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Valve Cam Exercise

Valve Cam Exercise. Problem Statement Open Valve_Cam.sldasm The valve cam model pictured above includes a spring that will be added between the valve guide and the valve. The camshaft will be rotated at an angular velocity of 36,000 deg/s. Define Moving and Ground parts.

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Valve Cam Exercise

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  1. Valve Cam Exercise • Problem Statement • Open Valve_Cam.sldasm • The valve cam model pictured above includes a spring that will be added between the valve guide and the valve. The camshaft will be rotated at an angular velocity of 36,000 deg/s. • Define Moving and Ground parts. • Using curve/curve contact, create a spring with the correct stiffness and free length so that the camshaft and rocker are always in contact. • We are going to plot the: • Cam and Rocker contact force • Valve and Rocker contact force • Valve and cam contact force

  2. Valve Cam Exercise • Define Moving and Ground Parts rocker rocker_shaft valve_guide shaft_mount camshaft valve Valve_Cam.sldasm

  3. Valve Cam Exercise • Add Revolute Motion Angular Velocity = 36,000 deg/s

  4. Valve Cam Exercise • Add Curve/Curve Intermittent Contact Select face • Points Per Curve = 20 • Check Intermittent Contact box ARROWS MUST POINT INSIDE SOLID

  5. Valve Cam Exercise • Add Curve/Curve Intermittent Contact Add contact between valve and rocker • Points Per Curve = 20 • Check Intermittent Contact box

  6. Valve Cam Exercise Ensure damping value and friction values are set according to dialog display • Modify Contact Properties for both Contacts

  7. Valve Cam Exercise Pick origin for valve Pick origin for valve_guide • Add a Linear Spring

  8. Valve Cam Exercise • Set Simulation Parameters Run Simulation

  9. Valve Cam Exercise • Plot Results Cam and Rocker Contact Force Valve and Rocker Contact Force

  10. Valve Cam Exercise • Modify Spring • Stiffness = 150 N/mm • Free Length = 45 mm • Re-run Simulation Contact Between Valve and Cam

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