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Coupling evaluation for material removal and thermal control on precision milling machine tools

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 1, Pages 12-12 doi: 10.1007/s11465-021-0668-9

Abstract: removal (MR) energy as useful energy consumption and ignored the useful energy consumed by thermal controlIn pursuit of energy-efficient, high-precision machining, more attention should be paid to the energyExperimental study indicates that TC is the main energy-consuming process of the precision milling machineIt can provide a foundation for energy-efficient, high-precision machining of machine tools.

Keywords： machine tools cutting energy efficiency thermal stability machining accuracy coupling evaluation

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Gray-box modeling and QFT control for precision servo transmission systems

Xiulan BAO, Xuedong CHEN, Xin LUO, Haocheng ZUO

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 4, Pages 442-448 doi: 10.1007/s11465-011-0242-y

Abstract:

Precision servo transmission systems have widely been applied in industrial equipment to achieve highHowever, due to the presence of friction and uncertainty, the characteristics of precision servo transmissionThis paper proposes two-degrees of freedom (2-DOF) robust position controller for a precision servo transmission

Keywords： precision servo transmission system modeling set membership identification quantitative feedback theory

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Research on the control systems of a precision linear motor drive device

YAN Han, WANG Xian-kui, DUAN Guang-hong

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 3, Pages 260-264 doi: 10.1007/s11465-006-0036-9

Abstract: The model of a precision linear motor drive device (PLMDD) and its control requirements are analyzed.is established, and disturbance-observer based input revising feedforward error compensation robust controlalgorithm, combined with integral-separated proportional integral derivative (PID) control algorithmThis includes feedback control algorithm and feedforward control algorithm.precision of PLMDD from ±5 μm to ±2 μm and dramatically improves its anti-disturbance ability.

Keywords： feedforward tracking ±5 anti-disturbance performance algorithm

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High-precision gyro-stabilized control of a gear-driven platform with a floating gear tension device

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3, Pages 487-503 doi: 10.1007/s11465-021-0635-5

Abstract: This study presents an improved compound control algorithm that substantially enhances the anti-disturbancestiffness and more complex meshing friction are also induced by the tension device, which deteriorates the controlsystem with a floating gear tension device, which shows a maximum 76% improvement in stabilization precision

Keywords： inertially stabilized platform floating gear tension device nonlinear friction disturbance compensation proportional multiple-integral observer

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Precision control system of two-DOF stage with linear ultrasonic motor

ZHANG Hanlei, SHI Yunlai, ZHAO Chunsheng

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 4, Pages 421-425 doi: 10.1007/s11465-008-0063-9

Abstract: Using an appropriate control method, linear ultrasonic motors can be used in applications requiring highIn this paper, a closed loop PI control system is designed to achieve high position accuracy during thecontrol of a two-DOF stage driven by linear ultrasonic motors.The PI control algorithm is used to increase the stability and accuracy of position control.Experimental results denote that the control strategy proposed in this paper appears to have high efficiency

Keywords： settling position accuracy PI control control algorithm orthogonal

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Control measures of installation precision of Three Gorges Project ship lift rack and nut column

Wei Yan,Peng Hanlin,Lin Fan

Strategic Study of CAE 2013, Volume 15, Issue 9, Pages 91-96

Abstract:

According to technology requirements of installation precision and characteristicslift, and combined with the integrated environment the installation method and installation accuracy controldetailed analysis, put forward the suitable rack, nut column installation construction process and controlIn engineering practice, use the test of datum point to control installation precision of the rack andThus various high precision standard technical difficulties of installation of the rack, nut column,

Keywords： Three Gorges Project ship lift rack nut column installation of control precision control

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Fast forward kinematics algorithm for real-time and high-precision control of the 3-RPS parallel mechanism

Yue WANG, Jingjun YU, Xu PEI

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 3, Pages 368-375 doi: 10.1007/s11465-018-0519-5

Abstract: This novel forward kinematics algorithm is well suited for real-time and high-precision control of the

Keywords： 3-RPS parallel mechanism forward kinematics numerical algorithm parasitic motion

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The processing and precision control of large thinwall steel caisson

Peng Wu,Lin Fan,Zhao Qiang,Ma Jianle

Strategic Study of CAE 2010, Volume 12, Issue 4, Pages 21-24

Abstract: characteristics of large size and thin wall, reasonable welding and assembly methods were adopted to effectively controlprecision in the processes of fabricating and assembling pieces of each unit and the whole caisson,and the welding and anti-deformation precision of thin-wall steel sheet can be controlled too.

Keywords： large thin-walled steel caisson processing precision control

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Precision forging technology for aluminum alloy

Lei DENG, Xinyun WANG, Junsong JIN, Juchen XIA

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1, Pages 25-36 doi: 10.1007/s11465-018-0477-y

Abstract: Thus, it is seriously restricted for the forged part to obtain precision shape and enhanced property.In this paper, progresses in precision forging technologies of aluminum alloy parts were reviewed.Several advanced precision forging technologies have been developed, including closed die forging, isothermalHigh-precision aluminum alloy parts can be realized by controlling the forging processes and parametersor combining precision forging technologies with other forming technologies.

Keywords： precision forging aluminum alloy closed die forging flow control forging hybrid-forming technology

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Full-band error control and crack-free surface fabrication techniques for ultra-precision fly cutting

F. H. ZHANG, S. F. WANG, C. H. AN, J. WANG, Q. XU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 2, Pages 193-202 doi: 10.1007/s11465-017-0448-8

Abstract: The most common method of manufacturing half-meter KDP crystals is ultra-precision fly cutting.When processing KDP crystals by ultra-precision fly cutting, the dynamic characteristics of the fly cuttingstudy, the anisotropic machinability of KDP crystals and the causes of typical surface errors in ultra-precision

Keywords： ultra-precision fly cutting large-aperture KDP crystals spatial frequency processing error

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Do not let precision medicine be kidnapped

Zhiping Yang

Frontiers of Medicine 2015, Volume 9, Issue 4, Pages 512-513 doi: 10.1007/s11684-015-0425-8

Abstract:

Obama’s precision medicine initiative made the medical community boil over after the initiativePrecision medicine has been advocated by the majority of scientists and doctors.This article does not oppose precision medicine.However, the incentive of vigorously promoting precision medicine at present is a concern.

Keywords： precision medicine personalized medicine genomics

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High Precision Adaptive Predictive Control for Cruise Missile

Sun Mingwei,Chen Zengqiang,Yuan Zhuzhi,Ren Qiang,Yang Ming

Strategic Study of CAE 2005, Volume 7, Issue 10, Pages 23-27

Abstract: for recursive least square (RLS) based adaptive predictive control, thus the mass center control withslow response transforms into trajectory angle control with fast response and high precision.Effective transformation from mass center command to trajectory reference has achieved to realize high precisionwith mass center control.It can reduce precision requirements on aerodynamic data and the control parameters can be easily selected

Keywords： cruise missile adaptive control model based predictive control robustness

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Review on the progress of ultra-precision machining technologies

Julong YUAN, Binghai LYU, Wei HANG, Qianfa DENG

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 2, Pages 158-180 doi: 10.1007/s11465-017-0455-9

Abstract:

Ultra-precision machining technologies are the essential methods, to obtain the highest form accuracyThe conception, applications and history of ultra-precision machining are introduced in this article,and the developments of ultra-precision machining technologies, especially ultra-precision grinding,ultra-precision cutting and polishing are also reviewed.

Keywords： ultra-precision grinding ultra-precision cutting ultra-precision polishing research status in China development

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Self-generation of machining precision and its realization in lapping of super precision solid balls

ZHANG Bopeng

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 3, Pages 348-353 doi: 10.1007/s11465-008-0065-7

Abstract: The self-generation of machining precision for solid balls with super precision is emphatically explainedAlthough they are all closed loop control systems, they have different constructions and functions.Necessary conditions for achieving self-generation of machining precision are given.Establishment of the system for machining solid balls with super precision is discussed.Self-generation of machining precision for solid balls with super precision on the basis of the capability

Keywords： self-generation necessary self-regulation capability viewpoint Necessary