Shanghai Maritime University

Weak fault feature diagnosis method for electric drive systems based on a multisource feature fusion selection mechanism

Electric drive systems (EDS) feature high integration and strong nonlinearity, which renders weak fault identification a challenging task. Acoustic particle velocity signals employed for noncontact fault monitoring are prone to contamination by noise and redundant features. This...

Numerical investigation on impacts of ammonia injection protocols on NO, NO2 and N2O emissions from ammonia/n-heptane dual-fuel marine engines

In recent years, global warming caused by greenhouse gas emissions has attracted widespread attention, and carbon emission reduction has become a key issue for the global shipping industry. As a promising zero-carbon fuel, ammonia is expected to significantly reduce carbon emissi...

Dynamic Total Cost of Ownership Assessment of Methanol Dual-Fuel Container Ships in the Ningbo–Zhoushan–Valencia Green Shipping Corridor

Green methanol is widely regarded as a technically feasible low-carbon marine fuel for sustainable shipping in the medium term, but its economic viability remains constrained by fuel price and supply-scale uncertainty. This study develops a dynamic total cost of ownership (TCO) m...