Bristol Harbor Group is a full service design firm located on the harbor in Bristol, Rhode Island. The firm, founded in 1993 and incorporated in Rhode Island in 1995, stands ready to continue in the rich nautical tradition of its namesake. Bristol Harbor Group is a naval architecture and marine engineering firm offering a wide range of design, engineering and analysis services. Bristol Harbor Group utilizes state of the art computer modeling and design tools in concert with time honored design practices to develop innovative and functional designs that meet our customers' diverse requirements. The combination of a strong technical foundation and practical experience allows for Bristol Harbor Group's involvement in a wide range of projects. Please drop us a line to discuss how BHGI can help make your next project a reality.
Owner's Representative: As an Owner's Representative, Bristol Harbor Group offers but is not limited to: progress reports, vessel inspections, schedule review, regulatory review management, change order management, dock and sea trials oversight, record keeping, digital photo documentation as well as many other services.
Bristol Harbor Group, Inc. (BHGI) offers design services from the conceptual design through the detail design and shipyard support. Some of BHGI’s design services include but are not limited to hull design, structural design and analysis, stability analysis, and weight estimating. BHGI’s marine engineering practice focuses on the design of new vessels, repowering’s, and mechanical and electrical upgrades. BHGI’s marine engineers have many years of hands on experience, both aboard vessels and in shipyards. This practical experience allows our marine engineers to better understand both operational and technical issues.
BHGI’s mechanical engineers are well versed in finite element analysis (FEA). We utilize NEi and Autodesk NASTRAN, and FEMAP to determine stress and deflection. Our engineers conduct analyses on a variety of projects including but not limited to: simple and complex beam element models, local and global shell models for vessels and foundations, coupled Computational Fluid Dynamics (CFD) and FEA in a variety of sea states to determine vessel hog and sag along a wave train, thermal analysis for cryogenically controlled cargo, and much more.
BHGI performs CFD analyses using CD-adapco’s STARCCM+ program. Hull models are generated by BHGI’s engineers and are run at various conditions to predict the performance of the vessel. CFD results include final waterline, resistance, wave train, pressure plots, and a variety of other analyses. BHGI uses these results to determine the best hull for the client’s needs.
BHGI provides technical support and consulting services to vessel owners, charterers, and operators. These services can be in support of new construction projects, modifications, regularly scheduled dry docks or more comprehensive maintenance periods. This can include anything from shipyard selection to construction oversight. BHGI also provides life-cycle management and fleet reviews, among many other consulting services.
BHGI completed the design and engineering of an Articulated Barge Unit (ATB), the Gulf Venture, a 120’ x 40’ x 18’-6” twin screw ocean tug, and the Gulf Carrier, a 399’ x 74’ x 30’ 80,000 BBL double hull oil tank barge that was delivered earlier this year. Both vessels were built at Conrad Shipyard in Amelia, LA for John W. Stone Oil Distributor. CFD and FEA were used extensively in the design effort.
In our first five-year contract with the USACE, we were tasked with designing and engineering the modifications to lengthen the NASA Barge PEGASUS from 260’ to 310’ in order to carry new larger rocket boosters on ocean transport from Louisiana to Cape Kennedy, FL. Detail design work included both local and global FEA analysis.
BHGI has extensive knowledge of LNG and has been involved in LNG projects since 2009. BHGI was contracted by Conrad Orange to design a 232’, 2,000m³ LNG Bunker Barge. It is the first LNG bunker barge in North America. It features one tank equipped with MARK III Flex cargo containment technology from GTT (Gaztransport & Technigaz). The barge is expected to be delivered in late 2017. This barge will be a critical supply chain component in the ongoing efforts around the world to reduce the environmental impact of maritime activity through the conversion of ships to LNG.
BHGI has been tasked with a number of projects through our second five-year IDIQ contract with the U.S.Army Corps of Engineers (USACE), Philadelphia District. Some of the projects BHGI is currently working on include: Designing, sizing, and specifying details for the new Mat Assembly Process and Mat Placement Process on the Mat Sinking Unit on the Mississippi River. Designing, sizing, and specifying details for a wicket lifting system, and maintenance crane for the Olmsted Locks and Dams Wicket Lifter. Designing a 300' x 68' x 12' ABS-classed floating crane barge that will be delivered to the Army Corps Rock Island District in the Quad Cities region of Iowa.
Naval Architects / Marine Engineers