Dynamic characteristic analysis of mold oscillator including improved gear mesh model and cam profile for eccentric shaft

Park, Yonghui; Park, Hoon Cheol

doi:10.1007/s12206-014-1014-5

Cited by 6 publications

(2 citation statements)

References 14 publications

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“…Currently, non-sinusoidal oscillation research mainly focuses on the oscillation waveform function and oscillator. Therefore, the non-sinusoidal oscillator with lower cost, high reliability and precision is pursued by metallurgical industry [1]- [4].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Non-Sinusoidal Oscillator Driven by Double Servomotors for Continuous Casting Mold

et al. 2020

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To improve the surface quality and casting speed of the slab further, a new type mold oscillator synchronously driven by double servomotors was proposed in this paper. The experimental prototype was designed and manufactured. For the non-sinusoidal oscillator, the waveform modification ratio could be adjusted during the steel continuous casing operation. Firstly, the working principle of the oscillator was described. Secondly, the rotating rules of the servomotor to realize non-sinusoidal oscillation waveform for entire function were given. Finally, the laboratory experiments were made. The experiment results show that the error of the two-side oscillation curves is smaller and the actual technological parameters are close to the theory and the oscillator can realize non-sinusoidal oscillation well. This kind of non-sinusoidal oscillator provides a feasible scheme for reducing oscillator investment, increasing casting speed and enhancing slab quality. INDEX TERMS Continuous casting, mold, non-sinusoidal oscillation, oscillator, experiment. CHAO ZHOU received the Ph.D. degree from Yanshan University, China, in 2019. His main research interests include metallurgical machinery and intelligence, solidification theory of metals, and high efficient continuous casting techniques. XINGZHONG ZHANG is currently a Professor with Yanshan University, China. He is the author or coauthor of more than 80 research articles. His main research interests include machine theory and design, high-efficient continuous casting techniques, and the mechanics of solidification and creep of metal and its applications.

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Section: Introductionmentioning

confidence: 99%

Investigation of Non-Sinusoidal Oscillator Driven by Double Servomotors for Continuous Casting Mold

et al. 2020

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“…To reduce the oscillation marks, a mechanical oscillating system with a non-sinusoidal oscillation has been considered. Especially, converters (e.g., four-bar linkage, elliptical gear) that change a dynamic response to a required response have been investigated [6]. The research on elliptical gears showed dynamic characteristics according to system parameters, and succeeded in reducing the oscillation marks [7].…”

Section: Introductionmentioning

confidence: 99%

Caster with non-sinusoidal profile for use in mold oscillator

Park

2016

J Mech Sci Technol

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The prototype of mold oscillator that uses a non-sinusoidal generator was modified using Inverse dynamics and Multi-body dynamics. We maintained a basic structure of the mold oscillator including the motor, the gear, the leaf-spring and the caster. To reduce the coupling effect, the non-sinusoidal generator was replaced by a hollow cylinder that had non-sinusoidal surface. The system parameters were obtained from previous research [1], and a new design of the connecting rod between the cylinder and the leaf spring was analyzed by sensitivity analysis. A definition of the detailed system component including gear mesh, and non-sinusoidal surface, Lagrange's equation, Fourier series, and Cam profile synthesis was used to define an equation of motion. The response of oscillating system was derived by a direct integration method. The model was simulated according a specific assumption for each component, and a control system corresponding to real operation was applied. Dynamic responses are displacement, velocity and acceleration of each component. All responses from these simulations were analyzed in the time-frequency region by Fast Fourier transform. Using the model, sensitivity analysis about design variables was also executed about operating performance.

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Synchronous Control Model and Oscillation Principle of Swing Crank Type for Continuous Casting Mold

Zhou,

Xu,

Cao

et al. 2024

Trans Indian Inst Met

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Dynamic characteristic analysis of mold oscillator including improved gear mesh model and cam profile for eccentric shaft

Cited by 6 publications

References 14 publications

Investigation of Non-Sinusoidal Oscillator Driven by Double Servomotors for Continuous Casting Mold

Investigation of Non-Sinusoidal Oscillator Driven by Double Servomotors for Continuous Casting Mold

Caster with non-sinusoidal profile for use in mold oscillator

Synchronous Control Model and Oscillation Principle of Swing Crank Type for Continuous Casting Mold

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