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Research.

Insights and findings derived from research into vessel motions conducted in relation to the development of Hefring Marine

Insights into wave impacts, g-forces and captain behaviour in
high-speed vessel operations.

The Hefring Marine team has completed a number of research projects focusing on the frequency and magnitude of wave impacts and resulting g-forces in high-speed vessels. The research performed analyzed among other the effect that an onboard monitoring system could have on the behavior of a captain when operating a vessel.  The research also included measuring the difference in wave impacts depending on the positioning onboard and the difference in the wave impacts on different hull and vessel designs. These and other research projects produced some very important insights.

Aware vs. Unaware

A captain’s awareness of an onboard monitoring device dramatically changes the profile of a boat trip. Comparing results from trips where a captain was aware of a sensor being on board versus one where he was unaware, with other variables such as weather and sea state being roughly equal, we found that average g-force impacts were 60% to 70% lower when the captain was aware of the sensor. The result indicated that the awareness of a sensor resulted in behavioural change leading to lower speeds and a smoother trip. The trip profile where the captain was aware of a sensor therefore resulted in a safer and more comfortable ride, improved efficiency and lower risk of damage to the craft and equipment.

Hefring Marine Research Unaware Case
Hefring Marine Research Aware Case
Hefring Marine Research Analysis

Study finds that experienced impacts differ by 6-9x depending on sensor position, calling for improved forward-looking guidance
to help mitigate danger.

Hefring ehf. conducted research to study the differences in impacts monitored depending on sensor placement on board high-speed RIB boats. The boats were each 11 meters in length, and each had their operating consoles positioned in the aft of the boat, with two rows of seats lining up the deck toward the bow. Three accelerometers were used for each trip, with one being placed in the bow, one on deck by the operator’s console and another on the operator’s shock absorbing seat.


The study found that impacts experienced in the bow could be anywhere between 6 and 9 times greater than those experienced in the aft. The conclusion was therefore that there is a great difference in experienced impacts between positions in a vessel. The implication is that an operator may in many cases not be aware of the severity of impacts experienced in other areas of the vessel, such as by the front-most passengers in boats with configurations of this type.


It is therefore important to provide operators with the right information about motions experienced onboard. For such information to be immediately actionable, it should be in the form of forward-looking guidance based on analyzed real-time data that can help to mitigate potential danger. This can help to better ensure the safety and wellbeing of all crew and passengers on board.

Hefring Marine Waves Impact Analysis

Impacts on different type of boats and hull design

The difference in the type, make and hull design have considerable impact on the movements of the vessels and the wave impacts experienced onboard.  Our research and data collection with our system in a number of high speed vessels have resulted in some important insights, such as that there can be up to 95% less wave impacts experienced in different vessel and hull designs.  

Hefring Marine Wave Impact Hull

Industry sectors

Hefring Marine can be implemented and used on any small to medium sized vessel. Contact us to learn more.

Research.

Insights and findings derived from research into vessel motions conducted in relation to the development of Hefring Marine

Insights into wave impacts, g-forces and captain behaviour in
high-speed vessel operations.

The Hefring Marine team has completed a number of research projects focusing on the frequency and magnitude of wave impacts and resulting g-forces in high-speed vessels. The research performed analyzed among other the effect that an onboard monitoring system could have on the behavior of a captain when operating a vessel.  The research also included measuring the difference in wave impacts depending on the positioning onboard and the difference in the wave impacts on different hull and vessel designs. These and other research projects produced some very important insights.

Aware vs. Unaware

A captain’s awareness of an onboard monitoring device dramatically changes the profile of a boat trip. Comparing results from trips where a captain was aware of a sensor being on board versus one where he was unaware, with other variables such as weather and sea state being roughly equal, we found that average g-force impacts were 60% to 70% lower when the captain was aware of the sensor. The result indicated that the awareness of a sensor resulted in behavioural change leading to lower speeds and a smoother trip. The trip profile where the captain was aware of a sensor therefore resulted in a safer and more comfortable ride, improved efficiency and lower risk of damage to the craft and equipment.

Hefring Marine Research Unaware Case
Hefring Marine Research Aware Case
Hefring Marine Research Analysis

Study finds that experienced impacts differ by 6-9x depending on sensor position, calling for improved forward-looking guidance to help mitigate danger.


Hefring ehf. conducted research to study the differences in impacts monitored depending on sensor placement on board high-speed RIB boats. The boats were each 11 meters in length, and each had their operating consoles positioned in the aft of the boat, with two rows of seats lining up the deck toward the bow. Three accelerometers were used for each trip, with one being placed in the bow, one on deck by the operator’s console and another on the operator’s shock absorbing seat.


The study found that impacts experienced in the bow could be anywhere between 6 and 9 times greater than those experienced in the aft. The conclusion was therefore that there is a great difference in experienced impacts between positions in a vessel. The implication is that an operator may in many cases not be aware of the severity of impacts experienced in other areas of the vessel, such as by the front-most passengers in boats with configurations of this type.


It is therefore important to provide operators with the right information about motions experienced onboard. For such information to be immediately actionable, it should be in the form of forward-looking guidance based on analyzed real-time data that can help to mitigate potential danger. This can help to better ensure the safety and wellbeing of all crew and passengers on board.

Hefring Marine Waves Impact Analysis

Impacts on different type of boats and hull design

The difference in the type, make and hull design have considerable impact on the movements of the vessels and the wave impacts experienced onboard.  Our research and data collection with our system in a number of high speed vessels have resulted in some important insights, such as that there can be up to 95% less wave impacts experienced in different vessel and hull designs.

Hefring Marine Wave Impact Hull

Industry sectors

Hefring Marine can be implemented and used on any small to medium sized vessel.
Contact us to learn more.

Research.

Insights and findings derived from research into vessel motions conducted in relation to the development of Hefring Marine

Insights into wave impacts, g-forces and captain behaviour in
high-speed vessel operations.

The Hefring Marine team has completed a number of research projects focusing on the frequency and magnitude of wave impacts and resulting g-forces in high-speed vessels. The research performed analyzed among other the effect that an onboard monitoring system could have on the behavior of a captain when operating a vessel.  The research also included measuring the difference in wave impacts depending on the positioning onboard and the difference in the wave impacts on different hull and vessel designs. These and other research projects produced some very important insights.

Aware vs. Unaware

A captain’s awareness of an onboard monitoring device dramatically changes the profile of a boat trip. Comparing results from trips where a captain was aware of a sensor being on board versus one where he was unaware, with other variables such as weather and sea state being roughly equal, we found that average g-force impacts were 60% to 70% lower when the captain was aware of the sensor. The result indicated that the awareness of a sensor resulted in behavioural change leading to lower speeds and a smoother trip. The trip profile where the captain was aware of a sensor therefore resulted in a safer and more comfortable ride, improved efficiency and lower risk of damage to the craft and equipment.

Hefring Marine Research Unaware Case
Hefring Marine Research Aware Case
Hefring Marine Research Analysis

Study finds that experienced impacts differ by 6-9x depending on sensor position, calling for improved forward-looking guidance to help mitigate danger.


Hefring ehf. conducted research to study the differences in impacts monitored depending on sensor placement on board high-speed RIB boats. The boats were each 11 meters in length, and each had their operating consoles positioned in the aft of the boat, with two rows of seats lining up the deck toward the bow. Three accelerometers were used for each trip, with one being placed in the bow, one on deck by the operator’s console and another on the operator’s shock absorbing seat.


The study found that impacts experienced in the bow could be anywhere between 6 and 9 times greater than those experienced in the aft. The conclusion was therefore that there is a great difference in experienced impacts between positions in a vessel. The implication is that an operator may in many cases not be aware of the severity of impacts experienced in other areas of the vessel, such as by the front-most passengers in boats with configurations of this type.


It is therefore important to provide operators with the right information about motions experienced onboard. For such information to be immediately actionable, it should be in the form of forward-looking guidance based on analyzed real-time data that can help to mitigate potential danger. This can help to better ensure the safety and wellbeing of all crew and passengers on board.

Hefring Marine Waves Impact Analysis

Impacts on different type of boats and hull design

The difference in the type, make and hull design have considerable impact on the movements of the vessels and the wave impacts experienced onboard.  Our research and data collection with our system in a number of high speed vessels have resulted in some important insights, such as that there can be up to 95% less wave impacts experienced in different vessel and hull designs.

Hefring Marine Wave Impact Hull

Industry sectors

Hefring Marine can be implemented and used on any small to medium sized vessel.
Contact us to learn more.