Chenbo Yin

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Defects coming from processing and assembly inevitably bring geometric and concentricity error to the fitting gap between valve core and frame. To overcome this problem, grooving was proven to be the most simple and effective method to reduce the hydraulic clamping force, and widely used on cylinder valve cores. Theoretically unbalanced forces kept going(More)
Using Weierstrass-Mandelbrot (W-M) function, characterization is done on the microscopic surface contours, structure function and scale consistent with a power-law relationship. The Weierstrass-Mandelbrot function is introduced to characterize the surface spool's microscopic surface. It can be certificated by the structure function and scale consistent with(More)
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