In order to analyze the sealing performance of a new designed premium threaded connection,this paper studies the sealing reliability and sensitivity of the premium threaded connection at its most dangerous load condit...
the Fundamental Research Funds for the Central Universities,China
Many practices of the rotor spinning show that the false twist effect of the navel is much more complicated than that of the one point based friction model. Both ends of the yarn's twist and torque changes were analy...
National Natural Science Foundation of China(No.50975246)
A new type of differential double-stator swing hydraulic motor, based on double stator structure, was introduced. Compared with the traditional swing hydraulic motors, it could provide various kinds of rotational spee...
A reformed PID (Proportional-Integral-Differential) motor controller is developed for the ideal winding performance. It is verified that the PID motor controller can largely improve the mechanical performance and rais...
In twisting a yarn running over a guide surface, the twist inserted into the part in front of the guide is impeded to transmit freely to the part behind the contact zone. A new device has been set up for investigating...
This paper reports a recent development of a yarn modification process to produce torque balanced singles spun yarns. Taking advantages of the core-sheath structure of unconventional spun yarns, we have developed a ya...
In this paper, the formula for calculating the power consumption of a bare spindle(without bobbin) is introduced, which is suitable to all spindle of similar structure. The results of calculation for D1203 spindle agr...