of pile slenderness, bearing stiffness of pile toe and the pile - soil modulus ratio on pile impedance are major whereas the ones of the permeability and the soil reaction coefficient are minor
對影響樁振動特性的主要因素進行了分析，結果表明，長徑比、樁土模量比及樁底支承系數對樁的動力響應影響顯著，而滲透系數作為飽和土的一個重要參數，由於荷載作用時間問題，對樁的動力響應影響較小。 -
With the consideration of the vertical wave effect of soil and soil - pile interaction, an approximate analytical solution to vertical vibration of pile system with variable impedance in visco - elastic layered soil is developed. a simplified and practical mathematical model for interaction between soil layers is proposed, and its applicability is theoretically investigated. based on this model and by using laplace transforms and the transmit property of impedance function, the analytical expression of the impedance function and solutions of the displacement and velocity response function in frequency domain and in time domain at the pile head are derived
4 、從三維軸對稱土模型出發，對考慮樁土耦合作用、土層層間聯系以及樁周土豎向應力梯度變化條件下的成層粘彈性土中完整樁及變阻抗樁系統縱向振動問題進行了研究，提出了成層土中變阻抗樁系統縱向振動問題的近似解析解法和樁周土層層間相互作用的簡化而實用的數學模型，並利用拉氏變換和阻抗函數的傳遞性，獲得了成層土中任意段變阻抗樁樁頂阻抗函數的解析表達式，以及樁頂速度導納和時域速度響應解析解和半解析解。 -
With laplace transforms, the question can be solved in laplace domain. with the aid of impedance transmit functions, an analytical solution for the impedance function in laplace domain is yielded, so is the corresponding analytical solution for the impedance function in frequency domain, semi - analytical solution of velocity response in time - domain subjected to a semi - sine exciting force and mobility at the level of the pile head
利用拉普拉斯變換，將定解問題轉化到拉普拉斯域內求解，結合阻抗函數的傳遞性，得到了拉普拉斯域內的樁頂阻抗函數解析解，進而得到了頻域內的樁頂阻抗函數解析解、半正弦脈沖激振力作用下的速度時域響應半解析解和速度導納。 -
Finally, dynamic compliances of a pile with variable impedance embedded in layered saturated soil are studied. a simplified layered model is put forward on the basis of the single layer elastic bearing model. by using the same method, analytical solutions in frequency domain hence semi - analytical solutions in time domain representing the dynamic responses at pile head are obtained
基於土層層問相互作用，提出了飽和成層土中任意變阻抗樁的縱向振動問題簡化層間模型，利用單層土中提出的解析方法，基於這一簡化層間模型，求得飽和成層土中任意段變阻抗樁的樁頂頻域解析解和時域響應半解析解，並論證了模型的合理性。 -
The results show that not only variations of pile impedance but also parameters of soil layer can make effects on the dynamic compliances at pile head. the coupled soil - pile dynamic interaction model and the corresponding
研究表明，不僅樁身變阻抗特性會對樁的動力響應產生影響，土層參數的變化也會產生相應的影響。
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