氣體動力特性 的英文怎麼說
中文拼音 [qìtǐdònglìtèxìng]
氣體動力特性
英文
gas-dynamic behavior- 氣 : Ⅰ名詞1 (氣體) gas 2 (空氣) air 3 (氣息) breath 4 (自然界冷熱陰晴等現象) weather 5 (氣味...
- 體 : 體構詞成分。
- 力 : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
- 特 : Ⅰ形容詞(特殊; 超出一般) particular; special; exceptional; unusual Ⅱ副詞1 (特別) especially; v...
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 氣體 : gas; gaseous fluid
- 特性 : characteristic(s); character; performance; features; properties; behaviour; response; character...
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Second, the starting and stopping behaviors under disturbed condition are analyzed and calculated by using the dynamic concentrative parameter model, which gives some advice to better prescribe refrigeration system and set theoretic foundation for carrying out automatic control of refrigeration system. third, the normal running process is analyzed and calculated by means of rational matching theory, which gives some advice on how to better understand the parameter change under steady state and the affection of inlet - parameter on evaporator. fourth, the simulation software with dynamic characteristic is designed, which can be applied to calculate thernio - parameter of cryogen, air humidity and frost thickness under different initial and boundary conditions, and to carry out dynamic simulation under conditions of dryness, wetness and frostiness, at the same time, to achieve detection and simulation at any stage from starting to stopping
本文的主要內容如下: 1 )對翅片管蒸發器結構特點進行分析,選取適當的微元控制體,就干、濕和霜工況下對每個微元分別進行傳熱傳質分析,基於經驗關系式確定霜的有關參數,對于霜工況下的霜生長建立模型,經適當假設,運用質量守恆、能量守恆和動量守恆方程建立適合動態模擬的蒸發器數學模型,為系統模擬奠定基礎; 2 )對蒸發在大擾動下的開、停機過程,運用動態集中參數模型進行分析和計算,為更好地描述製冷系統運行的全過程奠定基礎,同時也為製冷系統實現自動控制提供一定的理論基礎; 3 )對蒸發器正常運行過程,運用動態分佈參數和參數間定量耦合的觀點來分析和計算,為更好地了解穩態工況下各點參數的變化情況及各入口參數對蒸發器動態特性的影響即蒸發器性能對各參數變化的敏感性; 4 )編寫翅片管蒸發器動態特性模擬計算程序,可以計算不同邊界條件和初始條件下的製冷劑熱力參數、空氣溫濕度和霜厚度分佈場,實現對翅片管蒸發器在干、濕和霜工況下的動態模擬。Presents the model proposed for analyzing the vibration characteristics of shrouded blades and their calculation method by employing a wave propagation theory and modal synthesis technology coupled with a finite element method from the view point it is possible not only to conduct frequency modulation of the shrouded blades of a gas turbine, but also to utilize the friction effects between them to dissipate energy, thereby attaining the aim of vibration alleviation, as shrouded blades have been widely used in the design of high - speed turbomachinery, such as modern gas turbines and steam turbines, and with the shrouded blades forming an integral whole in a centrifugal force field, the vibration characteristics of the whole ring of blades are different from those of a single isolated blade, and this makes it essential to take into account the integral effect of blade shrouds, concludes from the calculation examples and engineering application that the above approach is valid and correct along with the possibility of considerably reducing the scale of calculation and analysis, and points out it is necessary to take into consideration the coupled effect of the whole ring of blades while the dynamic characteristics of shrouded blades is being analysed
帶冠葉片不但能調頻,還可以利用葉冠之間的摩擦效應來耗散能量,達到減振的目的.帶冠葉片在離心力場中形成一整體,其整圈葉片振動特性不同於單個孤立葉片,需考慮葉冠的整體效應.利用帶冠葉片系統的循環對稱性,提出了採用波傳播理論和模態綜合技術,結合有限元方法研究燃氣輪機帶冠葉片振動特性的分析模型和計算方法.算例和工程應用證明了該方法是效性的、正確的,並可以大大降低計算分析規模.研究表明帶冠葉片動力特性分析時必須考慮整圈葉片的耦合效應To understand better the dynamic behavior of pneumatic flap gate of dry docks so as to shorten the design period of the dock gate and cut down the cost of tests, a kinetic simulation model for the pneumatic flap gate system of dry docks has been established by using adams - automatic analysis software for the dynamics of a mechanical system
摘要深入了解干船塢氣控臥倒門系統的動態特性,以便縮短塢門的設計周期,節約試驗費用;運用機械繫統動力學自動分析軟體adams ,建立了干船塢氣控臥倒門系統的動力學模擬模型。The principle and the mechanical structure of the air - gap inductance - type transducer are analyzed in this article, and the static parameters are calibrated. dynamic calibration is applied to air - gap inductance - type transducer which is not good in dynamic capability, to obtain the dynamic parameters of the transducer and its measuring circuit. based on the result of the dynamic calibration, the transducer and its serving circuit are modeled so that the method of how to improve the dynamic performance can be found
本文對現有氣隙式電感傳感器在原理和機械結構上作了深入的分析,對其參數進行了靜態標定;並且針對常規電感傳感器動態響應低,不宜用於快速動態測量的缺點,引入測試系統動力學的思想,設計了一套動態校準系統,對現有傳感器進行多次動態校準,根據動態校準的實驗結果對現有傳感器建立數學模型,得到現有傳感器的動態特性;在此基礎上,根據磨床工件在線檢測的要求,設計一個硬體補償系統來提高整個測試系統的動態特性。Pneumatic fluid power - compressed air lubricators - test methods to determine the main characteristics to be included in supplier ' s literature
氣動流體動力.壓縮空氣潤滑器.供貨商文件包括主要特性測定的試驗方法Pneumatic fluid power - compressed air lubricators - main characteristics to be included in supplier ' s literature and product - marking requirements
氣動流體動力.壓縮空氣潤滑器.供貨商的文件和產品標志要求包括主要特性Data of response of three high - pressure transducers are acquired respectively with effect of gas - shock tube and quick - opening valve. dynamic characters of transducers are known fully because of complementarity of data when transducers are calibrated at different frequency bands and pressure ranges. characteristic of excitation signal and its influence for modeling are discussed in this paper
將三種高壓傳感器在氣體激波管和快速閥門上分別得到激勵響應的數據,根據兩者所能校準的頻率段和壓力范圍不同,利用數據的互補性,可以對傳感器的動態特性有全局的了解。Numerical simulations demonstrate that the multi body analytical model can analyze the aeroelastic stability of the tiltrotor aircraft in the helicopter mode
數值計算表明:建立的多體動力學模型能夠快速分析直升機模式下傾轉旋翼機復雜的旋翼機翼氣彈耦合動力學特性。So the conventional solid windows have been becoming the threshold of the laser energy ' s promotion and the optical quality ' s improvements. to solve the above - mentioned problem of hel ' s output solid windows the concept of aerodynamic windows ( abbr. adw ) is proposed according as the property of gas, i. e
由於氣體介質具有對電磁輻射選擇吸收的特性,而且其擊穿功率閾值也特別高,因此為了解決上述高能激光器固體輸出窗口的「瓶頸」問題,根據氣體介質的這一特性,提出了氣體動力學輸出窗口(簡稱為氣動窗口, adw )的解決方案。On the basis of analyzing the aerodynamical property and the construction of usual axial fan, the aerodynamical property and the construction of contra - rotating axial local fan are studied in the paper. moreover, author has designed a kind of contra - rotating local fan, which has the characters of low noise, high efficiency, well aerodynamical performance, optimum structure, and large power
本文在分析了普通軸流式通風機的氣動力特徵和結構的基礎上,研究了對旋式軸流通風機的氣動力特性和結構特點,設計並製造出了一種風量大,風壓高,噪聲低,效率高,氣動性能好,體積小,結構新穎的2 30kw新型大功率對旋式軸流局部通風機樣機。Gas - solid flow simulations in spouted beds on body - fitted coordination
貼體坐標系下噴動床內氣固兩相流體動力特性的數值模擬In experimentation, the project adopts computer, data collection board, sensor and software. finally, the theory analsis is validated that the contact of noise elimination, velocity of flow, resistance loss
在試驗中,採用了以計算機、數據採集卡、傳感器和處理軟體得到阻性消聲器的動態特性,從而驗證了阻性消聲器的消聲量、氣體流速和阻力損失之間聯系的理論分析。Refined grids were utilized in a large - eddy simulation model for obtaining high - resolution planetary boundary data and analyzing surface layer turbulence. simulation results showed that refined meshes reduced turbulent contributions of subgrid scales, sensitivity of simulation results to sgs parameters decreased, and features of the whole boundary layer were explicitly resolved better. results also revealed flux - profile relationship correctly in surface layer and a good agreement of turbulent velocity characters with observation. therefore, it concluded that the les method was able for simulation of surface layer flow and turbulence, and might be used for further applications
採用加密網格的大渦模式獲取邊界層風溫場的高解析度模擬結果,並據以分析近地面層大氣的湍流特性。結果表明,較小的網格尺度使次網格湍流貢獻率大為降低,模式計算結果對次網格參數的依賴性減小,邊界層整體特徵得到更好的反映。同時,模擬出的近地面層通量廓線關系及湍流速度特徵與實際觀測結果吻合甚好,表明模式具有反映近地面層平均運動和湍流特性的能力。The motion equations of the unsteady air and water in jig are obtained by the method of fluid dynamics, and the fluid parameters in jig at different characteristic curve of air valve are calculated by use of numerical method
用流體力學方法導出了跳汰機內空氣水動力學體系的運動規律,並通過數值計算得出了不同風閥期特性下的跳汰機內的水流運動。The flow regime inside of the tunnel, the characteristics of hydrodynamic load, the hydrodynamic pressure feature at the gate slot and the vent air speed during the shutting of the gate is studied through model test, and then the reliability of the gate, the feature of the vent air speed and the pressure at the gate slot during the shutting of the gate are analyzed based on the test result concerned
通過模型試驗研究了事故閘門關閉過程中泄洪洞內的水流流態、門體的水動力荷載特性以及門槽段動水壓力特性、通氣孔風速,並根據試驗結果分析了該閘門動水下門過程中的可靠性,通氣孔風速特性和門槽段壓力特性。Our major products include fluid power systems and services for industrial, mobile and aircraft equipment ; electrical systems and components for power quality, distribution and control ; automotive engine air management systems and power - train controls for fuel economy ; and intelligent drive - train systems for fuel economy and safety in trucks
伊頓公司主要業務涉及流體動力、電子產品、汽車和卡車零部件,在許多工業領域都是全球領導者,包括電力系統和電源質量、電力輸配和控制組件;工業、行走機械和航空設備方面的流體動力系統與服務;安全節能的智能化卡車傳動系統;以及汽車發動機空氣管理系統、傳動系統解決方案和運行、省油及安全方面的特性控制。In this way, life span of catalytic converter assembly can be checkout in short time. a set of evaluation and test method has been put forward and the test bench has been built up. some catalyst converters on the chinese market as the sample have been tested on the bench, but many quality problems have been found
另外,本文對催化轉化器內部氣體流動的特性進行了研究,模擬結果表明本文把蜂窩結構的催化器用當量連續法建立載體的流動力學模型,並用ansys軟體對整個催化器的流場進行穩態流動數值模擬的方法是可行的。Fluid power systems and components. two - pin electrical plug connectors with earth contact. characteristics and requirements
流體動力系統和部件.帶接地的雙銷電氣連接器.特性和要求Fluid power systems and components. three - pin electrical plug connectors with earth contact. characteristics and requirements
流體動力系統和部件.帶接地的三銷電氣連接器.特性和要求The aerodynamics characteristic of spinning projectile with lateral jets has constitutionally difference in formation from that without jet, and it waves periodically. these characteristics are very important for the study of aerodynamics of projectile with lateral jets
與光彈體相比,旋轉側噴彈丸的空氣動力特性不僅在形成機理上發生了本質變化,而且在數值上表現出復雜的波動形式,這些特點將對旋轉側噴彈丸空氣動力研究帶來直接和深遠的影響。分享友人