查詢結果分析
來源資料
相關文獻
- 多自由度結構系統輸入負荷之反向估測
- Using the Inverse Method for Estimating External Forces from Structural System
- Investigation of Input Forces Estimation of a Cantilever Beam Including the Consideration of Nonlinearity
- p-Version Space-Time Least-Squares Finite-Element Method for Shallow-Water Equations
- 臺灣的工資差異: 1941-43年的實證
- 影像識別技術在晶粒取放機定位系統之應用
- 多元排序性Probit的估計: 個體資料法
- 類神經模糊推論模式在水文系統之研究
- Compariosn of Three GPS-Based Attitude Determination Algorithms
- 部分排序在有測量誤差的共變異數分析的應用
頁籤選單縮合
題 名 | 多自由度結構系統輸入負荷之反向估測=Estimation of Excitation Forces of Multiple Degrees of Freedom Systems by an Inverse Method |
---|---|
作 者 | 張哲銘; 馬志高; 林東成; | 書刊名 | 中正嶺學報 |
卷 期 | 28:2 2000.03[民89.03] |
頁 次 | 頁87-96 |
分類號 | 444.63 |
關鍵詞 | 卡爾曼濾波器; 最小平方法; 負荷估測; Kalman filter; Least squares algorithm; Force estimation; |
語 文 | 中文(Chinese) |
中文摘要 | 本文應用一輸入估測法則,針對多自由度結構系統進行輸入負荷之反向估算,此 輸入法則係由卡爾曼濾波器與一遞迴式最小平方法結合而成。文中以一具有十一個自由度之 集中質量結構系統為例,首先對此結構系統分別施以週期、暫態衝擊、連續衝擊及隨機等型 態之輸入負荷,然後利用此系統之輸出反應反向估測其相對之輸入負荷,其中並考慮系統模 式雜訊及量測雜訊對估測結果的影響。由數值模擬結果顯示,此估測方法對於多自由度結構 系統輸入負荷之估測,具有高度的可行性且精確度非常良好。 |
英文摘要 | This work presents an application of the Kalman filter with a recursive estimator to determine the excitation forces oftructures with multiple degrees of freedom. The forces were estimated from the measured dynamic responses through an inverse method. The estimator employed a least squares algorithm to compute the magnitudes and, therefore, the onset time histories of the forces. The practicability and accuracy of the proposed method were verified by numerical simulations from which the input forces of an 11 DOF lumped-mass system were estimated from the output responses. In the numerical experiment, the system was subjected to four types of input forces, i.e., sinusoidal, impulse, a series of impulses and random. The estimation results are qualitatively and quantitatively good in all cases tested. |
本系統中英文摘要資訊取自各篇刊載內容。