Research approaches to improving the technological efficiency of construction of vessels of the floating power unit type

The This study analyzes organizational and technological approaches to improving the manufacturability, or technological efficiency, of constructing floating power units (FPUs), which represent a promising solution for energy supply to Arctic territories and the infrastructure of the Northern Sea Route. The relevance of the work is determined by state plans for Arctic development and the necessity of mastering serial production of FPUs, which requires reducing labor intensity, construction time, and costs while ensuring high quality of hull structures and the safety of nuclear power installations. The purpose of the research is to systematize organizational and technical measures aimed at improving efficiency at all stages of the FPU life cycle. The study examines the experience of constructing the “Akademik Lomonosov” and distributed shipyard projects, identifying ten key technological positions in production, including lofting, hull processing, outfitting, and testing. The authors propose developing general technical requirements (GTR) for the fabrication of hull structures, protective shells, and pipelines, as well as introducing albums of standard hull structures and welded joints to standardize production. Particular attention is given to design and technological solutions, such as optimizing the placement of cutouts in sections, minimizing assembly welded joints, and applying probabilistic methods, including PERT/COST, for estimating durations. The study further considers improvements in non-destructive testing of welded joints, the transition to national standards, the potential use of polymer pipelines for auxiliary systems, and optimization of the testing program for protective shells and reactor compartment barriers. A comprehensive system of organizational and technical measures has been developed, covering technological support for construction, quality management, and documentation unification. The obtained results can serve as a methodological basis for the development of manufacturability management programs in serial production of FPUs and may be adapted for other Arctic vessel projects, providing both practical guidance and a framework for improving construction efficiency while maintaining safety and reliability.