接觸率試驗 的英文怎麼說

中文拼音 [jiēchùshìyàn]
接觸率試驗 英文
contact-time test
  • : Ⅰ動詞1 (靠近;接觸) come into contact with; come close to 2 (連接; 使連接) connect; join; put ...
  • : Ⅰ動詞1 (接觸) touch; contact 2 (碰; 撞) strike; hit 3 (觸動) touch 4 (感動) move sb ; sti...
  • : 率名詞(比值) rate; ratio; proportion
  • : 名詞(古代占卜用的器具) astrolabe
  • : 動詞1. (察看; 查考) examine; check; test 2. (產生預期的效果) prove effective; produce the expected result
  • 接觸 : 1. (交往) come into contact with; get in touch with 2. (沖突) engage 3. (挨上; 碰著) contact; touch
  • 試驗 : trial; experiment; test
  1. First, a simple discussion for the mechanism about electrostatic atomization of the liquids has been given ; then the paper theoretically analyzed waving course, liquid drop producing course, and the liquid drop diffusing course in electrostatics atomization process., gave an analysis about the methods about carrying charges to the liquid drop, and analyzed that liquid with high electrical conductivity can be carried charges and atomized by electric field, while the isolated liquid with low electrical conductivity can be charged fully with the soakage electrode and inducing charge methods. at last the paper designed and configured the experimental equipment, conducted the atomization experiment to the three liquid medium - kerosene, emulsifier and alcohol under the same environment, handled the experimental results, then summarized the relationship between liquid electrostatic atomization effect and liquid surface tension, electronic conductivity and viscosity, along with the influence of voltage to electrostatic atomization and so on, found out the liquid atomization rule in high voltage electrostatic field

    首先,對液體介質的靜電霧化機理作了初步的探討,理論上分析了液體霧化過程中射流區、波紋區、霧滴區和霧滴擴散區;然後對液體荷電方法進行了研究分析,對于高電導的液體,場致荷電和荷電可以使其霧化,而對于電導較低的絕緣液體,需用浸潤電極荷電和感應荷電方法使其充分帶電;最後,根據前面的研究分析,設計和組裝裝置,在同一環境下對煤油、乳化劑、酒精三種不同液體介質進行高壓靜電霧化,並對結果進行分析處理,總結出液體靜電霧化與液體表面張力、電導和粘度的關系及電壓對液體靜電霧化的影響等,得出高壓靜電場中液體霧化的一般規律。
  2. First, the theory of fretting wear and studies on fretting fatigue were introduced and the parametric method was used in the process of creating the model of dovetail joints in ug software. the elastic contact problem is analyzed in finite element method ( fem ) and is used to the parameters " distribution and contact stress of the joint are obtained on the base of ansys code. with the effect factor of load frequency, the prediction method of fretting fatigue life of dovetail joint under low and high / low cycle complex load is proposed

    本文介紹了微動損傷的機理和微動疲勞壽命的研究方法;利用ug軟體對燕尾榫聯結構創建了參數化實體模型;基於ansys軟體平臺求解彈性問題,獲得了榫聯結構應力及狀態量的分佈;在已有微動疲勞壽命預測模型的基礎上,引入載荷頻影響因子,對低周、高低周復合載荷作用下的燕尾榫聯結構進行了微動疲勞壽命的預測,與結果對比表明採用本文提出的方法預測榫聯結構的微動疲勞壽命是有效的。
  3. The sort, material composite, structure properties and conduction mechanisms of eca ( electrical conductive adhesive ) were discussed in this paper. then three types of ega specimens were designed and made, on which temperature cycles test from - 55 ? to + 125 ? and thermal aging at + 125 ? were carried out. changes of the adhesive strength, eca ' s bulk resistance and contact resistance under the environment stress were summarized and a detailed evaluation on these specimens was given

    本文在全面闡述導電膠的分類組成、物理結構、導電機理的基礎上,設計並製作了三批導電膠樣品,通過對樣品進行長時間的- 55 ? ? + 125溫度循環和125高溫存儲,總結了導電膠粘強度、體電阻和電阻在環境應力下的變化規律,對三類樣品的長期可靠性做出了全面的評價,並結合導電膠電阻和「穿流閾值」的計算機模擬,給出了提高導電膠可靠性和電導的建議,介紹了國內外在高電導高可靠性導電膠研製方面的一些最新進展。
  4. Gas permeability tester and mechanical folding device were developed to study the barrier property and deformation failure behaviors. the surface characterization, chemical structure, optical, mechanical properties of pet coated with dlc have been investigated by x - ray photoelectron spectroscopy ( xps ), contact angle measurement, light transmission analysis, nanoindentation and friction wear tests

    通過x射線光電子譜分析、角測定、光學透過分析、納米壓痕、摩擦磨損、機械彎折、氣體透過,對膜層的表面特徵,光學、力學及氣體阻隔性能進行了系統的研究。
  5. Based on the tribological principle and the theory of contact mechanics, it is feasible to adopt curvature - changing structure in the rock - bit journal bearing system. the structure and coupling relationship of curvature - changing journal bearing under the condition without friction have been analyzed and three kinds of sub - form structure configurations, namely, the pseudo - curvature - changing structure, the conformable curvature - changing structure, and the clearance curvature - changing structure, been differentiated according to the contacting features. the shape optimization and pre - running - in regulations of the contact surface of curvature - changing journal bearing under friction condition have been established. the results of rock bit journal bearing test indicate that the tribological behavior of the bearing can be effectively improved by curvature change based on both designing and pre - running - in

    基於摩擦學原理和力學理論,提出了可在牙輪鉆頭滑動軸承中採用變曲結構.在不考慮摩擦的情況下,就結構設計和配合關系等問題進行了分析討論,劃分了準變曲、吻合變曲以及間隙變曲等3種結構形式;針對考慮摩擦時的變曲結構,提出了形狀優化和預磨合的實施方案.鉆頭軸承結果表明,無論是預設計變曲還是預磨合變曲,都能改善軸承摩擦副的摩擦學特性,因而值得進一步研究和推廣
  6. The results indicated that the dimension, shape and purity of base material could meet the functional demand of solid lubricant ; the thermal decomposition temperature of ptfe resin exceeds 400 c, but organic and inorganic packing filler added in ptfe made the water absorption rate of composite material increased, melting temperature and decomposition temperature decreased, in the meanwhile oxidative decomposition reaction was accompanied ; polar groups such as c = o, c - o - c and so on in the carbon fiber surface is advantageous to increase compatibility with other components and interlayer shearing strength ; uniform design experimental method could help to find the relationship between formula and frictional property by relatively small tests. the developing trend of each formula ' s friction coefficient could be showed by fitting curve ; the friction coefficient with no copper powder or graphite in formula was relatively big. this fact showed that copper powder and graphite should be used cooperatively ; it was found that when the ratio of copper powder to graphite by weight is 15 : 60, 30 : 30 - 40 and 60 : 15 - 30 respectively, the friction coefficient was relatively small. the degree of crystallinity of pure ptfe reached maximum by air cooling and the abrasion loss also reached maximum among three ones ; at the same time, the abrasion loss of solid lubricant sample was also the biggest among three ones ; when solid lubricant matched with 45 # steel axle or gcrl5 steel axle, lubricant transfer film could be formed on metal surface, thus direct contact between the surface of metal friction pair rings was reduced. their working life was elongated extremely ; there was mainly much graphite, a little ptff, moo3, feso4, cus and so on in lubricant transfer film

    結果表明:所選原料的尺寸、形狀及純度可滿足固體潤滑劑的性能要求;聚四氟乙烯樹脂熱分解溫度超過400 ,但在ptfe中加入無機填料會使復合材料吸水提高,熔融溫度及分解溫度降低,且伴有氧化分解反應;碳纖維表面含有c = o及c - o - c等極性基團,有利於提高其與其它組分的相容性,提高層間剪切強度;均勻設計方法能夠用較少的次數找出配方與摩擦性能間的關系,擬合曲線基本能表示各配方的摩擦系數發展趨勢;配方中不加銅粉或不加石墨,其摩擦系數均較高,說明銅粉和石墨應該配合使用;當銅粉15份、石墨60份時,銅粉30份、石墨30 - 40份時,銅粉60 、石墨15 - 30份時,摩擦系數均具有較低值;純聚四氟乙烯樹脂在空氣冷卻時結晶度最大,磨損量也是三者中最大的;同時,固體潤滑劑樣在空氣冷卻時的磨損量也是三者中最大的:不論是固體潤滑劑與45 #鋼軸配副或是固體潤滑劑鑲嵌入銅套后與gcr15鋼軸配副,在金屬表面均可形成潤滑轉移膜,從而減少金屬摩擦副表面間的直,大大延長其使用壽命;轉移膜中主要含有較多的石墨、少量聚四氟乙烯、 moo 。
  7. The contacting measurement method with a double probe is put forward after the detailed analysis of the state - of - the - art measuring methods of the thickness of wall. firstly, the theory - profile generatrix is built, and then the movement curve of the track of joint center is constructed, which aims at making the joint center move along the movement curve and keep the fixed sensor touching the wall. the measuring sensor examines the line in its normal direction of the interior wall all the time, the data from the sensor is the thickness value of the wall

    論文通過分析國內外變曲回轉體壁厚測量的現狀,提出了雙測頭式測量方案:通過構造理論輪廓母線,建立鉸鏈中心的運動曲線,使鉸鏈中心始終沿運動曲線運動,以保證固定頭與傳感器測頭的連線始終在內壁法線方向上,從而傳感器測頭所得的數值即為壁厚值,該方案經模擬測取得了預期效果。
  8. Field test method for determining the relative protective effectiveness of a wood preservative in ground contact

    測定地面木材防腐劑相對防護效現場方法
  9. At last, in according to the experiment results, the interpretation of the mechanism of the slip phenomenon of prepressing - contact spring - damping system was given in this dissertation. further more, the relationship among the limit frequency, the value of prepressing, excitation frequency, the amplitude of excitation and the materiel parameter was analyzed. base on the theory analysis the limit frequency formula was given, and the contact - slip condition for engineering application was concluded

    最後根據理論研究與分析的結果,分析預緊式彈簧阻尼系統產生滑移現象的機理以及共振峰值漂移現象的理論解釋,並通過定性分析分離時的頻與預緊量、激勵頻、激勵力幅值以及墊層的材料參數之間的關系,提出能定量描述系統出現滑移現象的極限頻公式,總結了預緊式結構始終保持的條件。
  10. Standard test method for wear rate and coefficient of friction of materials in self - lubricated rubbing contact using a thrust washer testing machine

    用止推墊圈機測定自潤滑磨擦中材料磨損速和摩擦系數的標準方法
  11. 05. 02 wear rate of materials in unlubricated rubbing contact using a thrust washer testing machine, test for

    用止推墊圈機測定在非潤滑摩擦中材料的磨損
  12. Test methods for primary wound dressings - part 2 : moisture vapour transmission rate of permeable film dressings

    性創面敷料方法.第2部分:透氣膜敷料水蒸氣透過
  13. Through the small specimen tests, we found the failure of the bonding interface between frp and concrete can be avoided and the efficiency can be highly improved, as long as the pressure is almost 0. 2 kg / cm2

    開展小塊粘結加壓實研究,結果表明只要施加0 . 2kg / cm ~ 2左右的壓就能避免發生纖維與混凝土之間的脫膠破壞,大幅提高加固效
  14. Besides, digital signal processing technology in ac contactors electric life test is studied in this paper. under the principles of digital signal processing, using fft, the calculate process of power supply frequency and power factor is discussed

    此外,本文研究了交流器電壽命中數據處理技術,應用數字信號處理理論,利用傅利葉變換,分析了電源頻、功因數的計算過程。
  15. Thirdly, through analyzing the relation between the temperature and vibration stress and the life of connector, and combining with the theory of probability and statistics, deduce the failure physics equation, and set up a reliability statistical model. laid a foundation for working out electrical connector reliability test plans and treating electrical connectors test data

    第三,通過研究環境溫度和振動應力與電連壽命之間的影響關系,並結合概統計理論,推斷出失效物理方程,建立了可靠性統計模型,為電連器可靠性方案的制定和數據的統計分析奠定了基礎。
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