共變矢量 的英文怎麼說
中文拼音 [gòngbiànshǐliáng]
共變矢量
英文
covariant vector-
At first the paper begin to study the foundation of digital curved face and space meshing principle, introduce the basic knowledge of curve theory and curved face theory, explain the mathematical tools of vector turning and coordinate conversion in the paper ; analyse the motion and relative motion of rigid body, provide the condition of gear driving continuous contact and equation of conjugate meshing
論文首先從參數化曲面和空間嚙合原理基礎出發，介紹了曲線論和曲面論的基本知識，對課題研究重的數學工具矢量回轉和坐標變換進行了說明;分析了剛體的運動和相對運動，根據空間嚙合原理給出了輪齒傳動連續接觸的條件和共軛條件方程。Suppression of common - mode voltage for matrix converter based on svpwm
空間矢量調制矩陣變換器共模電壓的抑制Novel current modulation approach for the vector control of mc - pmsm system
一種減少矩陣變換器共模電壓的空間矢量調製法Taking the meshing theory of conjugate curved surface as a foundation, utilizing array method of rotation transformation of vector, the meshing equation and contour surface equation of conical cam mechanism with swinging conical roller follower were analyzed and derived, and the calculation formula of pressure angle and synthetic curvature of the mechanism was presented, thus laid a solid theoretical foundation for enhancing the machining accuracy of conical cam, improving its processing method and achieved the integration of cam cad / cam
摘要以共軛曲面嚙合理論為基礎，運用矢量的旋轉變換矩陣法，分析並推導了圓錐滾子擺動從動件圓錐凸輪機構的嚙合方程和廓面方程，並給出了機構的壓力角和綜合曲率的計算公式，為圓錐凸輪加工精度的提高，改進其加工方法，實現凸輪cad / cam一體化奠定了堅實的理論基礎。Because the output voltage of pwm inverter is dissymmetry instantly, the common mode voltage appears as a result
由於pwm變頻器的三相輸出電壓在瞬間並不對稱，所以導致電機三相定子繞組的電壓矢量和不為零，從而出現共模電壓。分享友人