Murdock Engineering Introduces New Tension System Design

"A simple way to solve a complex problem," is how Murdock Engineering Company, Irving, Texas, describes its new tensioning system.

According to the company's engineers, what job tensioners do— maintain constant tension on the riser or guideline as the vessel moves in response to wind and wave action—was an ideal application for their specialty, elastomeric technology.

An elastomeric spring produces the constant force deflection curve needed to maintain uniform tension on the riser or guideline. And a system based on an elastomeric spring would be much simpler to operate than traditional air-hydraulic systems.

According to the company, the tensioner system design selected has a number of inherent advantages including: passive operation (no compressors and/or hydraulic pumps are required); fast response; light weight; minimal maintenance; elastomeric spring operation; interchangeable (the Murdock system can be retrofitted to existing vessels using attachment pads from the present air-hydraulic system); designed for long life; less deck space required; and special safety features— no power is required for operation, thus unit continues to operate in the event of a total power failure, and if a line or riser break is detected by a monitor, caliper-type brakes act to prevent dangerous line whipping.

For a free brochure or literature on Murdock Engineering's new tensioning system, Circle 106 on Reader Service Card

Maritime Reporter Magazine, page 7,  Aug 15, 1985

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Maritime Reporter

First published in 1881 Maritime Reporter is the world's largest audited circulation publication serving the global maritime industry.