– For critical designs, use simulation to confirm proper valve selection and system response – Collect all relevant machine information (Hyvos worksheet or RE 08200)…

– Define Customer and Application goals – Cylinder Parameters – Cylinder Orientation – Moving Mass – Frictions – Piping Parameters – Supply Pressure – Opposing…

Closed loop response fo depends on valve and cylinder Hydraulic Natural Frequency fh (simplified as a mass-spring model) – C: Spring Constant of Fluid under…

Closed loop performance depends on valve and cylinder – Hydraulic Natural Frequency fh (simplified as a mass-spring model) C: Spring Constant of Fluid under Compression…

– Closed Loop Hydraulic Response Could Be Tested – fh = Number of Oscillations per Second – T = Time for one cycle (sec) –…

Valve Matrix & Project Worksheet (suitable for Hyvos simulation)  

Closed Loop means automatic regulation of – Position – Force – Pressure – Velocity – Etc… Constant correction occurs from error generated