empiric design 中文意思是什麼
empiric design
解釋
經驗設計-
However, it lacks runoff data in absolutely most areas where culvert and small bridge locate. some traditional design method, such as the methods of statistic zone parameter, modification by catchment area, rainfall - runoff, reasoning formula and empiric equation et al, are used to estimate flood flow through culvert or bridge
然而，絕大多數中小橋涵所在地卻沒有可利用的徑流資料，通常採用統計分區法，面積改正法、暴雨徑流法、推理公式和經驗公式等傳統設計方法，這些方法一般比較繁瑣、精度較低、設計的流量偏大，導致工程造價偏高而浪費資金。 -
Abstract : the course - keeping ability of a naval patrol ship in following waves is analyzed by means of a practical approach consisting of semi - captive model test, semi - empiric numeric modeling, and numerical simulation. the assessment result in the form of stability border can then be applied for comparative study of different design concepts and as well for development of operation guideline
文摘:本文用半約束模型試驗技術、半經驗數值模型和數值模擬實用方法分析了一艘巡邏艇在隨浪中的航向保持能力.並給出了以穩性界限形式表示的評估結果，它可適用於不同設計概念的比較研究以及工作指南的開發 -
The efforts to be shown in the paper include : building on the mathematics model of electro - hydraulic shaking table, after the analysis of the dynamic characteristics of electro - hydraulic shaking table the conclusion that it is essentially non - linear is drawn ; according to the aforementioned characteristics and with the view to the actual research object, we present the outline of the system design and criteria of the electro - hydraulic shaking table servo - controller ; due to the research object we practically work over two control strategies and correspondingly scheme out two controllers, which is pid controller and human simulating intelligent controller based on ziegler - nichols parameters - adjust empiric formula ; we develop electro - hydraulic shaking table servo - controller, constitute entire hardware system platform and accomplish the correspond codes of the software which combine to complement its most functions ; the simulation of the adjust stability of controlling system and servo trailing control has been made by matlab, which compares the simulation results of the behavior of pid controller and human simulating intelligent controller
本文的主要工作包括：從電液伺服控制系統的數學模型入手，對電液伺服控制系統的動態特性進行了分析，得出了其非線性本質的特點；根據電液伺服控制系統的上述特點，結合具體的電液式振動臺研究對象，提出了電液伺服控制系統的設計要點和振動臺伺服控制器的設計指標；結合研究對象，具體研究了控制器的控制策略，設計了兩類控制器，即基於ziegler - nichols參數整定經驗公式的pid控制器和仿人智能控制器；開發了電液式振動臺伺服控制器，建立了完整的硬體系統平臺並完成了相應軟體的編寫，實現了主要的控制功能；對控制系統的穩定調節控制和伺服跟蹤控制進行了matlab數字模擬，對pid控制器和仿人智能控制器的控制行為分別進行了模擬實驗並做了比較。
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