負力矩 的英文怎麼說
中文拼音 [fùlìjǔ]
負力矩
英文
negative moment-
Positive aileron deflection produces an anti-clockwise moment about the x axis.
正的副翼偏轉角產生繞X軸的負方向力矩。Positive aileron deflection produces an anti - clockwise moment about the x axis
正的副翼偏轉角產生繞x軸的負方向力矩。Abstract : constraining moment between winding beam and cantilever beam should be considered when cantilever beam and its complete winding beam are in the case of bearing heavy load, even working carriers. this paper uses the the ory of constraining moment of crossing component to solve this problem, also st ates the calculating theory of constrainging moment, and does deduction of formula
文摘:鋼筋混凝土懸臂樑上與其整澆的邊梁在負荷較重，甚至做為重要承重構件情況下，應考慮邊梁與懸臂梁相互之間的約束力矩.本文採用相交構件約束力矩理論來計算解決這一問題，並對約束力矩計算原理進行論述和公式推導In this paper, the drive theory of the large ratio friction transmission is studied ; a new type elliptical cam wave generator is designed ; the large ratio friction transmission prototype is designed and manufactured ; based on the ansys finite element method software, structure of the elliptical cam is analyzed ; precision index of the manufactured large ratio friction transmission prototype, such as transmission accuracy, least step, stability of the least step, load capacity is measured by the absolute rotary encoder. by analyzing the measurement data and research content, it is think that the new elliptical cam wave generator could overcome a good many problems brought by processing errors, facilitate size precision adjustments, input moment can be achieved in the form of a pure force couple importing ; through this study, " the large ratio friction transmission prototype " could apply in practical engineering basically
本文研究了大速比摩擦傳動的傳動理論;設計了新型橢圓凸輪波發生器，設計製作了大速比摩擦傳動樣機;用軟體ansys對所設計的橢圓凸輪結構進行了有限元分析;用19位絕對式編碼器測試了大速比摩擦傳動機構的傳動精度、最小步距、最小步距的穩定性以及帶負載能力等各項精度指標;對測量數據和研究內容進行了歸納和整理，認為新型橢圓凸輪波發生器克服了加工誤差帶來的諸多問題，新型橢圓凸輪波發生器可以進行尺寸精度調整，能夠達到輸入力矩以純力偶的形式輸入;通過本項研究，基本可以使「大速比摩擦傳動機構」在工程中得以應用。In this paper the research object is new model alternating current servo system. according to the request that was the static state - dynamic state precision and the celerity of response brought forward by task book, aimed at the bad circs of large inertia variety load and the sway of launch flat, we made deep research
本文以新型交流伺服系統作為研究對象，依據設計任務書所提出的靜態、動態精度和響應快的要求，針對大慣量、變負載和力矩干擾等惡劣情況之下的伺服控制問題進行了深入研究。The minimum reinforcement rate has little effect on reinforcement in columns. ( b ) when considering the bars in slab participate in beams against negative flexure, four or six times slab - thickness on each side of web can be defined as the effective flange width of slab by intermediate or rare earthquake actions
當考慮板筋對梁端負彎矩承載力的提高作用時，可在設防烈度地震和罕遇地震作用下分別取每一梁側四倍、六倍板厚范圍作為板的有效寬度。With the testing system, the mechanical load is applied and the relationship between the mechanical load and the revolution speed of the ultrasonic motor is studied under the vacuum condition
通過該裝置實現了對超聲電機負載力矩的施加以及在真空環境下對超聲電機轉速、轉矩的測量。Firstly, under the assumption that the output driving torque generated by the stepper motor of the mirror is constant, such influence analysis is conducted. secondly, a mathematic model of the stepper motor is given. under the assumtion that the input impulse frequence is constant, the rotational motion of the stepper motor of the mirror with the mutual exertions of damping torque, friction torque and disturbance torque generated by satellite platform ' s attitude motion is simulated and analyzed
對衛星平臺姿態振動對紅外相機掃描機構轉動的影響進行了系統深入的模擬分析:首先在步進電機驅動力矩一定條件下，模擬分析了星體姿態運動干擾力矩對紅外相機掃描鏡轉動的影響;接著建立了步進電機的數學模型，在步進電機輸入脈沖頻率一定條件下，模擬分析了步進電機在阻尼力矩、干摩擦力矩、平臺干擾力矩等負載轉矩的共同作用下的轉動情況。In the load simulator, active movement of rudder system causes so - called surplus torque to loading system which used to simulate hinge moment
在電液負載模擬器中，舵機系統的主動運動將對模擬鉸鏈力矩的加載系統產生一種所謂多餘力矩的干擾作用。This study is done for the first time in domestic torpedo business, the mathematic model of cowterrotating motor is established and some special characteristics of torpedo ' s drive cowterrotating dc motor under the load of constant torque or the load of cowterrotating propellers are exposited
這項研究在國內同行中還是首次進行，它建立了魚雷雙轉推進電機的數學模型，揭示了魚雷雙轉推進電機在恆力矩負載和對轉螺旋槳負載下的一些特殊特性。However, the stud welding roots in the negative moment region of the beam are often subjected to the joint action of shear stress cycling of the studs and tensile stress cycling of steel girder flanges
但在負彎矩處栓釘焊趾往往承受栓釘剪應力循環和鋼梁翼緣拉應力循環的共同作用。The laws of internal force distributing of this floor is summarized, such are : ( 1 ) structure as “ orthotropic slabs ” ; ( 2 ) abnormity of internal force distribution ; ( 3 ) greatly changing grads of negative bending values
總結了該樓蓋結構的內力分佈規律，即: （ 1 ）構造上為「正交異性板」 ; （ 2 ）板的內力分佈不均勻; （ 3 ）板的負彎矩值變化梯度大。Therefore, the scientific scholarsboth at home and abroad have been carried series of research work since the 1960s, with some defects still remaining unresolved. the objects of this research are : ( 1 ) to analyze the course of the crack, itsappearing and development, and discuss the major factors influencing the behavior ofthe negative moment region in continuous composite beam. ( 2 ) to establish the modeand formulas of the crack width by the theoretical analysis
本文研究的主要目的是通過對組合梁負彎矩區裂縫的出現、發展的過程分析，討論影響鋼-混凝土連續組合梁負彎矩區受力性能的主要因素，建立了組合梁負彎矩區裂縫計算模式和裂縫寬度的計算公式，並初步探討了連續組合梁合理截面形式。For the cantilever beam, the theoretical stiffness and limited capacity are slightly less than the test ones if considering only the steel beam and the reinforced bars in the negative moment zone with the concrete in the tension zone ignored
結果表明：簡支組合扁梁，忽略彈性中和軸以下受拉的混凝土的影響，採用等效換算截面方法計算所得的剛度和極限承載力與試驗結果比較吻合；懸臂梁只考慮混凝土板中配置的負彎矩鋼筋，忽略混凝土，計算所得的剛度和極限承載力比試驗結果略微偏小，但相差不大。This paper deals with the following three topics with regard to the control of multiple manipulators : 1. deprive the kinematics and dynamical equations of two manipulators with identical structure on the basis of geometry theory, one of which has two links, giving the inverse solution to the kinematics of the system which consists of the manipulators and the grasped object ; 2. by use of load - distributing, design a controller coordinating multiple redundant manipulators whose parameters are known
基於微分幾何理論推導出兩個具有相同結構的二連桿機器人的運動學逆解及與物體所成系統的動力學方程； 2在假設由多個冗餘機器人與物體組成系統的動力學模型確知的前提下，利用負荷分配法，設計了一種不僅能使關節力矩優化且能按照一定比例分配負荷的控制器，解決了以往控制器的一些缺陷，即忽視各個機器人的實際承載力，導致一些負荷力小的機器人卻必須承擔較大的負載，最終損壞機器人； 3In this dissertation, the development survey, research actualities and application prospect of vamt are introduced at first, and the models of kinematics, dynamics and linear motor servo are analyzed then. currently the dynamics model is complex or established mechanically, which restricts the study of control theories. thus this dissertation present a simple and easy - realized control idea, namely, the fore and torque of every leg determined by the inverse - solution of mechanics are regarded as changeable load force ( disturbance ) applied in motor, the elongation of the leg or displacement of sliding is regarded as the output of linear servo system
本文首先介紹了虛擬軸機床的發展概況、研究現狀和應用前景，然後對其運動學、動力學、直線伺服系統模型進行分析，針對目前動力學模型過于復雜或完全從機構學角度建立不便於控制的問題，提出了簡單、易於實現的控制思想，即將虛擬軸機床的動力學方程反解所確定的各桿受力（矩）視為電機的可變負載力，以桿長伸縮量或滑塊位移為伺服系統輸出，從此構成位置閉壞，實現軌跡跟蹤控制。The simulation results show that the controller can guarantee the global asymptotical stability of the system, and the pmsm servo system achieves excellent tracking performance, and is robust to uncertain parameters and load torque disturbance
模擬結果表明，所設計的非線性控制器保證了系統的全局一致穩定性，永磁同步電動機伺服系統獲得了很好的跟蹤效果，並且對參數不確定性及負載力矩擾動具有很好的魯棒性。It analyses the causes to bright image movement, studies principle to compensate image movement, conforms project to compensate image movement, and designs framework to compensate image movement in the article ; to analyze and design configuration of the scanning mirror, to select matters of mirror and its support structures on the principle of consistent line expansion coefficient ; to ascertain type of moment electromotor by most rotating angle speed and most rotating moment which are required by loads in the period to take pictures, as well as by figuration size of electromotor ; to design retarder according as the electromotor parameters ; to design and optimize lightweighted mirror shapes, because the mirror is key part ; to design flexure support structure, to analyze static and dynamic characteristics of the support structure by name of patran program for validating desig n rationality ; to study function of the scanning mirror electric control system ; to test precision of the system, the results indicate the rationality of design of the scanning mirror system
本文通過分析像移產生原因、研究像移補償原理，確定像移補償方案，並根據像移補償原理設計補償機構；分析與設計掃描反射鏡系統結構，根據材料線膨脹系數一致原則，選擇反射鏡及其背部支撐的材料；由掃描反射鏡在擺掃周期內的最大擺掃角速度確定力矩電機的額定轉速，根據負載力矩確定電機的額定轉距，綜合電機外型尺寸等因素，確定執行元件? ?電機的型號；根據所選電機的參數指標，設計1 ： 6速比的減速器；利用patran軟體對掃描反射鏡系統中的關鍵件? ?反射鏡進行輕量化設計與優化；設計反射鏡柔性支撐結構，並通過軟體分析支撐結構的力學特性，驗證反射鏡柔性支撐結構設計的合理性；從原理上研究掃描反射鏡控制系統功能；進行系統精度測試，測試結果表明掃描反射鏡系統設計的合理性。Aiming at wide variations in loads and moment of inertia, large disturbed moment of a permanent magnet synchronous motor position servo system, and the problem of velocity limit to uniform sliding mode control, a cascaded compound slide mode controller was proposed and designed for permanent magnet synchronous motor position servo system
摘要針對某永磁同步電動機位置伺服系統負載力矩和轉動慣量變化大、干擾力矩強的特點，以及統一滑模變結構控制速度限幅的難題，提出並設計了串級復合滑模變結構拉制器。The main factors including prestressing levels, length of negative moment reinforcement and fire case which may have influence on the fail modes of the continuous slabs are examined. fire case which include end span under fire, middle span under fire and end - middle span under fire simulate different room catch fire. the regularity of deflection, prestress and reactions are presented
在連續板的火災行為試驗研究中主要考慮了預應力度、負彎矩筋的長度以及不同的受火工況三個因素，其中不同受火工況包括邊跨受火、中跨受火及邊中兩跨同時受火三種情況，以模擬不同房間失火的情況。分享友人