5 applications for TENSA DMS motion monitoring system

TENSA motion monitoring system

In offshore operations, moving heavy equipment from and to vessels in a seastate can be a tricky business. The movement of the vessels can cause large dynamic loads to be applied to a crane when the load is lifted from the deck.

These loads, however, are not easily predicted with the current technology of ‘guesstimating’ the dynamic load by using the significant wave height (Hsig). Instead, TENSA’s off the shelf vessels motion monitoring system, the Dynamic Motion System (DMS), measures the load velocity directly which then allows the dynamics to be accurately calculated.

Here we list 5 potential applications for TENSA DMS motion monitoring system in the offshore operations to improve safety and efficiency:

Crane operations

TENSA DMS measures the vertical velocity of the load so that the appropriate crane chart for the lift can be selected directly.  There is a direct correlation between the measured velocity and the correct crane chart (charts are typically defined by seastate) that should be used. The DMS also offers crane operators powerful visualisation by displaying real time vessels motion, which allows the operators to time the lift on a rising wave and reduce the difficulties of estimating vertical motion of vessels at night or when looking down.

Helicopter operations

TENSA DMS motion monitoring information can also help measure safe operating conditions for offshore helicopter operations. While DMS doesn’t comply with the current onerous CAP437 requirements, DMS system can be developed to incorporate the Significant Heave Rates and Motion Severity Index data displays required by CAP437 at a fraction of the cost.

Monitoring of towed barges and cargoes

The TENSA DMS can be utilised as an inexpensive tool for fleet owners to assess and reduce their operational risk during towing operations. In particular cargo on towed barges experiences damage due to excessive motions. The DMS can send the barge motions wirelessly to the tow vessel and can log the data.

Offshore construction

TENSA DMS can be used to monitor vessel motions and locations during offshore construction phases such as floatovers and in FPSO connecting operations, using its wireless linked GPS and motion sensors. The TENSA DMS motion monitoring system delivers real time heave, pitch, roll, heading speed, course, position, accelerations at the sensor as well as at offset positions which could be the bow, stern roller, crane boom tip or an overboarding sheave on an A frame. Decisions as to whether conditions are suitable for work or whether weather downtime applies can be quantified and the logged data is available for reference. The DMS buoy can additionally be used for measuring wave heights and seastate as well as the other DMS functionality.

Personnel transfer

The TENSA DMS can measure vessel motions when personnel transfers are being contemplated. The DMS motion monitoring allows clear definitions of maximum tolerable conditions for safe transfer, hence significantly reducing the risk to personnel.

Visit our booth J1 at AOG 2018 to see a demonstration of the TENSA Dynamic Motion System (DMS). The DMS is available in different versions: DMS Max with wireless connectivity and inbuilt 24 hour  battery, the entry-level DMS Mini and the DMS Buoy, which is a DMS inside a portable buoy for delivering real time wave data.



3 Reasons Why You Should Visit TENSA at AOG 2018

TENSA Equipment will be exhibiting at the Australasian Oil and Gas Exhibition and Conference (AOG) 2018 from Wednesday 14 to Friday 16 March at the Perth Exhibition and Conference Centre (PECC).

Join us at Booth J1. To help you make the most of your visit, we give you 3 reasons why you should join us:

Reason #1: Learn how TENSA products can solve your problems

TENSA products are designed to provide high value efficiency, safety and reliability of our clients’ offshore operations.

If you are curious about what we are doing, visit our booth and we will share with you how our products can:

Reason #2: Meet TENSA engineers and discuss your challenges one-on-one

Do you have specific questions or require customised solutions for your offshore operations? Our motion monitoring and heave compensation experts will discuss with you one-on-one about your options.

This will be the perfect opportunity to learn more about how our products can be tailored to your specific operational challenges and get your burning questions answered by our engineers.

Reason #3: Experience DMS demonstration and watch videos of TENSA innovative products

Get a chance to learn first hand how to use TENSA motion monitoring unit, the Dynamic Motion System (DMS) at our booth.

You will also have the opportunity to watch demonstration videos of TENSA gangways in operations and our upcoming new product, Roborigger.

Get invited to connect with our network!

TENSA is organising a networking drinks function for a gathering of industry specialists and practitioners in the oil and gas industry.

Request your invite and get in the know of our latest innovation projects, meet with the who’s who in our TENSA network and simply get a chance to review the AOG 2018 over light bites and drinks with friends!