附加轉矩 的英文怎麼說
中文拼音 [bùjiāzhuǎnjǔ]
附加轉矩
英文
idle torque-
The temperature effect which has been calculated is taken as " thermal load " forced on the body, then such thermal stress is settled as general elasticity mechanics question ; secondly, the thermal stress is taken as " surface force " forced on the body, and the new system stiffness is formed which include the extra stiffness matrix, then it changes the nature frequency of the structure
首先，這篇論文介紹溫度場和熱應力場的有限元方法，建立了三維熱傳導模型計算有溫度場產生的熱應力，計算熱應力時運用了一種轉化思維：將溫度處理為「溫度載荷」 ，這樣就能用彈性力學問題的處理方法來求解熱應力。其次，將熱應力作為結構的「面內力」 ，而面內力產生附加的幾何剛度矩陣，改變了結構的剛度，影響了結構的固有頻率。To improve the capability of the bearing - less slice permanent motor, to reduce the ullage of the motor and the badly additive torque, i design optimization the structure of the rotor pm, and two projects are proposed. one is four pieces rotor pm which is the same magnetized and the other is eight pieces rotor pm which is different magnetized direction
為了進一步改善片狀無軸承永磁電機的動態性能，減小電機的損耗及有害的附加轉矩，優化設計了轉子永磁貼片的結構，提出了四片同向充磁和八片正反向充磁兩種方案。Applies the strict mathematical reasoning, translates the problem of relearning algorithm of redial basis function neural network into the problem additional operation of matrix operation
應用嚴格的數學推理方法，將徑向基函數神經網路的再學習問題轉化為矩陣求逆的附加運算。A open - close mathematic model is introduced into calculation of torsional vibration. results show : kurtosisness and high harmonic will increase when crankshaft have crack. 5. cylinder score is also diagnosed by torsional vibration in this paper, when cylinder score occurring, the friction of piston will decrease the action of air pressure
本文借鑒了裂紋轉子剛度的開閉模型，首次對含有變剛度單元的柴油機動力裝置進行了扭振計算，結果表明柴油機曲軸有裂紋后，扭振的角位移和附加振動力矩的高諧次分量會增加，峭度值增加。Finally, the wave equation of the electromagnetic field of this kind damper is derived from the maxwell ' s equation. the magnetic flux density at the boundary is assumed to be harmonic, so the analytical result of the wave equation is solved. when the rotor rotates, eddy currents flowing inside the conducting material field are caused
最後，應用ahrens的電磁軸承簡化模型，從maxwell方程出發推導了應用於本文所述的被動式電磁阻尼器的波動方程，並用傅立葉級數把矩形磁場展開的諧變磁場作為磁場的邊界條件，通過求解波動方程得到磁場的解析解，從而計算了阻尼器對轉子的電磁力和由渦流引起的切向力產生的阻尼器附加功耗。The contributions done are as follows : according to the mathematical model of doubly fed motor and the theory of vector control, a unit power factor of rotor control scheme is proposed. in the doubly fed adjustment system, in order to control magnetic torque of motor this scheme is designed by controlling the reverse direction between rotor voltage and current to keep the vertical direction between rotor current and flux. it is known from theoretical analysis that for partly decoupling this scheme is only effective under sub - synchronization speed, but not control the system and obtain steady state since speed adjustment system ca n ' t adjust the magnitude of rotor flux under sup - synchronization
而傳統的無速度傳感器雙饋調速矢量控制系統，由於採用磁鏈定向方法，在同步速附近存在較大的工作死區，針對上述問題，本文做了如下的研究工作：本文從雙饋電機的數學模型出發，根據矢量控制的基本原理，提出了一種轉子側功率因數為1的雙饋電機矢量控制方案的設想，即在雙饋調速時採用轉子電流定向的方法，並控制外加轉子電壓與轉子電流始終反相，以保持了轉子電流與轉子磁鏈矢量垂直，通過控制轉子電流的大小來達到控制電機電磁轉矩的要求。This dissertation aims to reveal the influence of maneuver load ( including additional centrifugal force and gyroscopic moment ) on the vibration performance of rotors with sfd
本文旨在揭示機動飛機產生的附加離心力和附加陀螺力矩對擠壓油膜阻尼器以及發動機轉子系統振動特性的影響。The shocking moment after the complete balance of shocking force can get partial balance through the adjustment of eccentric gear in the attached mechanism
振動力完全平街后機構的振動力矩，可通過調整附加機構中偏心齒輪的回轉中心得到部分平衡。分享友人