壽命測定計 的英文怎麼說
中文拼音 [shòumìngcèdìngjì]
壽命測定計
英文
life meter- 測 : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
- 定 : Ⅰ形容詞1 (平靜; 穩定) calm; stable 2 (已經確定的; 不改變的) fixed; settled; established Ⅱ動詞...
- 計 : Ⅰ動詞1 (計算) count; compute; calculate; number 2 (設想; 打算) plan; plot Ⅱ名詞1 (測量或計算...
- 測定 : determine; determination; setting-out; admeasurement; assignment; assay; finding
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In this thesis, the oxygen sensitive materials and glucose sensitive materials had been developed by thermo - polymerization method including carrier covalence method and carrier covalence - cross linking method, and the properties had been investigated using the detection experiment of oxygen and spectrophotometer, at the mean time, the applications of oxygen sensitive materials in fiber optical gaseous oxygen sensor and fiber optical dis solved oxygen sensor, and that of biology sensitive materials in fiber optical dextrose sensor had been studied in this paper. major content of this work includes five aspects as follows : ( 1 ). oxygen sensitive materials had been prepared by carrier covalence method, and the preparation mechanism of the materials had been investigated by fi - ir, sem, and the detection experiment of oxygen
本論文主要包括以下五個方面的內容: ( 1 )載體共價法制備氧敏感材料:通過紅外光譜、掃描電鏡圖譜和氧測試實驗探討該氧敏感材料的制備機理,通過氧測試實驗評價該氧敏感材料的氧敏感性和穩定性,同時研究了各種因素對該氧敏感材料性能的影響( 2 )載體共價?交聯法制備氧敏感材料:通過紅外光譜、掃描電鏡圖譜和氧測試實驗探討該氧敏感材料的制備機理,通過氧測試實驗和分光光度計評價該氧敏感材料的氧敏感性和穩定性,同時研究了各種因素對該氧敏感材料性能的影響( 3 )氧敏感材料在光纖氣態氧傳感器中的應用:該傳感器的響應時間為10s ,檢測下限為5ppm ,檢測精度為0 . 5 ,具有較好的重復性和穩定性,遲滯較小,使用壽命至少為1年,適合各種環境下氣態氧濃度的檢測。To overcome the shortage, in this paper, the time parametert is introduced into the structural resistance and load model, and it makes the calculation of the dynamic reliability available. 2
本文在借鑒前人研究成果的基礎上,在結構抗力模型和荷載模型中引入了時間參數t ,提出了一個簡單、實用的動態可靠度計算方法,為後文的可靠性評定,壽命預測奠定了基礎。After generalizing the characteristic of modern equipment, the mission of equipment management and general situation of chinese equipment management, basied on two forms of equipment management - - - - - - practicality & value, the author combined quantitative & qualitative methods with example to analyze and discuss questions, especially the reasonable update & depreciation, accordingly achieving the optimization of the technical efficiency & economic benefit 0 one of emphases of the thesis is methods application of equipment reasonable update, that is starting with economic benefit to looking for reasonable using fixed number of year. the thesis used inferior - converted numeric method and rate equation which based on the theory square and combined with harbor loading machines & tugboat ' s actual facts, calculated the economic life of the same machine in order to make sure harbor machines " reasonable using fixed number of year. at the same time, the author made use of midpoint value regress method and stochastic trapeziform forecast method to calculate and analyze and gain the reasonable conclusion o the other emphases is questions of harbor equipment
本文概括介紹了現代設備的特點、設備管理的任務以及我國設備管理發展的概況后,作者從設備經濟管理的兩種形態? ?實物形態和價值形態出發,採取定量與定性相結合,以定量為主,結合實例進行分析與論述,對港口設備的合理更新與折舊問題進行了著重研究,從而實現設備的技術效能和經濟效益的最優化。本文研究的重點之一是設備合理更新的方法應用,即從經濟效益出發,來尋求設備的合理使用年限。本文結合港口裝卸機械和港作拖輪的實際,運用以正方形理論為基礎的低劣化數值法和費用方程兩種方法,計算了同一種機械設備的經濟壽命,從而確定港機合理的使用年限,同時,運用了中點值回歸法和隨機梯形預測法進行計算和分析,得到了合理的結論。The tested results showed that the collecting ring could be used for the dynamic stress test successfully and the experimental data would be used for determining load spectrum and analyzing fatigue life of spoke plate
結果表明,動態測試過程穩定,所設計和製造的集流環完全滿足試驗要求,測試數據可以用於結構載荷譜的編制和疲勞壽命分析。Based on the current research achievements on durability under chloride environment, probability theory, structural reliability theory, concrete structures theory, neural network theory and structure dynamic theory are employed comprehensively in this dissertation. some problems of durability of reinforced concrete structures under chloride environment were studied through the exploitation of experimental data, the rule of chloride ingress and steel bar corrosion, the performance of corroded member, and residual life prediction. the main issues and results in this dissertation are as follows : 1 、 the probability method for the prediction of durable life based on the stipulated reliability index for concrete structures under chloride environment is presented in this dissertation
本論文在國內外對氯離子侵蝕環境下混凝土結構耐久性研究成果的基礎上,綜合運用概率理論、結構可靠性理論、混凝土結構理論、神經網路理論、結構動力學理論等基本理論和方法,結合實際檢測數據,按照氯離子侵蝕、鋼筋銹蝕、銹蝕構件性能、銹蝕構件壽命預測的思路對氯離子侵蝕環境下鋼筋混凝土結構耐久壽命預測的有關問題進行了深入系統地研究,完成以下主要研究工作並取得相應成果: 1 、提出了氯離子侵蝕下基於規定可靠指標的混凝土結構耐久壽命的概率計算方法。The standard diffusion calculating model is one of the models widely used to predict the concrete construction life in chloride environment, but this model has some limitations
摘要氯離子標準擴散計算模型是氯離子環境下對混凝土結構進行壽命預測時應用最廣泛的模型之一,但該模型存在一定的局限性。The direct analysis method has more efficient than the line programming for the shakedown analysis of contact surface layer, therefore, the mentality of shakedown analysis of contact surface layer was introduced based on the direct analysis method as follows : first, the direct method for shakedown analysis was presented and its application to a two - dimensional rolling / sliding contact problem was demonstrated. the direct method consists of operator split technique, which transforms the elastic - plastic problem into a purely elastic problem and a residual problem with prescribed eigenstrains, and an incremental projection method to determine the eigenstrain
這些方法各有創新,其特點是計算速度快、收斂性好及精度可靠,計算規模避免了彈塑性隨動強化分析的非線性的影響,並使彈塑性問題轉化為殘余問題和線彈性問題,適用於滾動、滾滑及滑動接觸失效分析,從而有效地解決了接觸體安定性分析與裂紋萌生壽命預測的實際問題,也是本文對表面強化接觸失效的安定分析成為可能。In the tranditional predicting methods, the remained life of certain pivotal parts on particular breakdown patten was regarded as the remained life of the whole machine. mathematical statistics was also used to obtain the mean remained life of machinery because of incomprehension on the mechanism of fault development
以往的機械設備剩餘壽命預測方法是預測設備關鍵部件在特定故障損壞模式下的剩餘壽命,以關鍵部件的剩餘壽命作為整機的剩餘壽命,在故障發展機理不是很清楚的情況下,代之以統計學的黑盒模型,估算設備群體的平均壽命。Based the result of calculation and analysis in this paper, it is feasible that predicting of the service life of reinforced concrete component exposed to chloride environment with a probability based method. the result of analysis is consistent with the changing rules of service life in practice. probability based limit state method is used for service prediction. it is more reasonable than a deterministic model and satisfied with the required method of national structure designing uniform code
理論研究和實例分析的結果表明,本文建立的基於概率的極限狀態分析方法的氯離子侵蝕環境下鋼筋混凝土構件耐壽命的預測方法是可行和有效的,計算結華僑大學申請碩十學位論文果反映出工程實際中構件耐久性壽命的變化規律;本文使用的基於概率的極限狀態分析方法比確定性計算方法更科學,與我國現行結構設計規范中所規定的設計思想保持一致。Stress concentration measure on the model of boiler drum with two nozzles was executed and the testing results were compared with the asme criterion, experiential value and the value of finite element method respectively. this measurement result provides direction for evaluation of stress amplitude
設計模擬汽包進行應力測試,並與美國asme規范和經驗公式計算值、有限元計算結果進行比較,為后續的低周疲勞壽命估算時交變應力幅值的確定提供依據。On the basis of collecting and processing many datum and materials. firstly. this paper analyzes main activities and cost constitutions of each stage of the life cycle of a fcs, and lay a foundation for later analysis and evaluation of system lcc. secondly, a basis method and usage range for estimating the system lcc are introduced. a multivariate linear regression model of pcs development cost and cost driven factor is built by use of the parametric method and supplies the base of cost estimation of newly - developed systems. thirdly, combine actual examples and make statistical analysis of lcc of a certain pcs developed by our institute, predict unhappened usage and service cost with grey prediction method, obtain proportion of each constitute to the lcc. forthly, according to actual conditions, use the fuzzy theory to overall evaluate efficacy of the fcs, fifthly, combimng our actual conditions, investigate specific measures of how to implement the life cycle cost management in our institute and put forward a new conception of developing web - based flight control system lcc management information system with pdm as the platform. at last, investigate important factors such as reliability and maintainability that may affect the life cycle cost of the fcs in detail, and put forward specific methods of lowering the life cycle cost of the fcs
論文在收集和整理大量資料的基礎上,首先深入分析了飛控系統壽命周期各階段的主要活動以及各階段的費用構成,為以後系統壽命周期費用的分析和評價奠定了基礎;其次,介紹了壽命周期費用估算的基本方法和使用范圍,並利用參數法建立了飛控系統研製費用與費用驅動因子的多元線性回歸模型,為新研系統的費用估算提供了依據;第三,結合實例對我所研製的某型飛控系統的壽命周期費用進行統計分析,運用灰色預測方法對未發生的使用及維修費用進行預測,得出了該系統的壽命周期費用以及各組成部分所佔比例;第四,根據實際情況,首次運用模糊理論對飛控系統的系統效能進行了綜合評價,構造了飛控系統系統效能模糊綜合評價模型;第五,結合我所實際,探討了如何在本單位實施加強壽命周期費用管理的具體措施,提出以pdm為平臺,開發基於web的飛控系統lcc管理信息系統的新構思;最後,對影響飛控系統壽命周期費用的重要因素如可靠性和維修性等進行了詳細地研究,提出了降低飛控系統壽命周期費用的具體方法。On - line monitoring of hvcb is the precondition of predicting maintenance, is the key element of reliable run, and is the important supplement to the traditional off - line preventive maintenance in fact, the faults are made by hvcb, no matter in number or in times, is over 60 % of total faults so it has determinative importance for improving the reliability of power supply and this can greatly decrease the capital waste used by - dating overhaul in this paper, the inspecting way of hvcb mechanism characteristic is discussed the concept of sub - circuit protector is presented, the scheme that we offered has been combined with sub - circuit integrality monitoring theory, to ensure that it has the two functions as a whole according the shut - off times at rated short circuit given by hvcb manufacturer, the electricity longevity loss can be calculated in each operation, and the remained longevity can be forecast too an indirect way for calculating main touch ' s temperature by using breaker shell temperature, air circumference temperature and breaker ' s heat resistance is improved in this paper, and main touch resistance can be calculated if providing the load current msp430, a new single chip microcomputer made by ti company, is engaged to develop the hardware system of the on - line monitoring device, and special problem brought by the lower supply voltage range of this chip is considered fully
高壓斷路器所造成的事故無論是在次數,還是在事故所造成的停電時間上都占據總量60以上。因此,及時了解斷路器的工作狀態對提高供電可靠性有決定性意義;並可以大大減少盲目定期檢修帶來的資金浪費。本文論述了斷路器機械特性參數監測方法;提出了二次迴路保護器的概念,並將跳、合閘線圈完整性監視和二次迴路保護結合起來,給出具有完整性監視功能的二次迴路保護器實現方案;根據斷路器生產廠家提供的斷路器額定短路電流分斷次數,計算每次分閘對應的觸頭電壽命損耗,預測觸頭電壽命;提出根據斷路器殼體溫度和斷路器周圍空氣溫度結合斷路器熱阻來計算斷路器主觸頭穩態溫升的方法,並根據此時的負荷電流間接計算主觸頭迴路的電阻;在硬體電路設計上,採用美國ti公司最新推出的一種功能強大的單片機msp430 ,並充分考慮該晶元的適用電壓范圍給設計帶來的特殊問題;在通信模塊的設計中,解決了不同工作電壓晶元之間的介面問題,並給出了直接聯接的接線方案。Today how to make an assessment of durability and give a service life prediction have become two urgent tasks in the research of rc structure durability
如何對結構進行科學的耐久性評定和使用壽命預測,為在役結構的維修決策和新建結構的壽命設計提供依據,已成為當今鋼筋混凝土結構耐久性研究的迫切任務。In this thesis, the strain - hardening model of contact surface layer, the numerical theories and computational methods for shakedown analyses of contact body are systematically studied and applied to the aero - gear. the mentality is that the effects of the surface hardening and contact fatigue on contact surface layer under cycle contact loading are investigated by using shakedown analysis methods considering in a quantitative way the details of stress - inelastic strain responses, residual stress and residual strain computations
在國家「航空基金」 、 「總裝預研基金」等課題的資助下,本文以接觸體安定分析與接觸表面層疲勞裂紋萌生壽命預測一般演算法研究為手段,深入、系統研究了接觸體安定分析的數值理論和計算方法,全面研究了影響航空齒輪表面強化層失效的原因並提出了齒輪表面強化層裂紋萌生壽命的預測方法。At, present there are a large quantity of bridges in our country, one hand, many old bridges have approached their design lifetime, their components have aged and be damaged, on the other hand, a number of new and large - scale bridges will be built. to assure these bridges " safety and to avoid accidents, we should get on monitor on - line to new bridges, and detect damage and identify reliability to old bridges
我國橋梁目前現狀是橋梁數量極大,一方面,許多既有橋梁已接近設計壽命,橋梁的老化、損壞現象比較嚴重,另一方面,又有許多新的、大型橋梁結構陸續建成,為保證這些橋梁安全運行、避免嚴重事故發生,需要對新建橋梁進行健康監測、對既有橋梁進行損傷識別和可靠性鑒定。Chapter 2 in the design of sensors and switches based on photoinduced electron transfer, fluorescence was often used with high sensitivity and convenience. it is noteworthy that room temperature phosphorescence ( rtf ) has many advantages over fluorescence, e. g., large stokes shift, higher signal to noise ratio, good selectivity and easily measurable luminescence lifetimes etc., and it can be found as a helpful complementary method of fluorescence sensing
第二章在光誘導電子轉移傳感器和分子開關的設計中,熒光由於其靈敏度高、使用方便,受到人們的廣泛關注,相對于熒光室溫磷光選擇性好、信噪比高、較大的stokes位移、壽命易測定等優點,在許多方面與熒光互補。4. the dynamic reliability theory the structural reliability rating method and the structural residual service life prediction method mentioned above are applied to a simply supported beam bridge in this paper, and the corresponding calculation methods correlated to bridges are formulated
四、本文將上述動態可靠度理論、可靠性評定和剩餘使用壽命預測的方法對簡支梁橋進行探索性應用,得出了橋梁相關方面的計算方法。Abstract : the saturation behavior of stress current is studied. the three types of precursor sites for trap generation are also introduced by fitting method based on first order rate equation. a further investigation by statistics experiments shows that there are definite relationships among time constant of trap generation, the time - to - breakdown, and stress voltage. it also means that the time constant of trap generation can be used to predict oxide lifetime. this method is faster for tddb study compared with usual breakdown experiments
文摘:基於一階速率方程,討論了恆定電壓應力下應力電流的飽和行為.通過對應力電流的擬合,發現存在三類缺陷產生的前身.更進一步的統計實驗顯示,在缺陷產生時間常數、擊穿時間以及應力電壓之間存在著明確的關系.這意味著缺陷產生時間常數能夠被用於有效預測氧化層的壽命.與常規的氧化層擊穿實驗相比,基於缺陷產生時間常數的預測更快、更有效This company, beginning fairly early to develop and manufacture themal protector, ptc started and current relay, has accumulated certain rechnical capability and rich manufacture experience. it boasts advanced manufacture and inspection equipment and device, such as precision punch, precision dryer, energy - reserve welding machine, ampere time characteristics detector, temperature characteristics detector, life test platform and key equipment for part - processing, finished product assembly, finished product inspection and pattern test. to guarantee product quality and expand manufacture capability, a production line has been designed and installed. with the aim of absorbing advanced technology and creating famous brand ted, we are planning to introduce equipment, material and know - how from abroad to satisfy users demand with quality product and excellent service
公司較早開始研製熱保護器電流繼電器及ptc啟動器,對生產熱保護器電流繼電器具備了一定的技術力量和豐富的生產經驗,現有熱保護器及電流繼電器的生產和檢測設備:精密沖床精密乾燥箱儲能焊機安培時間特性檢測儀溫度特性檢測儀壽命檢測臺零件加工成品組裝成品檢測和型式實驗的關鍵設備。並設計製造安裝了生產線,保證了產品質量,擴大了生產能力。為集天下之技術,創tde名牌,準備從國外引進的設備材料和技術。分享友人