Analysis of Kinematics and Dynamics for a Novel Hybrid Kinematics Machine

Hu, Ying; Li, Bing; Wang, Zhixing; Yang, Xiaojun; Hu, Hong

doi:10.1299/jamdsm.1.58

Cited by 8 publications

(4 citation statements)

References 8 publications

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“…The workspace can be obtained by the numerical search method under the constraints of ball-joint revolution angle, strokes of slider and passive subchain, etc. [21]. In the optimal design, the above-mentioned constraints can be included in the design model.…”

Section: Kinematic Performance Index (Kpi)mentioning

confidence: 99%

“…Hu et al proposed a novel parallel mechanism with configuration of 4PUS-1RPU for a 5-DOF hybrid kinematics machine. The modelling and analysis of kinematics, dexterity, workspace, and dynamics have been developed [21]. The current paper continues this work with a focus on the robust design with consideration of kinematic and dynamic characteristics.…”

Section: Introductionmentioning

confidence: 96%

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Robust design and analysis of 4PUS–1RPU parallel mechanism for a 5-degree-of-freedom hybrid kinematics machine

2011

Proceedings of the Institution of Mechanical Engineers, Part B:

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Based on a proposed 4 degree-of-freedom (DOF) T2R2 parallel mechanism with the structural configuration of 4PUS–1RPU (4-prismatic–universal–spherical and 1-revolute–prismatic–universal), a 5-axis hybrid kinematics machine (HKM) can be developed with an additional linear motion being combined. The kinematic and dynamic performance indices for the 4-DOF parallel mechanism are developed. A novel improved RSM (response surface methodology)-based LKN (Latin hypercube design, Kriging interpolation, and neural network training) method, which is a generic robust design method for dealing with the computation-intensive engineering optimization problem, is developed in this paper. The robust design for the 4PUS–1RPU parallel mechanism by using both traditional RSM and the presented LKN method is carried out, where the first-order natural frequency is regarded as the single response objective, and the design results show that the LKN method is more effective than the traditional RSM. Based on the proposed LKN method the robust design for the 4PUS–1RPU parallel mechanism with consideration of both kinematic and dynamic performance indices is carried out. The characteristics of the robust optimal scheme are analysed in detail. The prototype of the HKM with the parameters obtained from the robust design scheme is developed, and the machining experiments show that the proposed HKM can implement the 5-axis machining with the structural and cross-sectional parameters that are much more robust and optimal.

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Section: Kinematic Performance Index (Kpi)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

Robust design and analysis of 4PUS–1RPU parallel mechanism for a 5-degree-of-freedom hybrid kinematics machine

2011

Proceedings of the Institution of Mechanical Engineers, Part B:

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“…The research investigates the estimation capability of wavelet neural networks through comparing with estimated road profiles and real road profiles in the form of actual road roughness by Solhmirzaei (2012) and Patricio (2006). The kinematics and dynamics for a novel hybrid kinematics machine were analyzed using the method of lumped parameter model by Hu and Li (2007). The research provides the basis for the further parametric design with consideration of dynamic performances.…”

Section: Introductionmentioning

confidence: 99%

Research on dynamic characteristics and reliability of a new heavy duty tractor

Yuan

2019

JAMDSM

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Heavy duty tractor plays a vital role in traffic transport industry, in roads and building construction. In all of these applications, the structural failure of vehicle is the key issue in the process of safe running. This paper is devoted to the investigation of dynamic characteristics and fatigue reliability for the heavy duty tractor. Appling the non-similar substructure modeling technology, the novel integrated simulation model of heavy duty tractor is established. The total number of elements of the simulation model are reduced obviously from 4,380,449 to 117,065. A complete experimental process, which contains selecting digital acquisition module, the layout of sensors, the data processing, etc., is presented. The validity of the analysis method and the simulation model is verified by comparing with experimental results. The analysis methods of the random frequency domain and the multiaxial fatigue are employed to obtain the fatigue damage samples of heavy duty tractor. Meanwhile, the influences of confidence, pre-stress field and channel correlation on reliability are discussed. Moreover, on the basis of the system reliability distribution, the reliability of determined life and the index of B10 life are assessed. This study gives a reference for avoiding the structural failure and enhancing the system safety.

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“…SPKMs allow a flexible axis arrangement, moderate complexity, and reasonable technological risks. All of these make SPKMs a viable concept for machine tools, and as such have received considerable attention [1, [5][6][7][8][9][10][11]. Five-degreeof-freedom (DOF) SPKMs, incorporating one three-DOF PKM and one two-DOF SKM, are especially popular.…”

Section: Introductionmentioning

confidence: 99%

Design and experimental study of the SPKM165, a five-axis serial-parallel kinematic milling machine

Xie

Liu

Zhang

2011

Sci. China Technol. Sci.

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A five-axis serial-parallel kinematic milling machine, the SPKM 165, is introduced. This machine consists of a three-degreeof-freedom parallel module and a two-degree-of-freedom serial table. The SPKM 165 is capable of five-face machining. A discussion of the inverse kinematics of the five-axis control is provided. A dimensional synthesis procedure is presented in terms of motion/force transmissibility. Finite-element analysis was used to evaluate the stiffness of a CAD model before the machine was manufactured. Kinematic calibration was implemented to improve the accuracy of the end effector. The results of a calibration experiment are presented. The stiffness of the developed machine was then measured. Milling experiments were conducted, and the test piece showed that the developed machine has satisfactory performance. serial-parallel kinematic machine, dimension synthesis, stiffness evaluation, kinematic calibration Citation:Xie F G, Liu X J, Zhang H, et al. Design and experimental study of the SPKM165, a five-axis serial-parallel kinematic milling machine.

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Analysis of Kinematics and Dynamics for a Novel Hybrid Kinematics Machine

Cited by 8 publications

References 8 publications

Robust design and analysis of 4PUS–1RPU parallel mechanism for a 5-degree-of-freedom hybrid kinematics machine

Robust design and analysis of 4PUS–1RPU parallel mechanism for a 5-degree-of-freedom hybrid kinematics machine

Research on dynamic characteristics and reliability of a new heavy duty tractor

Design and experimental study of the SPKM165, a five-axis serial-parallel kinematic milling machine

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