Beating waveform like pulsating star

Attached are a phase plot and two nights of photometry data on an unreported pulsating star found by my GPX survey that appears to have a beating waveform light curve from two frequencies.  The period of the phase plot is 0.40 days.  Does anyone know a well-known representative variable star that I can read about that looks like this star's lightcurve?

thanks

Paul

BPAD