A study of 3D finite element modeling method for stagger spinning of thin-walled tube

Wang, Jin; Ge, Ting; Lu, Guodong; Li, Fēi

doi:10.1631/jzus.a1500180

Cited by 8 publications

(5 citation statements)

References 21 publications

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“…The characteristic absorption wavelength of atractylenolide I is 274 nm, and is the same for atractylenolide II, III and atractylon (218-219 nm). To obtain optimal sensitivity and anti-interference ability, 274 nm was selected as the optimal detection wavelength for the analysis of atractylenolide I, and 218 nm was selected as the optimal detection wavelength for atractylenolide II, III and atractylon in a number of reported methods [28][29][30][31]. The optimal selection of the detection wavelength can improve the sensitivity.…”

Section: Selection Of Detectorsmentioning

confidence: 99%

Simultaneous Analysis of Hydrophobic Atractylenolides, Atractylon and Hydrophilic Sugars in Bai-Zhu Using a High-Performance Liquid Chromatography Column Tandem Technique

Gu,

Nie,

Guo

et al. 2023

Foods

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An analytical method was established using high-performance liquid chromatography coupled with diode array and evaporative light scattering detectors (HPLC-DAD-ELSD) with -C18 and -NH2 column tandem for the simultaneous determination of hydrophobic atractylenolide I, II, III, atractylone and hydrophilic compounds glucose, fructose and sucrose in the dried rhizome of Atractylodes macrocephala Koidz (a natural raw material for health foods, Bai-Zhu aka. in Chinese). The method combines the different separation capabilities of reversed-phase liquid chromatography and hydrophilic interaction liquid chromatography. It can provides a new choice for the simultaneous determination of hydrophilic and hydrophobic compounds in traditional Chinese medicines and health foods. It provided a reference method for the quality control of Bai-Zhu. The results showed that the linear correlation coefficients of the established column tandem chromatographic method were all greater than 0.9990, the relative standard deviation was 0.1–2.8%, and the average recovery was 96.7–103.1%. The contents of atractylenolide I, II, III, atractylone, fructose, glucose, and sucrose in 17 batches of Baizhu were 172.3–759.8 μg/g, 201.4–612.8 μg/g, 160.3–534.2 μg/g, 541.4–8723.1 μg/g, 6.9–89.7 mg/g, 0.7–7.9 mg/g, and 1.2–21.0 mg/g, respectively.

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Section: Selection Of Detectorsmentioning

confidence: 99%

Simultaneous Analysis of Hydrophobic Atractylenolides, Atractylon and Hydrophilic Sugars in Bai-Zhu Using a High-Performance Liquid Chromatography Column Tandem Technique

Gu,

Nie,

Guo

et al. 2023

Foods

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“…The downward and axial movements of the rollers cause plastic deformation of the workpiece into a thin-walled long tubular part. 19 Counter-roller spinning uses internal rollers instead of mandrels and applies certain spinning forming forces on the workpiece by internal and external rollers to induce the plastic deformation simultaneously on the inner and outer surfaces of the workpiece. 20 The principle of counter-roller spinning is shown in Figure 2.…”

Section: Forming Principlementioning

confidence: 99%

A research of spinning machine: Effect of different structures of feed system on the static and dynamic characteristics

Luo

Zheng

et al. 2019

Advances in Mechanical Engineering

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The ball screw and linear guide are important transmission components of a feed system, and their structure directly influences the static and dynamic characteristics of a machine tool. This study used finite element analysis to analyze the static and dynamic characteristics of the spinning machine with different structural designs. Results showed that the feed system is the key functional component that influences the static and dynamic characteristics of the entire machine. A design method is proposed for the structural optimization of the spinning machine based on the structure of the ball screw and the linear guide. Four three-roller models and five counter-roller models are established. A single-factor analysis method is adopted for the contrastive analysis of the static and dynamic characteristics. Finally, the structure of computer numerical control spinning machine with the optimal feed system structure is optimized. The analysis indicates that the reasonable optimization of the structure of the ball screw and the linear guide can effectively improve the optimization efficiency and substantially improve the static and dynamic characteristics of the computer numerical control spinning machine.

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“…According to Figure 6, the ratio first reaches about 0.65, and decreases thereafter. However, in the rest of the process time, this ratio remains below 0.1, which denotes that the dynamic effects in these simulations have been controlled properly [25,26].…”

Section: Numerical Proceduresmentioning

confidence: 99%

Experimental study and FEM analysis of forward hot dieless spinning

Sedighi

Jalili

Kasaeian-Naeini

2018

Mechanics & Industry

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In this study, the forward hot dieless spinning method is employed in order to fabricate conical tubes using thick aluminum. The process is first examined numerically and then verified by an experimental work. In the numerical study, a 3-D dynamic explicit model is used to solve a common problem in the modeling of the spinning process, the tube is fixed and the roller rotates around the tube. The strain distribution in the tube at various forming passes is studied. The numerical results show that the circumferential strain distribution in different positions of the tube has a negative value whose value increases toward the free end of the tube. Besides, the results indicate that the hardness of the sample increases by about 18% due to the hot dieless spinning process and such a hardness augmentation is obvious along the thickness of the formed tube.

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A study of 3D finite element modeling method for stagger spinning of thin-walled tube

Cited by 8 publications

References 21 publications

Simultaneous Analysis of Hydrophobic Atractylenolides, Atractylon and Hydrophilic Sugars in Bai-Zhu Using a High-Performance Liquid Chromatography Column Tandem Technique

Simultaneous Analysis of Hydrophobic Atractylenolides, Atractylon and Hydrophilic Sugars in Bai-Zhu Using a High-Performance Liquid Chromatography Column Tandem Technique

A research of spinning machine: Effect of different structures of feed system on the static and dynamic characteristics

Experimental study and FEM analysis of forward hot dieless spinning

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