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Design a cam to drive an automotive valve train whose effective mass is 0.2 kg. ζ = 0.3. Valve stroke is 12 mm. Roller follower is 10 mm diameter. The open-close event occupies 160° of camshaft revolution; dwell for remainder. Use one or two polynomials for the rise-fall event. Select a spring constant and preload to avoid jump to 3500 rpm. Fast opening and closing and maximum open time are desired.
Design values based on test experience for this application are pmax = 1000 kPa and f = 0.10. What total number of disks is required?
consider an acrylic sheet of thickness l 5 mm that is used to coat a hot isothermal metal substrate at th 300 c. the
if a kitchen-sink water tap leaks one drop per second how many gallons of water are wasted annually? what is the mass
The maximum torque produced by the engine of the car occurs at 4750 rpm, when the engine is generating 286 HP. The designer followed the following method and chosen steel shaft having yiled stress at 80,000 psi and a factor of safety = 4.
the homogenous composite object shown is 3 inches thick and is hinged at o. l 48 inches w 6 inches and r 12 inches
consider a cylindrical specimen of some hypothetical metal alloy that has a diameter of 8.0 mm 0.31 in.. a tensile
consider a refrigerator that accepts 15 kw of heat in the evaporator and rejects 19.76 kw of heat from the condenser.
Determine the acceleration vector throughout the flight and the velocity vector at O;
a vertical piston-cylinder assembly contains 0.3 kg of air k1.4 r287 jkgk initially at 155 kpa and 27 degree c. the is
What are the root SSL keys hard-coded within your Web browser of choice? When were these keys created? When do they expire?
For a steel alloy it has been determined that a carburizing heat treatment of 9-h duration will raise the carbon concentration to 0.38 wt% at a point 1.4 mm from the surface. Estimate the time (in h) necessary to achieve the same concentration at a 6..
You are boiling a kettle of water over a propane stove that is supplying a uniforma amount of heat. You note that it takes 3 minutes to heat water which is initially at 20C to its boiling point. Just as the water begins to boil, you receive a phone c..
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