An analytical method is presented for simulating piston secondary dynamics and piston-bore contact for an asymmetric half piston model. The method accounts for bore distortion effects due to mechanical and thermal deformation, inertia loading, piston barrelity and ovality, piston flexibility and skirt-to-bore clearance. A time integration algorithm is used based on a modified Newmark-Beta method for nonlinear systems. A contact algorithm using the complementarity method, determines the contact characteristics between the flexible piston and a rigid liner.
Volume Subject Area:
Engine Tribology
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