Input: Compressor cylinder geometry (bore, stroke, clearance pockets), gas properties, valve timing, pipe routing, support locations, and material properties.
The standard requires that the natural frequencies of the system must be separated from exciting frequencies (running speed, vane passing, etc.) by a minimum of . If you are within that 10% window, you must perform a forced response analysis. api 688 pdf
API 688 is written for fracturing, but its principles are directly transferable to reciprocating cement pumps. For official cementing standards, see and API RP 10B . Input: Compressor cylinder geometry (bore
API 688 was developed to standardize the methodology for studying, measuring, and mitigating these pulsation-induced vibrations. and mitigating these pulsation-induced vibrations.