Microscopic Wave Machine Mimics Ocean Waves
Researchers from Australia’s University of Queensland have made a microscopic “ocean” on a silicon chip to miniaturise the study of wave dynamics.The device, made at UQ’s School of Mathematics and Physics, uses a layer of superfluid helium only a few millionths of a millimetre thick on a chip smaller than a grain of rice.Dr Christopher Baker said it was the world’s smallest wave tank, with the quantum properties of superfluid helium allowing it to flow without resistance, unlike classical fluids such as water…
New Wave Data Underpins Ship Structural Integrity
The loss of the Stellar Daisy in 2017 was a tragic reminder of the importance of wave data to ship design and operation. The vessel sank in the South Atlantic Ocean, with 22 of 24 crewmembers lost. The structural failure of the vessel was attributed to several factors including material fatigue and the forces imposed on the hull as a result of the weather conditions.Survey requirements for some vessel types have since been tightened, but even before this tragedy, work was underway to evaluate the wave data used to determine ship structural integrity requirements.
Elcome, Miros Ink Distribution Deal
Elcome International LLC signed an exclusive sales and service agreement with Miros AS, the Norway-headquartered wave, current and oil spill monitoring specialist.The partnership expands the distribution of Miros’ comprehensive range of sea state sensor and measurement solutions to Gulf Cooperation Council (GCC) countries, namely UAE, Saudi Arabia, Oman, Kuwait, Bahrain, and Qatar.Miros’ portfolio of sea state measurement solutions provides accurate, real-time data for weather-sensitive operations at sea, as well as offering input to asset integrity systems and coastal monitoring.
ClassNK Releases Strength Guidelines Based on Latest Wave Data
ClassNK has released "Guidelines for Direct Load Analysis and Strength Assessment (Edition 3.0)" following the revision of IACS Recommendation No. 34 earlier this year.The guidelines specify the requirements for conducting hull strength assessments based on the latest wave data.IACS Recommendation No. 34 provides advice on sea states as well as wave spectrum, spreading, heading distribution and vessel speed. Its wave statistics are intended for use in the design of sea-going ships above 90 meters (295 feet), including the effect of bad weather avoidance.
