有芯成型法 的英文怎麼說
中文拼音 [yǒuxīnchéngxíngfǎ]
有芯成型法
英文
mandrel method-
In order to develop and consummate the analysis theory and calculation method of base - isolated structures, based on the research on restoring force model of isolation systems and the analysis on the nonlinear seismic response of base - isolated structures, the analysis on multi - dimensional and lateral - torsional coupled seismic response of base - isolated structures is developed in this paper. according to the mechanical performance of isolation systems, detailed analysis and improvement of the present research, an unilateral and a bilateral coupled visco - elastic hysteretic model for rubber bearings, an unilateral and a bilateral coupled visco - elasto - plastic differential hysteretic model for lead rubber bearings, an unilateral and a bilateral coupled modified visco - plastic differential hysteretic model for sliding friction bearings are proposed
為進一步發展和完善基礎隔震結構分析理論和計算方法，本文以隔震系統恢復力模型研究及基礎隔震結構非線性地震反應分析為基礎，對基礎隔震結構的多維地震反應及平?扭耦聯地震反應開展了以下幾方面的研究工作：根據隔震系統力學性能的特點，在現有研究成果的基礎上，對隔震系統恢復力計算模型進行了改進和創新，提出了普通疊層橡膠支座單向及雙向耦合粘彈性恢復力計算模型，鉛芯疊層橡膠支座單向及雙向耦合粘彈塑性微分型恢復力計算模型，摩擦滑動支座單向及雙向耦合修正粘塑性微分型恢復力計算模型。It possesses not only the self - learning ability and adaptability, but also the function of self - adjusting factors. based on fuzzy set, neural network theory, the fuzzy control model and fuzzy neural network control model of multi variable system are presented. based on the automatic core - welding line of shop floor control system in yangzhou radiator plant computer integrated manufacturing system ( ys - cims / sfcs ), the fuzzy logic theory was applied to the controlling device and established the main heating room fuzzy temperature controller and finally was put into practical use
本文採用了基於神經網路技術的智能pid控制策略，設計了一類具有自學習和自調整比例因子功能的神經元網路自適應pid控制器的結構及演算法；為解決結構不確定性的復雜多變量系統的控制，基於模糊集及模糊系統、神經網路理論，建立了多變量系統的模糊控制模型及模糊神經網路控制模型；針對揚州水箱廠計算機集成製造系統車間管理與控制系統（ ys - cims sfcs ）中的實際工程問題，設計和開發了散熱器芯子烘焊自動線主烘腔溫度模糊控制器，解決了生產中長期存在的老大難問題，提高了產品質量，降低了單產能耗。Abstract : some important principles in the design of split box molding are discussed concerning the selection of mold joint ， the methods of location and the design of gating system. it has been proved in production that the principles discussed had great effects on the cost and quality of castings
文摘:以床身為例，討論了劈箱造型工藝設計中的幾個重要原則：包括分型面的選擇、定位方法、分芯方法及澆注系統設計等；生產實踐證明，這些原則對鑄件生產成本和品質有重要的影響。Carry on a large amount of experiment and analysings, the result of calculation of designing has been verified, the error of designing and computing has been revised, the physical dimension of the rivet has been confirmed finally. combine the real working condition of the factory the difficulties that the rivet stem and the locking collar are difficult to process are solved, a series of feasible technology schemes are made finally. according to the designing and of the test of the blind rivet, consult the relevant standards of u. s. a., the relevant aviation industrial standards which lay the foundation for the popularizaion and application of the rivet are compiled
本文通過系統分析及計算，突破了鉚釘抽鉚成形、剪斷環及時被剪斷、芯桿到位及時拉斷等一系列技術難點，確定了設計方案，運用有限元方法對機械鎖緊鼓包型抽芯鉚釘進行了強度分析：制定了試驗方案，驗證了設計計算結果，修正了設計計算所造成的誤差，確定了鉚釘的結構尺寸；結合工廠的實際生產條件，解決了釘桿和鎖圈難以加工的困難，制定出?系列可行的工藝方案：根據設計及試驗結果，參照美國的相關標準，編制了系列航空工業標準，為機械鎖緊鼓包型抽芯鉚釘的推廣應用打下了基礎。Author thinks that the direction of the maximum plastic distortion along a constant radius around the crack tip may be considered as the direction of shear - mode fracture ( named pmax - criterion ) and the load when located shear band prongs the ligament in the front of crack tip is regarded as the limited load of shear - mode fracture. ( 3 ) the fad ( fracture assessment diagram ) of titled crack is proposed based on achievements of mesomechanics about i - ii complex ductile fracture of metal, and the titled crack is classified two kinds : void - mode fracture is assessed by fracture assessment curve, and shear - mode fracture by limited load. ( 4 ) using a fe program based on plantle - ressue theory to calculate some mesomechanical parameters, a flange joint structure of a high pressure vessel ( design pressure 31. 4mpa and the thickness of the hemispherical head is half of that of shell. ) is analyzed to determine whether the structure under operation pressure is safe or not, forecast the mode of potential invalidation and argue for the rationality of design of the structure
試件的整體斷裂為剪切型，但在試件芯部裂尖鈍化區中部出現了韌窩型啟裂並有一定的擴展，說明局部較高的應力三軸度也會使韌窩型機制得以發展，但是不改變試件整體的剪切型斷裂模式；對韌性斷裂的剪切模式的細觀機理做了一定的探討，並且提出了含裂紋構件剪切型斷裂的宏觀判據：認為裂紋前方的集中剪切帶中與裂紋尖端等半徑處最大有效塑性應變出現的方向可以作為裂紋剪切斷裂的方向（可簡稱為_ （ pmax ）準則） ，集中剪切滑移帶貫穿裂紋前方承載韌帶時的載荷可以作為極限載荷；本文運用金屬韌性斷裂細觀力學在一復合型韌性斷裂方面的研究成果，採用失效評定圖的形式，提出了傾斜裂紋的安全性評定方法的基本框架。As the inner shape of the thin aluminum alloy sheets will deform and differ from the theoretical ellipsoid to some extent after welding processing, it is very difficult to meet the requirements of the tolerance between the honeycomb sandwich and thin aluminum sheets when only conventional cnc and traditional manual manufacturing techniques are used
由於上、下底蒙皮焊接成型過程中的變形使其內表面形狀相對于理論橢球面具有較大的誤差，採用常規的橢球面數控加工方法，或傳統的按上底蒙皮內表面手工打磨、研合修配方法加工蜂窩夾芯表面無法保證配合精度要求。First, according to the demand of vimp for resin system, the reaction kinetics and rheological of up resin are investigated and the optimal content of low additive profile ( lpa ) is determined. then vimp based on a high - permeable medium and grooves are studied by visual experiments, through which the appropriate high - permeable mediums are selected and the parameters of width, depth and spacing for flow grooves and spacing for supply grooves are optimized. furthermore, various factors affecting the mold filling process are discussed and the whole vacuum infusion procedures are described taking examples of the manufacture of a model boat and a sandwich panel in one infusion
文中首先根據vimp對樹脂體系的要求，對vimp用不飽和聚酯樹脂體系的動力學和流變學性能進行了研究，確定了最佳低收縮添加劑的含量；對高滲透介質型和溝槽型vimp開展了實驗研究，通過可視化實驗優選出較好的高滲透介質，確定了引流槽的寬度、深度和槽間距及主槽的槽間距等工藝參數並進行了優化；對影響充模過程的各種因素進行了詳細的討論，並以模型船和夾芯面板的製作為實例描述了兩種vimp的成型過程；在實驗的基礎上，建立了二維滲漏模型，採用控制體有限元法對高滲透介質型vimp進行了成型過程的計算機模擬計算，通過充模時間和流動前峰的計算值與實驗結果的比較，驗證本文所採用的數學模型和數值方法的正確性，其結果對實際生產具有一定的理論指導意義。In order to obtain the stress distributing rules of the forming process of short plug drawing tube and the differences of drawing force, pulling force and dimension precision under different dies, fe method was used and fe model of the plug drawing tube under different dies was built
摘要為了獲得不同的模具下短芯棒拔管成型過程中的應力分佈規律以及不同模具對短芯棒拔管拔制力、芯棒后拉力和尺寸精度的影響規律，利用有限元的方法，建立了不同模具下短芯棒拔管成型的有限元模型。Third, the fabrication of hollow fibers with sic films has been done with chemical vapor deposition ( cvd ), and the power - transmitting properties of the above samples have been obtained with an austar 360 ftir spectrometer and kyky - 2800 sem. the kind of fiber has a 950um inner diameter and 3m length, and its transmitting loss is about 0. 7db / m which can be suitable for many applications
利用化學氣相沉積法（ cvd ）初步完成了具有sic內膜的空芯傳能光纖的制備，使用auastar360ir - ft紅外光譜儀、 kyky - 2800型掃描電鏡等先進儀器對樣品進行分析研究，所研製的孔徑為950微米、長3米的sic sio _ 2空芯傳能光纖，傳輸損耗約為0 . 7db m ，為進一步提高光纖性能打下了良好的基礎。分享友人