nonplus
发表于 2025-3-26 22:12:50
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Harpoon
发表于 2025-3-27 04:56:12
Study on Interface and Joint Properties of Aluminum Alloy by High-Power Ultrasonic Welding,ology is one of the branches. In this paper, Cu and Al foils with thickness of 0.3 mm are welded by high-power ultrasonic welding method. Using relevant instruments for copper alloy organization characteristics, interface temperature, and interface mechanical properties test, the corresponding resul
fibroblast
发表于 2025-3-27 09:07:25
Analysis of Nozzle Flow Based on Small Disturbance Equation Using Successive Over Relaxation Methodthe boundary in the purely subsonic case and the purely supersonic case. The small disturbance equations (SDE) derived from the continuity equation are used in this calculation. To get the numerical solution of velocity potential, the successive over relaxation method (SOR) with different relaxation
贪心
发表于 2025-3-27 12:17:23
On Optimal Tooth Profile Modification of Helical Gears Based on High Precision FEM,tact analysis (TCA) and the optimization of the modification parameters, the paper established a 3D finite element model (FEM) of the helical gear with TPM. Loaded TCA and stress calculations of helical gears are carried out precisely. The effects of the modification parameters on transmission error
FLIRT
发表于 2025-3-27 15:51:26
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染色体
发表于 2025-3-27 21:47:17
Mechanism of Collision and Adhesion Between Adhesive Impact Ball and Spacecraft,hange the angular momentum and estimate the inertial parameters of the object. This paper investigates the mechanism of the collision and the adhesion between the impact ball and the spacecraft are studied. Firstly, the structure of the impact ball is analyzed. The impact ball is designed as a rubbe
下垂
发表于 2025-3-27 23:35:18
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生来
发表于 2025-3-28 05:34:52
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奴才
发表于 2025-3-28 07:57:47
Route to a Chaotic State in the Wake of a NACA0015 Airfoil at Post-stall Angles of Attack,f the airfoil were studied. With the increase in the angles of attack and the Reynolds number, it reveals a route of the transition in the wake of NACA0015 foil from steady to chaotic flow. We find that the flow transits from steady flow to a chaotic state by a sequence of successive period-doubling
后退
发表于 2025-3-28 13:30:48
Research on Kinematic Characteristics of Revolving Chain Shell Magazine,ell magazine system is deduced by considering the change of the equivalent moment of inertia of the shell cartridge at different positions of the chain. Under the changeable condition of the motion law of the driving sprocket, the time-varying characteristics of the equivalent moment of inertia and