modal testing 中文意思是什麼
modal testing
解釋
模態試驗-
Basing the theory of finite elemental modeling and ansys software, this text build the entitative model and elemental model of the main parts and carry the modal analysis. and we get the natural frequency and shaking type of all steps. and then we compare the analysis results with the results of experimental modal analysis, testing the correctness of the elemental model
本文根據有限元建模理論，並利用ansys有限元分析軟體，分別對螺桿泵地面驅動系統的上述主要部件進行實體建模、有限元建模以及模態分析，確定這些部件的各階固有頻率和振型。 -
In the modal analysis, the similarity laws has been introduced to reduce the error during the assessment of the prototype building ' s natural frequency under the insufficient balance weight testing. by the author ' s theory, the prototype natural frequency can be the same even the balance weight of model is changeable
在模態分析方面，本文利用相似性原理，解決了模態試驗在配重不足時，求解原型結構自振頻率誤差過大的問題，並且得出了在不同配重條件下，試驗模型與原型結構的頻率可以達到一致的相似準數。 -
The modal parameters are the basic data for structure dynamic analysis and vibration control. the methods of modal parameters identification can be cataloged into phase resonance testing ( normal - mode force appropriation ) and phase separation approaches
目前，識別模態參數的方法可分為相位共振法（適調多點激振法）和相位分離法兩種[ 1 ] 。 -
The modal base can make much operation such as calculating the internal force, computing the foundation pressure and bearing capacity, checking the foundation sedimentation, and testing the shear resistance on individual foundation, strip foundation, raft foundation, box foundation, pile foundation and so on
該庫能實現對獨立基礎、條形基礎、筏板基礎、箱型基礎、樁基礎等各種基礎的內力計算、土層承載力確定、地基反力計算、地基變形驗算、軟弱下臥層驗算、基礎配筋等操作。 -
The modal analysis and pseudo dynamic test of the twenty - story building with 1 / 3. 2 scale is the first and the largest size in the same testing field in china by now
本課題進行了12層1 3 . 2比例模型房屋的模態試驗和擬動力試驗，這是迄今為止國內首次對該結構類型進行的擬動力試驗、也是同類試驗中模型最大的。 -
Test engineers with experience in nvh, stress and fatigue testing, instrumentation, data acquisition, and data processing, as well as the modal test experience
噪音和應力疲勞測試工程師必須具備傳感器安裝，數據採集，數據處理，和模態測試的經驗。 -
The overall modal of test - bed for test & control system is built, based on deeply analysis of thermal torpedo ' s power & propelling system in a overall design view. in the paper, the general building of test & control system, the building of all parts " simulation model ( subsystem or module ), testing software designing and rotation rate control designing are discussed mainly
本文在對魚雷熱動力推進系統性能深入研究的基礎上，完成了動力推進系統測控系統試驗臺的研製，包括測控系統總體設計、各模塊模擬模型建立、測試軟體設計及轉速控制器研製等主要內容。 -
At first, of thesis analyse a large amount of domestic and international to study about rotor crack characteristic testing modal research current situationing of analytical method synthetically, has understood existing problem, and studied the direction, the purpose and research contents clearly
首先本論文在綜合分析了大量的國內外關于轉子裂紋特性研究尤其是試驗模態分析方法的研究現狀后，了解了存在的問題，明確了研究方向、研究目的和研究內容。 -
In the paper, both the frequency and spectrum analyses and testing modal analyses have been investigated based on the research achievements of the internal and abroad. data interface software has been developed with the data picking box cras
本文在對機械振動系統的國內外研究現狀進行綜述的基礎上，著重探討了結構動力特性中的頻譜分析和試驗模態分析兩個問題，並結合cras數據採集箱開發研製了數據介面軟體。 -
Testing datas are gathered by using data picking box cras. a general dynamic model for analyzing characters of vibration system has also been developed according to the input and output applied on the testing system. identifications for structure modal parameters and frequency - spectrum characters have been carried out by calling the interface software developed unpon matlab software in both the time field and the frequency field. the structure modal parameters and frequency - spectrum characters have been accurately calculated
利用cras數據採集箱的數據採集功能對系統的信號進行數據採集，通過介面軟體調用matlab軟體平臺，分別針對時間域和頻率域兩種研究方向，解決振動系統模態參數的辯識問題和結構的頻譜特性分析問題，得到系統的相干函數等頻譜特性，獲得模態參數，如模態頻率、阻尼等的精確解。 -
Paper and board - testing of cores - determination of natural frequency and flexural modulus by experimental modal analysis
紙和紙板.芯層試驗.通過試驗模型分析法對自然頻率和彎曲模量的測定 -
Paper and board - testing of cores - part 8 : determination of natural frequency and flexural modulus by experimental modal analysis iso 11093 - 8 : 1997
紙張和紙板.卷軸芯的試驗.第8部分:用實驗模式分析測 -
Nondestructive testing technology includes medium detecting technology and dynamic testing technology which make use of vibration respond of constructure and system dynamic behavior to detect damage in structure. dynamic testing technology is significant not only for the assessing of structures, but also for its economy and convenience, which contains modal parameter identification, extracting and analizing damage indices, determining location of damage, quality assessment and life estimation
無損檢測包括媒介探測技術和振動檢測技術，其中，振動檢測技術利用結構的振動響應和系統動特性參數探測結構損傷，具有經濟、簡便、迅速、可以進行大范圍構件的質量檢測和評定建築結構整體性能等特點，是目前國內外研究的熱點和難點。
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