Development of Profile Design Method Based on Longitudinal Strain for Flexible Roll Forming Process

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 ...

Cold roll forming process pdf

Stress Analysis and Energy Estimation in Cold-Roll Forming Process

In this article, stress analysis and energy estimation during cold-roll forming of symmetrical channel sections have been discussed. Geometry of sheet strip is pre-estimated by a shape function. Then longitudinal, transversal and shear strains have been calculated. Using both the Levy-Mises and the Prandtl Reuss equations, and also considering the Bauschinger effect, stress distributions have b...

"Ready-to-Roll" Boxcar Development - a Flexible, Quality-Weighted Process

In January of 1996, Intuit’s QuickBooks team was faced with an aging code-base using a custom Mac/Win GUI toolkit, a large and rapidly growing customer base, and a rapidly growing and product-inexperienced engineering team. To increase the product’s quality and feature predictability while retaining its ship date rigidity, we created “Ready-to-Roll” Boxcar Development. The process enabled the d...

Optimization of the strain distribution in the roll forming process using the desirability function and finite element methods

Defects of the roll forming process are affected by amount and situation of the strains distribution. The effect of the process parameters on the strain distribution in the round cross section roll forming process has been studied. Finite element and response surface method have been used for process modelling. Then desirability functions approach and overlaid counter plots have been employed f...