Clasiffication and Analysis of Typical Structures of Dynamic Systems of Machining of Low-Rigidity Shafts

Świć, Antoni; Sobaszek, Łukasz; Gola, Arkadiusz; Orynycz, Olga

doi:10.1016/j.ifacol.2019.10.036

Cited by 1 publication

(1 citation statement)

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“…The analysis and synthesis of the modern automatic control systems is conducted with a significant simplification of the physical and mathematical dependencies describing the processes in the system [2,5,8]. This results, to a great extent, from the imperfection of the applied testing machine as well as the a priori obtained information on the static and dynamic characteristics of the control object as well as external disturbing interactions [3,20]. The available methods of synthesis of the automatic control systems allow for a certain indeterminacy of the character and magnitude of disturbances [14,23].…”

Section: Introductionmentioning

confidence: 99%

A Method of Increasing the Accuracy of Controlling the Parameters of Dynamic Systems and Regulating the Parameters of the Elastic-Deformable State in the Process of Treating Low-Rigidity Shafts

Świć¹,

Sobaszek²,

Gola³

2021

Adv. Sci. Technol. Res. J.

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The article presents the models of technological systems and the parameters of the control object allowing one to seek rational control algorithms, choose the structure of the control system and synthesize the correction devices. The generalized and detailed structural schemes of controlling the elastic-deformable state during working on low-rigidity shafts while applying the tensile force as well as with additional feedback and transfer functions of technological systems, considering the assumptions made and the results of theoretical and experimental testing. The structure of the control object and the dependencies describing the system and considering the specificity of forming the section of the machined surface of the elastic-deformable low-rigidity shafts at longitudinal feeds. As a result of the research a method of increasing the accuracy of controlling the parameters of dynamic systems at the change of the longitudinal feed and regulating the parameters of the elastic-deformable state of low-rigidity elements by introducing correction devices in form of negative feedback in accordance with the cutting force. Moreover, the possibility of creating adaptive units which are not very sensitive to the change of parameters in turning and grinding.

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