Active component and control design for torsional mode vibration reduction for a parallel kinematic machine tool structure

2008 ◽  
Author(s):  
Reimund Neugebauer ◽  
Volker Wittstock ◽  
André Bucht ◽  
André Illgen
Keyword(s):  
Machine Tool ◽  
Active Component ◽  
Vibration Reduction ◽  
Control Design ◽  
Parallel Kinematic Machine ◽  
Torsional Mode ◽  
Machine Tool Structure ◽  
Mode Vibration ◽  
Parallel Kinematic ◽  
And Control

Modelling and Control Design of Vibration Reduction Systems

2019 ◽  
Author(s):  
Tomasz Krzyzynski ◽  
Igor Maciejewski ◽  
Lutz Meyer ◽  
Henning Meyer
Keyword(s):  
Vibration Reduction ◽  
Control Design ◽  
And Control

Dynamic modeling and control design for a parallel-mechanism-based meso-milling machine tool

Robotica ◽  
2013 ◽  
Vol 32 (4) ◽  
pp. 515-532 ◽  
Author(s):  
Adam Y. Le ◽  
James K. Mills ◽  
Beno Benhabib
Keyword(s):  
Machine Tool ◽  
Dynamic Modeling ◽  
Design Methodology ◽  
Controller Design ◽  
Convex Combination ◽  
Control Design ◽  
Milling Machine ◽  
Modeling And Control ◽  
Kinematic Mechanisms ◽  
And Control

SUMMARYA novel rigid-body control design methodology for 6-degree-of-freedom (dof) parallel kinematic mechanisms (PKMs) is proposed. The synchronous control of PKM joints is addressed through a novel formulation of contour and lag errors. Robust performance as a control specification is addressed. A convex combination controller design approach is applied to address the problem of simultaneously satisfying multiple closed-loop specifications. The applied dynamic modeling approach allows the design methodology to be extended to 6-dof spatial PKMs. The methodology is applied to the design of a 6-dof PKM-based meso-milling machine tool and simulations are conducted.

Efficient Simulation of Parallel Kinematic Machine Tools

2009 ◽  
Author(s):  
Martin Kipfmu¨ller ◽  
Christian Munzinger
Keyword(s):  
Machine Tool ◽  
Machine Tools ◽  
Development Process ◽  
Special Focus ◽  
Full Potential ◽  
Parallel Kinematic Machine ◽  
Machine Tool Industry ◽  
Simulation Tools ◽  
Parallel Kinematic ◽  
Parallel Kinematic Machine Tools

Today’s machine tool industry mainly consists of small and medium-sized enterprises. Thus, the simulation of new products often does not seem to be cost effective due to the small number of items produced and the high cost of simulation tools. Nevertheless, the use of simulation tools is essential in order to tap the full potential of new challenging concepts like parallel kinematic machines. This paper presents a simulation method supporting the development process of parallel kinematic machine tools from the first concept to the prototype. In order to render the method applicable for the machine tool industry, a special focus is placed on tool efficiency. A modular modeling concept will ensure that the structure of the first kinematic model of the concept phase can be enhanced during the development process and developed into more detailed models, e.g. for dimensioning calculations or to study the dynamic behavior of machine tools. Thus, the method efficiently supports the whole development process with a simulation model gradually increasing in detail according to the requirements of the machine tool designer.

Influence of Tool Posture and Position on Stability in Milling with Parallel Kinematic Machine Tool

2020 ◽  
Vol 21 (12) ◽  
pp. 2359-2373
Author(s):  
Muizuddin Azka ◽  
Keiji Yamada ◽  
Mahfudz Al Huda ◽  
Ryutaro Tanaka ◽  
Katsuhiko Sekiya
Keyword(s):  
Machine Tool ◽  
Parallel Kinematic Machine ◽  
Tool Posture ◽  
Parallel Kinematic

S1301-2-4 A Study on Process Planning for a Parallel Kinematic Machine Tool

2009 ◽  
Vol 2009.4 (0) ◽  
pp. 239-240
Author(s):  
Akihito YAMAMOTO ◽  
Keiichi NAKAMOTO ◽  
Keiichi SHIRASE
Keyword(s):  
Machine Tool ◽  
Process Planning ◽  
Parallel Kinematic Machine ◽  
Parallel Kinematic

Error modeling and sensitivity analysis of a novel 5-degree-of-freedom parallel kinematic machine tool

2018 ◽  
Vol 233 (6) ◽  
pp. 1637-1652 ◽  
Author(s):  
Xuan Luo ◽  
Fugui Xie ◽  
Xin-Jun Liu ◽  
Jie Li
Keyword(s):  
Sensitivity Analysis ◽  
Machine Tool ◽  
Jacobian Matrix ◽  
Error Modeling ◽  
Degree Of Freedom ◽  
Geometric Errors ◽  
Parallel Kinematic Machine ◽  
Parallel Kinematic ◽  
Position And Orientation ◽  
Five Axis

5-Degree-of-freedom parallel kinematic machine tools are always attractive in manufacturing industry due to the ability of five-axis machining with high stiffness/mass ratio and flexibility. In this article, error modeling and sensitivity analysis of a novel 5-degree-of-freedom parallel kinematic machine tool are discussed for its accuracy issues. An error modeling method based on screw theory is applied to each limb, and then the error model of the parallel kinematic machine tool is established and the error mapping Jacobian matrix of 53 geometric errors is derived. Considering that geometric errors exert both impacts on value and direction of the end-effector’s pose error, a set of sensitivity indices and an easy routine for sensitivity analysis are proposed according to the error mapping Jacobian matrix. On this basis, 10 vital errors and 10 trivial errors are identified over the prescribed workspace. To validate the effects of sensitivity analysis, several numerical simulations of accuracy design are conducted, and three-dimensional model assemblies with relevant geometric errors are established as well. The simulations exhibit maximal −0.10% and 0.34% improvements of the position and orientation errors, respectively, after modifying 10 trivial errors, while minimal 65.56% and 55.17% improvements of the position and orientation errors, respectively, after modifying 10 vital errors. Besides the assembly reveals an output pose error of (0.0134 mm, 0.0020 rad) with only trivial errors, while (2.0338 mm, 0.0048 rad) with only vital errors. In consequence, both results of simulations and assemblies validate the correctness of the sensitivity analysis. Moreover, this procedure can be extended to any other parallel kinematic mechanisms easily.

Theoretical Design and Control Analysis of Reconfigurable Parallel Kinematic Machine Tools

2007 ◽  
Author(s):  
Dan Zhang ◽  
Zhuming Bi ◽  
Yunjian Ge
Keyword(s):  
Machine Tools ◽  
Geometric Modeling ◽  
General Concept ◽  
Control Analysis ◽  
Parallel Kinematic Machine ◽  
Modeling And Control ◽  
Theoretical Design ◽  
Parallel Kinematic ◽  
And Control ◽  
Parallel Kinematic Machine Tools

This paper introduces the theoretical design and control of reconfigurable parallel kinematic machine tools. First, the general concept of reconfigurable parallel kinematic machine (RPKM) and its growing demand are introduced. Second, the design of reconfigurable parallel kinematic machines is discussed and the geometric modeling of such structures is presented and explained. The potential applications of this type of machine are described. Finally, a case study for one of the proposed structures is conducted, including kinematic/dynamic modeling and control, some results and simulation are demonstrated.

Machining with the WalkingHex: A walking parallel kinematic machine tool for in situ operations

CIRP Annals ◽  
2017 ◽  
Vol 66 (1) ◽  
pp. 361-364 ◽  
Author(s):  
A. Olarra ◽  
D. Axinte ◽  
L. Uriarte ◽  
R. Bueno
Keyword(s):  
Machine Tool ◽  
Parallel Kinematic Machine ◽  
Parallel Kinematic
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