What is the impact of high-speed ship propellers
As high-speed ship propellers are gradually becoming larger, the changes in the stern structure have a huge impact on the wake distribution of the disc. If the traditional high-speed propellers with no skew, no longitudinal slope, and radial pitch distribution are still used, One rotation is a process of entering and exiting the high and low wake field. In this process, the non-skewed blade guides enter the wake area almost at the same time, which will increase the induced excitation force of the hull and bring about the safety of the hull. Hidden hazards; due to the uneven distribution of the wake field at the stern, if the pitches of the blades in different radius layers are the same, it cannot adapt to the incoming flow speeds of the different wake fields, so the propulsion efficiency will be reduced; The pressure distribution of the blade back will have an impact. No longitudinal tilt reduces the unloading capacity of the blade and reduces the compressive strength of the propeller blade, thereby affecting the service life of the propeller.
