expansion coupling 中文意思是什麼
expansion coupling
解釋
管線的伸縮接頭-
The ultrasonic motor is a kind of direct driver which is uses the converse piezoelectric effect of the piezoelectricity ceramics, by using transformation and the coupling of each kind of expansion and contraction vibration pattern enlarging the material microscopic distortion by resonate effect and transforming it to macroscopic movement of the rotor or the slide by the friction coupling
超聲波馬達是一種利用壓電陶瓷的逆壓電效應，通過各種伸縮振動模式的轉換與耦合，將材料的微觀變形通過共振放大和摩擦耦合轉換成轉子或者滑塊宏觀運動的直接驅動器。 -
In the joint of lg pex - a pipe, male xocket is pressed to a convex on the inserting part and the fastening ring will contract to fasten up the heating pipe by the fastening of outer nut, and there is also a convex on the ring to offer close coupling by mechanical re - press effect to prevent water from leaking in case of heat expansion
在lg地熱管中的連接部位不僅閥門管套插入部分的凸起部位被機械作用壓密，而且隨著外部螺母被擰緊，使緊固環收縮，從而帶緊熱炕暖氣管，另外由於存在凸起部位，可通過機械作用進行再次壓密，因此可防止由於熱膨脹而引起漏水。 -
The submarine structure is simplified to single or double infinite cylindrical shell stiffened with rings, bulkheads and stringers, focusing on underwater sound radiation from the single shell. the shell motion is described by donnell ' s theory including excitation forces and reactions of rings, bulkheads, stringers and fluid, which leads to the fluid - structure coupling vibration equation. expressing displacements by velocities, applying modal expansion circumferentially and fourier transformation longitudinally result in the shell ' s modal equations of motion
殼體的運動方程採用較為簡單的donnell理論描述，運動方程中包括了激勵力、加筋結構（環肋、艙壁和縱骨）和流場對殼體的作用力，從而組成流場-結構的耦合振動方程，並進一步將方程中的位移用速度表示，然後沿軸線方向進行fourier變換，將速度和各項荷載沿圓周方向進行模態展開，得到了殼體振動的模態運動方程。 -
Butt welding, electro welding, sleeve coupling, ring seal socket, expansion socket, screw - threaded joint and flange
對焊，電熔焊，承插連接，螺紋連接和法蘭連接。 -
Study of numerical simulation of heat, gas and solid coupling flow in high temperature expansion pipe
固耦合流動數值模擬在管式膨脹系統中的研究
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