Simulation of linear position hydraulic drive for machine power drill feed

Design and Simulation of Double Loop Control for Power Converter Fed Variable Speed DC Drive

Dual-Stage Feed Drive for Precision Positioning on Milling Machine

A positioning system with long stroke and high precision by dualstage control was designed. The focus was on combining the long-stroke travel range of linear stage with high-precision characteristics of piezoelectric actuators. The control method used in the system was dynamic compensation type, where the error from linear stage becomes the input to the piezoelectric actuators. Positioning erro...

Complex Model of Machine Structure with Feed Drive

Intelligence of machine tools is not conditioned only by application of modern control systems, sensors and other active components. The application of new methods of modelling, that is intelligent design of machine tools and to purposefully predict its properties, is also very effective. Machine tool development for high speed and highly precise cutting demands employment of advanced simulatio...

application of upfc based on svpwm for power quality improvement

در سالهای اخیر،اختلالات کیفیت توان مهمترین موضوع می باشد که محققان زیادی را برای پیدا کردن راه حلی برای حل آن علاقه مند ساخته است.امروزه کیفیت توان در سیستم قدرت برای مراکز صنعتی،تجاری وکاربردهای بیمارستانی مسئله مهمی می باشد.مشکل ولتاژمثل شرایط افت ولتاژواضافه جریان ناشی از اتصال کوتاه مدار یا وقوع خطا در سیستم بیشتر مورد توجه می باشد. برای مطالعه افت ولتاژ واضافه جریان،محققان زیادی کار کرده ...

On Simplifying the Machine Tool Feed Drive Fem Models

ABSTRACT The paper presents research on modelling of HSM machine tool feed drive with use of Finite Element Method. The problems affecting generally considered machining accuracy were analysed, i.e. the problem of thermal displacements and the problem of displacements related to the feed drive stiffness. The research focused on possibility of simplifying (decreasing complexity) of the FEM model...