振動模具 的英文怎麼說
中文拼音 [zhèndòngmójù]
振動模具
英文
swing die-
Introducing the theory and application of boundary element method on the sound radiation, giving the process of solving vibration noise radiation problem using boundary element analysis software ; presenting the coupling theory and the combination analysis of finite element method and boundary element method, and doing relevant analysis based on close drum shell ; programming the noise data simulation program using the numerical calculation software, simulating the acoustic and pressure data of a key point in the transient response acoustic field of the close drum shell, realizing the audibility of the noise, using the virtual reality tools to simulate the vibration noise of the drum shell ; combining the finite element method and boundary element method to analyze the vibration noise radiation of some gear box, and completing the whole simulation process of the vibration noise of the gear box
綜合介紹了邊界元法在聲輻射問題上的理論及應用;並給出了運用邊界元法分析軟體求解振動聲輻射問題的過程。闡述了有限元法和邊界元法的耦合理論及組合分析方法,並以封閉鼓形薄殼為分析對象進行了相應的分析。利用數字計算軟體編制了噪聲數據模擬程序,並模擬了通過組合方法分析封閉鼓形薄殼瞬態響應聲場而獲得一關鍵點的聲壓數據,實現聲音的可聽化,隨后通過虛擬現實工具實現了該情形下橢球殼振動噪聲的虛擬模擬。In view of bearing capacity of the elastoplastic theory analysis, the author made a comparison between the achieved bearing capacity limit load pi / 4 of round base ( space problem ) and the limit load pi / 4 of bar groundwork foundation design ( plane problem ) from soil mechanics at home and abroad as well as foundation criterion, and explained why the value of formula in present design criterion from soil mechanics is inclined to be conservative. in the light of the author ' s many years experience of vibration test on the spot and the research work of relevant projects, the author worked over the dynamic pile testing of the bearing capacity of foundation and batholith, and gathered the parameter of dynamic analysis and testing. the author also talked over the difficult point of pile foundation design criteria in present batholith engineering world, i. e. the confirmation of batholith bearing capacity of pile end, from the following aspects : a ) confirmation of single axis counter - pressure strength of rock in house ; b ) f. e. m calculation of elastoplastic model ; c ) calculation of soil mechanics ; d ) deep well load test
然後,對巖土工程領域至今尚未解決,甚至不為人注意的考慮地基變形的地基承載力問題進行了實用化的探討,提出了考慮地基變形的地基承載力上程計算方法;對基於彈塑性理論分析的地基承載力國內尚未見報道的空間問題得到了圓形基礎(空間問題)的承載力界限荷載p _ ( 1 / 4 ) ,並與國內外土力學專著及地基基礎設計規范中的條形基礎(平面問題)的界限荷載p _ ( 1 / 4 ) ,進行了對比,從而定量上解釋了目前設計規范引用土力學承載力公式值偏於保守的這一情況;根據本文作者多年從事現場地基工程振動試驗及相關課題的研究工作,本文以截頭錐模型模擬地基,對地基(巖基)承載力的動測法進行了研究,為各類地基(包括巖基) ,匯總了動力分析和檢測川的參數:針對日前巖土工程界應用樁基設計規范中的難點? ?樁端巖基承載力的確定問題,從巖石室內單軸抗壓強度確定、基於彈塑性模型的有限單元法計算、土力學計算及深斤載荷試驗四方面進行了深入討論;本文作者根據多年現場載荷試驗的工程實踐,對深井荷試驗裝置的核心部分? ?反力裝置,設計了側壁支撐反力加載系統,該加載系統具有實用、簡便、穩定及安個等優點。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。Mode is structure ’ s inherence characteristics, each mode has specifically resonant frequencies, damping values, mode shapes, mode stiffness and mode mass
模態是結構的固有振動特性,每一階模態都具有特定的固有頻率、阻尼比、振型、模態剛度和模態質量。This paper researches and analyses the developments of web technology and magnetostrictive transducers from world wide region. the paper also analyes the characteristics curve of magnetostrictive transducers based on its equivalent circuit and researches the method how to make sure its syntony frequency and its electric simulation network parameters. at the same time, by using jsp technology, a magnetostrictive transducer electric simulation application is designed based on b / s three - tier system structure. the experiment data is fitted by curve fitting module. the equivalent input impedance of it with stimulate loop is separated based on the results of curve fitting and the syntony frequency and electric simulation network parameters of magnetostrictive transducers is determined by the input impedance. the method presented in this paper can determine the syntony frequency and electric simulation network parameters of magnetostrictive transducers with a better accuracy than the testing method of syntony & anti - synton y. further more, jsp, the advanced technology at current, has been used to realize a magnetostrictive transducer web electric simulation system. the system has good human computer interface and the function of resource sharing and information publishing. the research of this paper and its achievements have some practical merits in the researchful and applied fields of magnetostrictive transducer
用java編程語言編寫的曲線擬合模塊,對輸入的實驗數據進行了最小二乘法的曲線擬合;根據曲線擬合結果可從帶激勵線圈的磁致伸縮換能器的輸入阻抗中分離出磁致伸縮換能器鐵芯在無激勵電流時由機械振動形成的等效輸入阻抗,並由此輸入阻抗確定磁致伸縮換能器的諧振頻率及電氣模擬網路參數。本課題提出的方法與傳統的諧振?反諧振法相比,能更準確地確定磁致伸縮換能器的諧振頻率及其電氣網路參數。同時,採用當前比較先進的web技術,實現了基於jsp的磁致伸縮換能器web電氣模擬系統,該系統具有良好的人機界面和資源共享、信息發布功能。According to the characters of the vibration of internal combustion engine and on bases of the theory of active vibrantion control which is carefully analyzed, the corresponding mathematical model suitable for the vibration of internal combustion engine is developed and the fuzzy control techniques are adopted. a new active vibration control system is developed w hich conclude mcu, the key part, and the equipment used to survey the vibrative acceleration of internal combustion engine
本文根據內燃機振動的具體特點,在仔細分析了振動主動控制原理的基礎上,建立了適合內燃機整機振動的數學模型和採用了模糊控制方法,提出了一種新的內燃機整機振動主動控制減振系統,該系統以微控制器為核心,配以測加速度和控制機電轉換執行機構組成。It is the harmonic resonance of these archangelic letters with both the higher vibratory frequency patterns of god ' s name, and the elements of the lesser creation worlds, which allows this synchronization to occur
這就是這些大天使字母諧波共振效應,既具有上帝名稱更高級振動頻率模式,又具有較少的創造世界的大自然力量,大自然力量保證了同步性發生。The paper introduces the construction technique and quality control of the concrete ground container, the project uses the small machine - constructing method which vibrates beam and the vibrating spear unify, through example of key working procedure : the construction survey, the ground basic roller compaction, two ash zone constructions, the steel bar construction, the template construction, the concrete surface layer construction craft and the quality control, the small machine construction method prove to meet the project needs
摘要介紹了混凝土集裝箱堆場施工工藝與質量控制,工程採用振動梁和振動棒相結合的小型機械法施工,通過對關鍵工序如:施工測量、場區基層碾壓、二灰層施工、鋼筋施工、模板施工、混凝土面層的施工工藝與質量控制,表明小型機械法施工能滿足工程需要,工程完成後符合驗收標準,滿足了業主的使用要求,對于同類工程的施工具有借鑒意義。However, due to the elastic deflection and vibration of the links, the flexible manipulator becomes an infinite dimension mimo system with distributed parameters, and is highly nonlinear and strong coupling. therefore, the model and the control of flexible manipulator are of great significance both in theory and in application
然而也正是由於連桿存在彈性變形和振動,使得柔性機械手成為一個高度非線性的、分佈參數的、強耦合的無窮維多輸入多輸出系統, ,因此其建模和控制也具有重要的理論意義和應用前景。This paper introduces the evolution of analytic tools for viv response of slender marine structures, and then put forward a prediction model for viv of a slender riser in which fluid force coefficients obtained in forced oscillation tests are applied more directly than other similar models
文中介紹了細長海洋結構物渦激振動預報工具的發展,進而提出了一種基於圓柱體受迫振蕩實驗數據的預報模型。In order to make the sensitivity of 2 - demension accelerometer along the two main arbors almost identical, symmetric four - beam structure that embeds a double - sides interdigitated differential capacitive with puckered beam in two directions was used as sensitive component. in addition, the differential capacitive accelerometer fabricated by bulky silicon micromechanical technique has high sensitivity, wide measurement scope, less nonlinear error, and simple converting circuit. then, the structure parameters of the sensitive component were calculated and stimulated, which results in a set of the optimized structure design parameters, main fabrication procedure and several key fabrication technology
為使二維振動傳感器在兩主軸方向的靈敏度大致相同,敏感元件採用高度對稱的四梁結構,其中每個軸向上均採用帶折疊梁的雙側叉指電容結構,採用體硅微機械工藝製作的高深寬比叉指電容式敏感元件,具有高靈敏度、寬量程、非線性誤差小、外圍電路簡單等優點;對設計的敏感元件結構參數進行了計算,並利用有限元法進行了模擬分析,根據模擬結果得出了優化參數;在確定敏感結構的基礎上,研究了敏感元件採用體硅微機械加工工藝製作的工藝流程和關鍵工藝技術;對敏感晶元內部的c - v介面電路進行了原理設計與分析,利用差動測量技術得到由振動引起的微小電容變化量,經c - v介面電路進行相位調制處理,然後通過解調輸出與加速度成正比的電壓信號。The controlled object hyvp ( hydraulic pressure vibration platform ) has the property of big loading pressure and rating power, so it need considerable transmitted and control power, it also has the property of high - level math model, and narrow frequency width in closed - loop, and bad stability. this thesis is based on the hpvs in the “ tiema project ”
被控對象(液壓振動臺)具有負載壓力和額定功率相當大的特點,因此要求傳輸和控制的功率要相當可觀;而且它還具有數學模型階數高、閉環頻帶寬度窄、穩定性差等特點。The main job proceeded : collecting the data through investigation, summery the chracteristic of the quiver of the imported 300mw set to solve the quiver problem of the imported 300mw set, basing on the # 1, # 2 sets of the jingyuan ins corp and choosing the effiction of the aggravated plane, the changed stiffness of the # 4 bearing and # 7 bearing obtained the test result which can be used to be the conductor to solve the too bad quiver problem of # 5, # 6 axletree tiles in the # 1, # 2 sets of the jingyuan ins corp. outcome of the paper : analyse and sum up the main reason of the imported 300mw set ' s quiver through see much literature
針對靖遠第二發電有限責任公司# 1 、 # 2機組振動的具體情況,選擇各加重平面對軸系振動的影響、 # 4軸承變剛度、 # 7軸承變剛度變標高等項目,在300mw軸系模擬試驗臺上進行了模擬試驗,獲取了大量的試驗數據,得出了具有實際指導意義的試驗結論;針對靖遠第二發電有限責任公司# 1 、 # 2機組發電機# 5 、 # 6軸承瓦振過大的問題,通過剛度調整試驗的方法,較好的解決了問題。通過本文研究取得了如下成果:在閱讀了大量文獻資料的基礎上,對國內引進型300mw火電機組的振動特徵、振動的主要原因進行了分析和總結。Abstract : since piezoelectric resonant filter can not effectively prohibit higher - frequency harmonic, the mechanism of this problem has been discussed by means of a specific example which shows that there exists lots of undesirable resonant frequencies of piezoelectric that would let pass undesirable signals. to solve this problem , an ameliorated electrostatic mechanical resonant filter is proposed and a specific case is demonstrated. the example of electrostatic resonant micro - bridge asserts that by adjusting the gap of exciting capacitance the higher - frequency vibrating model of micro - bridge cannot be excited based on orthogonal character of intrinsic vibrating shape of micro - bridge, so that this kind of resonant filter can effectively filter out undesirable higher - frequency harmonic
文摘:提出壓電諧振濾波器不能很好地濾除高頻諧波的問題,結合一個具體例子理論推導了壓電諧振濾波器存在許多干擾諧振頻率,從而不能有效濾除一些特定頻率的干擾信號.為了解決這個問題,提出一種改進型的靜電激勵諧振濾波器.為了說明其可行性,具體分析了改進型雙端固支微梁靜電激勵諧振濾波器,理論推導證實基於雙端固支微梁的各階振型正交的原理,通過適當調整激振電容的間距,雙端固支微梁的高階振動模態受到很好的抑制,因此這種諧振濾波器可以有效阻止濾波器中心頻率的高頻諧波的通過Since piezoelectric resonant filter can not effectively prohibit higher - frequency harmonic, the mechanism of this problem has been discussed by means of a specific example which shows that there exists lots of undesirable resonant frequencies of piezoelectric that would let pass undesirable signals. to solve this problem , an ameliorated electrostatic mechanical resonant filter is proposed and a specific case is demonstrated. the example of electrostatic resonant micro - bridge asserts that by adjusting the gap of exciting capacitance the higher - frequency vibrating model of micro - bridge cannot be excited based on orthogonal character of intrinsic vibrating shape of micro - bridge, so that this kind of resonant filter can effectively filter out undesirable higher - frequency harmonic
提出壓電諧振濾波器不能很好地濾除高頻諧波的問題,結合一個具體例子理論推導了壓電諧振濾波器存在許多干擾諧振頻率,從而不能有效濾除一些特定頻率的干擾信號.為了解決這個問題,提出一種改進型的靜電激勵諧振濾波器.為了說明其可行性,具體分析了改進型雙端固支微梁靜電激勵諧振濾波器,理論推導證實基於雙端固支微梁的各階振型正交的原理,通過適當調整激振電容的間距,雙端固支微梁的高階振動模態受到很好的抑制,因此這種諧振濾波器可以有效阻止濾波器中心頻率的高頻諧波的通過Research methods of expansion joint ' s mode and harmonic response were systemically studied and a fea modeling & post process software for project designer was built in this article. and it may contribute much to theory and project practice for expansion joint
本文工作不僅較系統地完成了波紋管膨脹節振動模態與響應分析方法的研究,還為工程設計人員提供了基於參數化的有限元建模及后處理軟體,具有一定的理論意義和重要的工程應用價值。Thus, the vibration simulation calculation procedure has certain directive significance., to analyze and predict the comfort of the vehicle
因此,本文所開發車輛振動模擬計算程序,對分析、預測車輛的平順性是具有一定的指導意義的。At last, we propose a method to generate two mode su ( 1, 1 ) intelligent states for the center of mass and relative motional modes for two trapped ions. in our scheme, only three laser beams are employed, and their directions are all the same as the direction of the two trapped ions " alignment. under some initial conditions, our desired states are obtained as the steady - state solution to the master equation of the system
最後我們在此模型之上提出了一種新的運用離子對的質心振動模和相對振動模進行雙模su ( 1 , 1 )智能態的制備方案,它是系統在適當的初始條件下達到穩態時自動生成的態,它不必通過控制繁雜的相互作用參數而得到,因此該方案具有很大的實際應用價值。This paper constructs 2d and 3d models of srm and analyzes the vibration model with the finite element analysis software ansys, and studies the affect of the stator ' s structure on the srm vibration behavior, the contrast with experimental result implies that the fea model is close to the real srm for analyzing the vibration characteristics of it
本文以有限元分析軟體ansys為工具,建立了sr電機二維和三維的有限元分析模型,分析計算了sr電機的振動模態,研究了sr電機定子結構對其振動模態的影響,並與實驗結果進行了對比分析,表明所建立的二維有限元模型對分析sr電機的振動特性有較好的精度。Chapter four introduces the basic theories of continue hidden markov models ( chmm ). the new method of faults diagnosis based mixture density chmms directly by the vibration ar coefficients vectors of rotating machine is proposed, and then the dynamic patterns presented in run - up process of rotor machine are successfully recognized. at last compares the two faults diagnosis methods of dhmm and chmm, and points out the advantages and disadvantages of the two methods
第四章:在連續隱markov模型( chmm )的基本理論基礎上,提出了直接利用振動信號ar系數特徵矢量序列建立混合密度chmm的故障診斷新方法,並對轉子升速過程的振動模式進行了成功的識別;對dhmm和chmm故障診斷方法進行了對比分析,指出dhmm方法具有演算法穩定、計算速度快、識別精度高等特點,對于chmm方法只要通過合理選擇特徵參數也能得到高的識別精度。分享友人