Mechatronic analysis of a complex transmission chain for performance optimization in a machine tool

Magnani, G.; Rocco, Paolo

doi:10.1016/j.mechatronics.2009.09.007

Cited by 18 publications

(8 citation statements)

References 20 publications

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“…16 Most often resonance is caused by the compliance between the servo motor and the load. 17 Therefore, the bandwidth B w should be much less than the mechanical resonance frequency of the servomechanism, M r . The mechanical resonance and the bandwidth limitation can be described as…”

Section: Design Requirementsmentioning

confidence: 99%

Investigation of the controller parameter optimisation for a servomechanism

Bao

Zhang

Mei

et al. 2015

Proceedings of the Institution of Mechanical Engineers, Part B:

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A novel controller parameter optimisation method to effectively improve the motion accuracy of a servomechanism is proposed in this article. This method overcomes the drawbacks of conventional controller parameter optimisation methods, such as inefficiency and dependence on experience. The servomechanism model was established, and a performance analysis was performed. Moreover, the design requirements were developed. The robust stability was adopted to solve the problem induced by great variations in the modelling elements. Subsequently, a multi-objective nonlinear optimisation problem was developed and solved by an intelligent optimisation algorithm. To achieve the desired performance, the multi-objective optimisation function adopted a comprehensive command response performance function and an external disturbance rejection response function. To validate the effectiveness and feasibility of this method by simulation and experiment, an open servomechanism platform was established. The simulated and experimental results show that the tracking error, protrusion error and performance indicators are all reduced greatly under different working conditions. This method can effectively improve the motion accuracy and has the advantages of high efficiency, high practicality and high flexibility.

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Section: Design Requirementsmentioning

confidence: 99%

Investigation of the controller parameter optimisation for a servomechanism

Bao

Zhang

Mei

et al. 2015

Proceedings of the Institution of Mechanical Engineers, Part B:

View full text Add to dashboard Cite

show abstract

“…In order to optimize the performance of machine tool drives, a huge effort has been made in recent decades to investigate the global mechatronic behaviour through modeling [1]. The more complex or detailed the model is, the more realistic will be the simulation, if the dynamic parameters are well known, and a better design will be done.…”

Section: Introductionmentioning

confidence: 99%

“…In order to get a model that describes accurately the dynamic behavior of the drive test bench and for finding the optimal formulation, several options have been posed in the literature of the Academy. Some works focus on lumped parameters modeling with Newton [1], [7] and Lagrange [8]- [10] form. Other techniques to model dynamical systems are by numerical models of finite elements [8], [11], [12] or multibody models.…”

Section: Introductionmentioning

confidence: 99%

Mechatronics of a ball screw drive using an N degrees of freedom dynamic model

Ansoategui

Campa

2017

Int J Adv Manuf Technol

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High performance position control in machine tools can only be achieved modelling the dynamic behavior of the mechatronic system composed by the motor, transmission and control during the design stage. In this work, a complex analytical model of a ball screw drive is presented and integrated in a mechatronic model of the actuator to predict the dynamic behaviour and analyze the impact of each component of the transmission. First, a simple 2 degrees of freedom model is presented, and is analysis sets the basis for the development of a more complex model of several degrees of freedom, whose resulting fundamental transfer functions are represented using natural and modal coordinates. The modeling in modal coordinates carries a reduction of the transfer function that reduces computational work. The two models are compared and experimentally validated in time and frequency domain by means of experimental tests carried out on a specifically developed ball screw drive test bench. Keywords:Ball screw drive Machine tool dynamics Mechatronics Nomenclature m, J Mass, inertia moment c Viscous damping k Stiffness ωi i-thmodal frequency φij i-thdof component of the j-th eigenvector x,θ Linear, angular position in natural coordinates δ Positionin modal coordinates ξi Damping coefficient of the i-th mode f, τ Force, torque in natural coordinates g Force in modal coordinates Kv Proportional gain of the position loop Kp Proportional gain of the velocity loop Ti Integral time of the velocity loop

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“…Moreover, the common approach is to focus on the manipulator and then include the actuators. However, in several applications, especially when the payload and the manipulator are relatively light, the control cycle time or even the actuators dynamics can be more restrictive due to their finite stiffness, which limits the bandwidth and thus the dynamic performance of the machine in terms of speed, acceleration and trajectory tracking [18,19,20].…”

Section: Introductionmentioning

confidence: 99%

Mechatronic modeling of a parallel kinematics multi-axial simulation table based on decoupling the actuators and manipulator dynamics

2017

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In this work a mechatronic model was developed for a parallel Multi-Axial Simulation Table (MAST) mechanism. The dynamics of the mechanism was obtained using the principle of energy equivalence and Boltzmann-Hamel equations. In this way, the procedure to obtain the explicit dynamic equations is simplified and has the advantage of being systematic. Also, the actuators and the control were modeled and integrated to simulate and study the system's positioning and torque.A remarkable contribution of this work is that the mechatronic model developed considers the mechanism as a disturbance to the actuators in a decoupled manner, allowing to easily evaluate alternative designs of whether the actuators, the mechanism or both. Additionally, the procedure taken has been validated with experimental data from an actual MAST prototype.

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Mechatronic analysis of a complex transmission chain for performance optimization in a machine tool

Cited by 18 publications

References 20 publications

Investigation of the controller parameter optimisation for a servomechanism

Investigation of the controller parameter optimisation for a servomechanism

Mechatronics of a ball screw drive using an N degrees of freedom dynamic model

Mechatronic modeling of a parallel kinematics multi-axial simulation table based on decoupling the actuators and manipulator dynamics

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