Topological optimization and manufacturing of vessel propeller via LMD-method

• Published in: Materials today : proceedings Vol. 30; pp. 538 - 544
• Main Authors: Korsmik, R.S., Rodionov, A.A., Korshunov, V.A., Ponomarev, D.A., Prosychev, I.S., Promakhov, V.V.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.01.2020
• Subjects: Hollow structure; Laser metal deposition; Stainless steel; Topological optimization; Vessel propeller; Hollow structure; Laser metal deposition; Vessel propeller; Topological optimization; Stainless steel
• ISSN: 2214-7853; 2214-7853
• DOI: 10.1016/j.matpr.2020.01.044

This article presents results of complex study based on new methods of designing and manufacturing of metal ship propellers. The original model of propeller was redesigned with help of topological optimization method. Using a static distribution of rated pressure, the parameters of the stress-strain state of the optimized version of the propeller were estimated by comparing its stress state with the initial cast version of the solid unit. The propeller with optimized structure has reliability characteristics close to the original solid version. Based on optimized 3-D model the controlling program for robotic LMD-method of manufacturing was created and propeller was built-up. The weight of optimized propeller is 20% less than original solid one. Control samples for destructive testing also were manufactured. The mechanical properties of samples are not lower than for cast and rolled metal. Based on the same conditions of manufacturing it could be supposed that strength properties of built-up propeller are almost the same to control sample.