Wednesday, January 17, 2018

Vibration Association News

Photo: Torsional Vibration Symposium

Torsional Vibration Symposium Slated for May 21-23, 2014

The 2014 Torsional Vibration Symposium, organized by the Vibration Association, is scheduled for May 21-23 in Salzburg Congress, Austria. The event aims to gather industry experts from around the world to discuss current torsional vibration developments, issues and technologies. The event will feature five informational sessions, an exhibition, gala dinner and many discussion/networking opportunities. Preliminary topics include torsional vibration aspects of combustion engines…

Torsional Vibration Symposium: May 21-23, 2014

The 2014 Torsional Vibration Symposium, organized by the Vibration Association, is scheduled for May 21-23 in Salzburg Congress, Austria. The event aims to gather industry experts from around the world to discuss current torsional vibration developments, issues and technologies. The event will feature five informational sessions, an exhibition, gala dinner and many discussion/networking opportunities. Preliminary topics include torsional vibration aspects of combustion engines…

New Ship Noise, Vibration Guidelines from ClassNK

ClassNK released its new Noise and Vibration Guideline for measuring and evaluating the noise and vibration on ships. The new Guideline address the growing demand for new standards for noise and vibration on commercial vessels and provides detailed requirements for measuring and evaluating noise and vibrations in crew accommodations and machinery rooms, as well as establishes new notations for ships that comply with the new requirements. The new guideline is divided into two parts: Part A…

Image credit MARIN

Dutch Joint Initiative: Onboard Vibration Training Course

The well-known Dutch research institutes MARIN and TNO offer a 2-day course – 'Onboard Noise & Vibration'. The organisers believe that the entire maritime industry can benefit from this training course, and claim it is the only training course in the world specialised in the details of noise and vibrations at an advanced level. The program has been developed and adjusted to the needs expressed by the industry and deals with the origin and prevention of noise and vibrations on board. The two-day training course takes place in Delft, the Netherlands, on 28 and 29 May.

Photo: Mercury Marine

Mercury Marine Brings Nauticus Machinery to New Market

Marking the first time the DNV GL's Nauticus Machinery software designed for the shipping industry is being used for recreational size marine engines, Mercury Marine has chosen the software for analysis and validation of inboard and sterndrive engines, including transmission and driveline configurations. Nauticus Machinery’s Torsional Vibration tool is an application for the analysis of torsional vibration. Torsional vibration can cause fatigue in engine components, leading eventually to possible breakage of shafts or other machinery parts.

Volvo Penta IPS leads the way forward Photo Volvo Penta

Volvo Penta for Virginia Pilots Boats

The new boat being built for the Virginia Pilots Association joins the increasing number of pilot boats powered by Volvo Penta IPS. The 55-ft. vessel, designed by C. Raymond Hunt Associates and built by Gladding-Hearn Shipbuilding, will run on twin D13 900 hp U.S. EPA Tier 3 engines with IPS3 drives. “Stability, reliability, support, speed and efficiency – these are the five criteria that we used to select the engine for the new pilot boat,” said Frank Rabena, a 17-year pilot and chairman of the Association’s pilot boat committee.

Cooperation Yields 'Quiet Drive' Solutions

The management teams of CENTA Antriebe Kirschey GmbH and Christie & Grey Limited have announced a strategic global sales cooperation. The agreement allows the two companies to join forces to engineer and strategically supply “quiet drive” solutions - combining soft mounting systems, flexible couplings, and intermediate drive shaft systems. Christie & Grey Limited manufactures engineered and customized vibration, noise and shock control solutions for worldwide marine, industrial…

Couplings For Maximum Comfort

Leisure boats are generally characterised by drive systems that are specially optimized with respect to comfort and noise. The drive engines used for such applications are those that typically have a high level of power density and low weight. In conjunction with this lightweight construction design, there are stringent requirements specified for optimal response to torsional vibrations and the misalignment capacity of flexible couplings. Vulkan Couplings offers the leading product portfolio for these applications that consists of elastic engine mounts…

Image: Renold Hi-Tec

Couplings Cure Gensets’ Destructive Vibration

Rubber-in-compression couplings help protect gas- and diesel-driven generator sets from torsional vibration and the possible catastrophic effects of resonance occurring if this were to coincide with the natural frequency of the system, says couplings manufacturer Renold Hi-Tec. The company explains torsional vibration is an inherent feature of any internal combustion engine as pulses, or peaks in torque, occur as the pistons are driven on their power strokes when the fuel and air mixture ignites.

Calnetix Drive System Passes Navy Tests

Calnetix Technologies, a manufacturer of high-speed permanent magnet motor generators, power electronics and magnetic bearings for a variety of applications and industries, passed the first shock and vibration test requirements for its motor and magnetic bearing technology, which are an integral part of a new generation of shipboard chillers for the U.S. Navy. Shock and vibration testing of the variable speed, two-stage, direct drive compressor was completed as part of the chiller prototype development program led by YORK Navy Systems, a Johnson Controls Company.

Photo courtesy of DBR

DBR Enters Turkish Market with Genset Delivery

DBR has successfully delivered four identical generator sets to Istanbul Shipyard. The generator sets will be installed on four vessels that the yard is constructing with an eye to delivery in 2015. “This is a groundbreaking contract for us as this is our first time we have worked with a Turkish yard,” says DBR Sales Manager Henri Hafkamp. Istanbul Shipyard will install the four 450kWe units, DBR type DML563RS, as emergency harbour generators sets. Meeting Turkish Lloyd’s classification requirements…

Photo credit FN Diving

Container Ship Propellor Damage Fixed by FN Diving

Heavy shaft vibrations led  a container shlp owner to call in FN Diving in Rotterdam for underwater repair of the propellor. The inspection of the propeller revealed a deformation on one of the blade tips due to impact damage, the blade was found bent up to a 70 degree angle towards pressure side, while the tip of the next blade was broken off. In cooperation with the Propeller manufacturer, FN Diving determined an in situ repair plan. In order to assure a minimum delay for the vessel…

Germanischer Lloyd Certifies SimulationX

ITI GmbH today announced that for the first time a marine application of the interdisciplinary simulation software SimulationX has passed Germanischer Lloyd’s (GL) type approval certification. The SimulationX software module marine propeller for the calculation of ice impact induced loads on the powertrain was designed and developed by ITI in collaboration with GL in accordance with the specifications laid down by GL, the Finnish-Swedish Maritime Administration and the IACS. The…

Image: MAN Diesel & Turbo

MAN EcoCam Further Optimizes Slow Steaming

MAN Diesel & Turbo is introducing the MAN EcoCam as a retrofit solution for the low-load optimization of its low-speed, mechanical engines with single turbochargers. According to the manufacturer, the EcoCam offers significant fuel savings of 2 - 5 g/kW – with short payback times – and delivers an increased Pmax cylinder pressure through the adjustable exhaust-valve timing. Christian Ludwig – Head of Retrofit & Upgrade – MAN Diesel & Turbo, said, “Slow-steaming is now an established industry standard across all segments…

Self-locking Threads for Stainless Steel Nuts

For ship repair, maintenance and conversion STANLEY Engineered Fastening now offers its self-locking Spiralock thread form – which the manufacturer said is highly resistant to shock, vibration and temperature induced loosening – in a full range of corrosion-resistant, stainless steel, fractional and metric hex flange nuts. Spiralock threaded nuts accept standard male fasteners, eliminate the need for other locking devices, minimize galling since it is free spinning until clamp load is applied, and reduce the potential for fatigue failure compared to standard threads, the manufacturer added.

T/S State of Michigan engine room (Photo: MARAD)

MARAD Study: Renewable Diesel Reduces Emissions, No Harm to Performance

MARAD study shows renewable diesel fuel reduces emissions without impacting engine performance. The Maritime Administration (MARAD) has recently completed tests of renewable biofuel technology onboard the training ship State of Michigan. The project was part of a MARAD initiative to conduct “at sea” tests of advanced renewable fuels and assess its impact on the ship’s engine. The tests compared operational, vibration and air emission differences between regular ultralow sulfur diesel (ULSD) fuel and a 76/33 blend of ULSD and Amyris Renewable Diesel (ARD) fuel, which is derived from sugar.

VULKAN Drive Tech to Exhibit at Power-Gen Europe

VULKAN Drive Tech, a division of the international VULKAN group, and a specialist in industrial drives, will be an exhibitor at the Power-Gen Europe event, which is being held from 12th – 14th June in Cologne. such as, for example, wind energy plants, pumped storage and hydro power plants. Pumps and compressors are at the core of many industrial plants in the oil and gas sector. Therefore, their efficient and fault-free operation is of prime significance for the availability and efficiency of the entire plant.

Photo courtesy of SKF

Thruster Mornitoring – New Solution by SKF

SKF list the following benefits: improved thruster and ship availabilty; extended class survey intervals; reduced need for dry=docking, and optimized thruster operation. The monitoring solution is based on enabling the potential monitoring of a wide range of data, including vibration, lubrication, process and electrical functions. This capability, combined with certified data analysis services available from SKF's ISO certified vibration analysis specialists worldwide…