Enhanced Central System of the Traversing Rod for High-Performance Rotor Spinning Machines

Valtera, Jan; Žabka, Petr; Beran, Jaroslav

doi:10.1515/aut-2015-0038

Cited by 2 publications

(1 citation statement)

References 3 publications

(7 reference statements)

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“…Centrifugal force generation is inevitable in the course of high-speed rotation of the rotor, the stress and deformation generated thereof would impose an adverse impact on the structure of the rotor body. 12 In a bid to prolong the working life of the rotor, it was vital to reduce the maximum stress and deformation to the greatest extent, thereby defining the constraint function of the state variable, as shown in equation (3): …”

Section: Optimum Designmentioning

confidence: 99%

Numerical simulation of airflow field in rotor spinning channel based on dynamics optimization

Qiu

Yan²,

Huang

et al. 2023

Textile Research Journal

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To respond to high-speed characteristics and complicated airflow of the air-extraction rotor, the paper takes advantage of ANSYS parametric design language to develop the parametric finite element modeling program by taking the geometric feature of the slip plane as the design variable, so as to propose a mathematical model applicable to dynamics optimization of the rotor. The optimal design parameters of the slip plane are obtained through dynamics optimization ( α ≈ 13.92°, L ≈ 11.17 mm), and the centrifugal stress and static deformation of the rotor body are further reduced while increasing its fundamental frequency by about 7.15%, so that it can adapt to higher safety critical speed. The RNG k- ε turbulence physics model is applied to the numerical simulation of the airflow field in the optimal spinning channel, and a computational domain of single-phase steady fluid with nonstructural mesh is constructed by using ICEM CFD and FLUENT software. On this basis, the simulation result with excellent convergence of the flow field is obtained through the SIMPLE algorithm and pressure-velocity coupled solution. In addition, by virtue of the two-dimensional and three-dimensional flow field characteristic analysis for key fields (like the rotor wall, fiber pipeline, false twister, collecting groove, inlet and outlet), the airflow field state in the spinning channel (like the static pressure, dynamic pressure, velocity vector field, turbulence intensity and streamline trajectory) is confirmed, which will be conducive to gain a deep insight into the open-end spinning mechanism of the air-extraction rotor.

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Section: Optimum Designmentioning

confidence: 99%