Modern modelling uses the rack generation method: the rotor profiles are defined by a series of analytic curves (circles, ellipses, cycloids) that satisfy the meshing condition. The centre distance ( C ) and rotor radii ( r_1, r_2 ) must satisfy:
[ \fracd(mu)d\theta = \dotm in \cdot h in - \dotm out \cdot h out + \dotQ \cdot \fracdtd\theta - p \fracdVd\theta ] Modern modelling uses the rack generation method: the
The core of a screw compressor is a pair of helical rotors (male and female) that mesh together with tolerances as tight as 3 micrometers . To design these, engineers use complex Mathematical Modelling Rotor Profiling Modern modelling uses the rack generation method: the
