single mass system 中文意思是什麼
single mass system
解釋
單體系-
So this base isolation technique has profound prospects. unfortunately there exist definite difficulties in the calculation because of the nonlinear of the base friction force. now, both the equivalent damping method and the numerical calculatin of the vibration response of the base - isolated buildings are frequently used in the calculation of the seismic response of the base - isolated building. however both of them have certain drawbacks. in this paper, the response of the building with base - isolation system is derived by the method of fourier expansion for the friction force and the earthquake response. at the same time, the sliding vibration character of inertia of a single mass structure and the sliding vibration response of a muti - mass structure are discussed. the stable condition of the sliding base isolation system of a structure is given. in the end, two circes of base fixation and base sliding are analyzed by adopting ansys
本文利用對摩擦力和地震響應進行付氏級數展開的方法導出了基底具有摩擦隔震系統的地震反應。同時，文中從研究單質點結構的滑動振動慣性力入手，進而對多質點結構體系滑動振動反應進行探討，分別給出了結構滑動隔震的自身穩定條件。最後，本文利用ansys對基礎固定和基礎滑移隔震兩種工況進行了動力模擬模擬分析，進一步證實了基礎滑移隔規律。 -
Strip - shape underground structures such as the tunnels and tubes for various uses can be treated as a beam on elastic foundation under earthquake condition ， although there exists soil - structure interaction ， the foundation soil vibration is dominant in other words ， analysis of earthquake response of the soil is essential to this end ， simplified models ， ( i. e equivalent mass system models based on some equivalence criteria ) are proposed ， instead of a general 3 - d continuum model in this study ， equivalence criteria are proposed and the simplified models are compared the single - mass - string model is proved to be valid and therefore applied to the analysis of earthquake response of the pearl river immersed tunnel
條裝地下結構如隧道、各種埋設管道等一般可看作彈性地基梁進行靜力及動力分析在地震條件下，結構與土相互作用，但土的振動成為主要因素為分析土的地震響應需把基土這一三維連續體作簡化處理，簡化成為等效多質點模型本文著重探討這種簡化模型的建立方法，推導等效方程，通過幾種簡化體系的分析比較，論證單質點串體系的合理性，並將其應用到廣州黃沙芳村珠江水下隧道工程的地震響應分析，為抗震設計提供依據 -
Design, supply, delivery, installation, commissioning, maintenance of hardware, software and related services for the implementation of the automated passenger clearance system and automated vehicle clearance system at new control points for the immigration department supply of 13 000 reams of woodfree printing paper, white, 100 gsm, 635x889 mm, long grain to the printing division of government logistics department from date of acceptance to fulfillment of contractual obligations supply of single - ply and multi - ply continuous stationery to the government logistics department as a 12 - month contract from date of acceptance, with an option for the government to extend for further 12 months supply of hard cover books to the government logistics department as a 12 - month contract from date of acceptance, with an option for the government to extend for further 12 months supply and installation of chromatograph - tandem mass spectrometer system for agriculture, fisheries and conservation department from date of acceptance to fulfillment of contractual obligations
承投為入境事務處于新管制站推行旅客自助出入境檢查系統和車輛（司機）自助出入境檢查系統供應硬體和軟體，包括設計、送貨、安裝、試機、保養及有關服務為政府物流服務署印務科供應13000令100克平方米635x889毫米白色長紋道林紙（書紙） ，由發出接納書當日至履行合約訂明的責任為止為政府物流服務署供應單層及多層連續的文具紙張，合約由發出接納書日期開始，為期12個月，政府可選擇再延長12個月為政府物流服務署供應精裝書籍，合約由發出接納書日期開始，為期12個月，政府可選擇再延長12個月為漁農自然護理署供應和安裝色譜- -串聯質譜儀，由發出接納書當日至履行合約訂明的責任為止 -
This paper deals with seismic response of a tunnel - soil system immersed tunnel ， as an underground structure ， must be compatible with the deformation of the surrounding soil thus the simplified model for a tunnel - soil system is established through two steps at the first step ， an mdof system is developed for modeling the foundation soil to this end ， dynamic behavior of the foundation soil is analyzed a typical section of the foundation soil simplified as a single mass - spring system on the basis of some equivalent criteria those mass are linked longitudinally by elastic springs to form an mdof system at the second step ， the tunnel is treated as a beam on elastic foundation ; that is ， the tunnel is connected with the soil massed to form a tunnel - soil system this model has been applied to the seismic analysis of huangsha fangcun immersed tunnel across the pearl river in guangzhou design recommendation is proposed on the basis of this analysis
研究沉管隧道在地震條件下整體受力的分析方法分兩步建立計算模型第一步通過分析場地地基土切片的動力特性，根據等效原則將其化為等效單質點體系，然後在縱向用等效彈簧連接而成為多質點體系的地基土計算模型；第二步將隧道看作彈性地基梁與上述多質點體系通過等效彈簧連結而得到土隧道體系的計算模型本文結合廣州黃沙芳村珠江水下隧道工程實例建立了具體的計算模型並對多種不同的約束條件，進行了縱向與橫向地震響應時程分析，為該隧道的抗震設計提供依據 -
With the development of mass media, the media controlling system itself is undergoing a period of adjustments and transformation : from a single subject ' s unified controlling structure gradually to multi - subjects " multi - layer unified system
伴隨著新聞改革由表及裡、由淺入深的發展，傳媒調控機制本身也在經歷著一個調整與轉換的過程：由單一主體的一元化控制結構逐漸向多元主體的一元多層式調控結構轉變。 -
With the development of financial system reform, the process of stated banks commercializing is quickening day after day. the competition between commercial banks in china also experienced a period from mass to standard and from single to comprehensive
隨著金融體制改革的深入，國有銀行商業化的進程逐漸加快，我國商業銀行之間的競爭也經歷了一個由混亂到規范，由單一到全面的過程。 -
In the flight experiment of aircraft, the mass data acquisition, storage and transfer is always one important part of system, especially for the measurement of parameters such as temperature and pressure of cockpit. in order to meet these needs, we design this simultaneous data acquisition system with multi - channel and large - capacity, which is based on single chip microprocessor and usb interface. it overcomes some shortcomings of traditional devices such as : big size, short work time, small memory capacity etc. it also has many advantages of high speed, low power dissipation, ease - of - use, ease to expand port, supporting plug - play, low - cost etc, so it will be used very widely
在飛機的飛行試驗中，海量數據的採集、存儲和傳輸一直是系統非常重要的一部分，尤其是對飛行員駕駛艙環境控制系統的溫度、壓力等參數的測量來說更是如此。本文根據課題實際需要，研製的基於單片機和usb介面的多通道、大容量、便攜式數據採集系統，克服了現有設備體積大、工作時間短、存儲容量小等缺點。同時，本系統還具有功耗低、速度快、使用方便靈活、易於擴展、支持即插即用、成本低廉等一系列優點，具有廣泛的應用前景。 -
As single source supplier and system integrator, it combines in its transportation systems business seg - ments automation & power, rolling stock, turnkey systems and integrated services all the expertise neces - sary to cover the spectrum from signaling and control systems to traction power supplies, as well as rolling stock for mass transit, regional and main line services
作為全套系統供應商和系統集成商，西門子交通技術集團的四大業務部門? ?自動化與供電，機車車輛，交鑰匙系統和綜合服務，其產品范圍涵蓋了從信號與控制系統到牽引供電，以及城軌、市郊和鐵路干線運輸車輛的各個領域。 -
Since a mass of the deterministic and probabilistic information and knowledge must be handled to research the open system, and the single qualitative explanation or the single model can not deal with them entirely, a method integrating the qualitative with the quantitative should be employed
由於研究開放的系統必須處理大量的信息和知識，這些信息和知識既包含確定性的，又包含隨機性的，單一的定性解釋或單一的數學模型都無法完全地處理和利用它們，宜採用從定性到定量的綜合集成方法。 -
Two conclusions about suspending control system are given in this paper : 1. the single suspending system controlled by parameter self - turning control algorithm has better performance when the mass of single point suspending system, the resistance of electromagnet and the suspending gap are variable ; 2. the single suspending system controlled by global asymptotic stability control algorithm is global asymptotic stability and can restrain the stochastic noise
通過對採用上述控制演算法的懸浮系統的理論分析和模擬研究，主要得到了以下幾方面結論: 1 .當系統懸浮質量、電磁鐵電阻和額定間隙參數變化時，設計的參數自校正控制演算法可使系統的動態性能指標保持在設定的指標; 2 .設計的全局穩定控制演算法，能夠保證二級結構單點懸浮系統的全局漸近穩定，且對隨機噪聲干擾有一定的抑制作用。 -
Firstly, this paper analyzes the characteristic of single piece and the mass material resource consumption in the project manufacture enterprises, and the characteristic of large numbers of stock resource consumption in which, general plan of the cutting stock system for project manufacture enterprises is proposed
首先分析了工程項目型製造企業的單件性、物料消耗大的特徵，和其板材物料資源消耗量大、周期長的特點，提出了面向工程項目型製造企業的板材下料系統的總體方案。
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