A synthetical modelling for machine tool feed drives. (2016)

• Record Type: Journal Article
• Authors: Wang, Shuting; Xiao, Lei; Zhang, Haiying; Gou, Weidong
• Is Part Of: International journal of materials and structural integrity. Volume 10:Number 1/2/3(2016)
• Page Start: 52
• Page End: 62
• Publication Date: 2016
• Subjects: dynamic modelling -- simulation -- machine tool feed drives -- lumped elasticity -- machine tool design -- machine dynamics -- machining centres -- tool path generation -- AC servo control -- multi-body system dynamics -- CAM trajectory curve -- high speed machining; Materials -- Testing -- Periodicals; Strength of materials -- Periodicals; Structural dynamics -- Periodicals; Structural analysis (Engineering) -- Periodicals; 620.112
• Languages: English
• ISSNs: 1745-0055

Abstract

The machine dynamic performance depends on not only the mechanical structure and components but also the control system and electronic drives. This paper proposes a holistic integrated dynamic design and modelling approach, which supports analysis and optimisation of the feed drive system dynamic performance at the early design stage. The modelling and simulation cover the dynamics of the machine structure, moving components, control system and the machining process. Based on the theoretical derivation, a co-simulation platform for machining centre (MC) has been established and it consists of the generation of tool path instructions, AC servo control system, multi-body system dynamics and elasticity. Using the integrated platform, a real-time simulation of a CAM trajectory curve is presented, whose result indicates that the proposed simulation platform can be used to analyse and evaluate overall dynamic characteristics of high-speed MC.