MUMBAI, India, April 17 -- Intellectual Property India has published a patent application (202641042166 A) filed by Bapatla Surendra Babu; and Irukumalli Priyanka, Tenali, Andhra Pradesh, on April 2, for 'heave-induced parametric fm riser tension self-spectroscopy stabilizer apparatus exploiting wave-modulated diagnostic detuning.'
Inventor(s) include Bapatla Surendra Babu; and Irukumalli Priyanka.
The application for the patent was published on April 17, under issue no. 16/2026.
According to the abstract released by the Intellectual Property India: "An apparatus that monitors and stabilizes offshore marine risers. A marine riser (110) supported by a hydraulic tensioning system (120) experiences tension variations from wave heave. A tensioner load cell (130) outputs this signal. A spectral analysis processor (210) performs frequency-domain decomposition to resolve discrete spectral peaks at a carrier frequency (220) representing the riser's natural frequency, extracting sideband frequencies (230) modulated by the wave heave. A diagnostic module evaluates these sidebands to measure heave severity (310) and detects subsea kicks via instantaneous frequency shifts (320). A parametric proximity monitor (410) tracks the mathematical distance to a catastrophic parametric instability tongue (420). If danger is imminent, a tension detuning controller (430) commands the hydraulic tensioning system to physically adjust the mean tension, shifting the riser's resonant frequencies into a safe operational zone (440), preventing catastrophic parametric resonance."
Disclaimer: Curated by HT Syndication.
