Friction Parameters Dynamic Change and Compensation for a Novel Dual-Drive Micro-Feeding System

Lu, Ziteng; Feng, Xianying; Su, Zhe; Liu, Yandong; Yao, Ming

doi:10.3390/act11080236

Cited by 4 publications

(2 citation statements)

References 22 publications

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“…So even if the whole -component-based identification method (ACIM) proposed by Feng [25] is accurate for each structure, the identification parameters are unknown since this approach does not account for the force conditions in various motion states caused by the structural peculiarity of the TDMS. Although Feng [26] discovered the impact of various base speeds on friction characteristics, he overlooked the impact of various operating conditions on the outcomes of the identification process.…”

Section: The Gms Friction Modelmentioning

confidence: 99%

A Novel Friction Identification Method Based on a Two-Axis Differential Micro-Feed System

Zhang,

Feng,

et al. 2023

Actuators

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Ultra-precise actuation at extremely low speeds over a broad range is a major challenge for advanced manufacturing. A novel two-axis differential micro-feed system (TDMS) has been proposed recently to overcome the low-speed crawling of the worktable. However, due to the diversity of the force states of the TDMS, the methods for identification identifyingof friction parameters traditionally (like the all -components identification method, ACIM) didn’t did not perform well. And many studies on the performance of the pre-sliding phase of the TDMS are missing. Therefore, a novel whole-system identification method (WSIM) based on the TDMS was proposed in this paper to precisely identify the friction parameters under different states of motion. The generalized Maxwell sliding (GMS) friction model was also applied to improve the accurate description of the pre-sliding. A novel corrected Stribeck curve based on the TDMS (TDMSSC) was proposed under the uniqueness of the TDMS structure. Control experiments showedn that the WSIM has higher precision and stability rather thancompared torather than the ACIM, and the correction of the Stribeck curve for the TDMS makes a contribution to the performance. This method significantly improves the accuracy and stability of the machine tool drive system.

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Section: The Gms Friction Modelmentioning

confidence: 99%

A Novel Friction Identification Method Based on a Two-Axis Differential Micro-Feed System

Zhang,

Feng,

et al. 2023

Actuators

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“…However, because the actuator employed in the existing dual drive feed system is a ball screw pair, when the system enters nano-scale control, the unevenness of the ball and the multibody dynamic coupling characteristics have a significant impact on motion control at very low speeds, which leads to difficulties in achieving accurate and uniform displacement under nano-scale conditions. Therefore, based on previous research [7], this paper presents a novel dual drive sliding feed system that replaces the ball screw in the conventional dual drive feed system with a low-cost sliding screw pair, aiming to achieve uniform and stable displacement resolution under extremely low-speed conditions. However, due to the addition of the nut motor and the nut bearing and the multipoint contact inside the sliding screw pair, more frictional heat will be generated during operation.…”

Section: Introductionmentioning

confidence: 99%

Thermal Model and Thermal Analysis of the Dual Drive Sliding Feed System

Li,

Liu,

Feng

et al. 2023

Machines

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The dual drive sliding feed system can obtain a uniform and stable resolution at extremely low speeds and significantly reduce the system’s nonlinear friction. However, the numerous thermal sources within the system and the multipoint sliding contact during transmission result in a significant temperature rise, leading to considerable thermal deformation and errors. Moreover, the responsive mechanism of the thermal characteristics needs to be clarified. Therefore, firstly, a frictional torque model of the engagement of the screw and nut is established, and the heat generation, heat transfer, and thermal contact resistance (TCR) are solved. Then, based on the solution, a finite element thermal simulation model of the dual drive sliding feed system is established, and experiments are performed for validation. The results show that the error in temperature at the measuring point is less than 2.1 °C, and the axial thermal elongation of the screw is less than 6.2 µm. Finally, the thermal characteristics of the feeding system under various operating conditions are analyzed. The results show that the established thermal simulated model can effectively describe the dynamic thermal characteristics of the dual drive sliding feed system during operation. The effects of the rotational speed and ambient temperature on the dynamic thermal characteristics of the dual drive sliding feed system are investigated separately. The temperature increase in each part of the screw during the operation is characterized.

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Modeling and analysis of thermal behavior of feed system based on full-state thermal contact resistance

Liu,

Feng,

et al. 2024

Int J Adv Manuf Technol

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Friction Parameters Dynamic Change and Compensation for a Novel Dual-Drive Micro-Feeding System

Cited by 4 publications

References 22 publications

A Novel Friction Identification Method Based on a Two-Axis Differential Micro-Feed System

A Novel Friction Identification Method Based on a Two-Axis Differential Micro-Feed System

Thermal Model and Thermal Analysis of the Dual Drive Sliding Feed System

Modeling and analysis of thermal behavior of feed system based on full-state thermal contact resistance

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