A dynamic modeling approach for a high-speed winding system with twin-rotor coupling

Abstract

This paper continues the previous study and presents a dynamic modeling approach for a high-speed winding system. To meet the requirements of high-speed winding, a twin-rotor coupling structure is adopted in the winding system. It is a complex spindle system, due to its high speed, heavy load, frequency-dependent coupling parameters, and time-varying rotational speed. In this paper, an approach to establishing a finite element model of the winding system is proposed to predict its dynamic behavior characteristics during the winding process. First, the spindle and contact roller models of the discrete single component are developed based on Timoshenko beam theory. Bending, transverse shear effects, and gyroscopic moment are considered in the models. The contact stiffness between the contact roller and the packages to be wound on the spindle is simplified by a nonlinear spring. The contact stiffness is identified by dynamics analysis in ANSYS® 17.0. Next, a fully dynamic model of the winding system, which consists of the spindle subsystem, the contact roller, and the flexible coupling elements, is established. Third, the Newmark method is used to develop the program to solve the dynamic equations in MATLAB® 2013b. Finally, the effects of the supporting system and contact state on the winding system's dynamic response are investigated. The results indicate the model of the winding system presented in this paper is suitable for predicting dynamic performance during the winding process.

Identification of dynamic contact parameters between contact roller and filament package

“…However, the experiment results and literature values still had differences, which could be caused by the different packages' density, winding tension, the filament type, the contact roller's diameter, and so on. Moreover, the results of the equivalent contact stiffness in this article are in agreement with Hou et al, 5 but the values are greater than the literature values. That is because the equivalent radial Young's modulus of the package of the literature is a constant.…”

“…Winding regularities of the high-speed winding system are shown in Figure 3. 5 Spindle rotation speed means the rotation speed of the spindle and the packages in the winding process from empty to full package.…”

“…[1][2][3] This causes the spindle, the filament packages, and the contact roller to form a coupling flexible twin-rotor system. 4,5 In particular, there is no relative slip at the contact area between the contact roller and the filament packages, avoiding damage to the filament from the package surface.…”

“…18 Hou et al assumed that the equivalent compressive modulus of the package is a constant, and identified equivalent contact stiffness by dynamics analysis in ANSYS. 5 In this paper, a method of DCPs identification is proposed based on the forced non-resonance method. First, the identification formulas of the equivalent contact stiffness and the equivalent contact damping were derived based on the single-degree-of-freedom system, and the corresponding experimental device was developed.…”

A dynamic modeling approach to the moving filament during high-speed winding by absolute nodal coordinate formulation

“…[2][3][4][5] For the winding of the polyester filament, Wang et al 1 carried out finite element modeling and dynamic analysis for the complex twin-rotor system of the high-speed winder, aimed to enable the spindle to be smoothly wound according to the requirements of speed changes during the winding. Hou et al 6 established the dynamic model of the twin-rotor system formed by the contact roller and the package. Hou et al's work also showed that the formation of the package and the precise placement of the polyester filament are the focus of the winding system.…”