Reliability-based design optimization of pump penetration shell accounting for material and geometric non-linearity

Velayudhan, Gautham (avtor), Venugopal, Prabhu Raja (avtor), Gnanasigamony Thankareathenam, Ebron Shaji (avtor), Selvakumar, Mohanraj (avtor), Pudukarai Ramaswamy, Thyla (avtor)

The roof slab of a nuclear reactor supports all the components and sub-systems. It needs to resist the seismic loads in accordance with load-carrying criteria. The static stress analysis of the reactor roof slab reveals that high-stress concentration was present in the pump penetration shell (PPS) that supports the primary sodium pump. This paper presents an assessment of collapse load and the optimization of the pump penetration shell through the reliability approach, accounting for material non-linearity, geometrical non-linearity and randomness in loading. In addition, the load-carrying capacity of PPS was determined considering two different materials: IS2062 and A48P2. The design of experiments (DoE) was formulated considering the flange angle and flange thickness as parameters. An empirical model for load function was formulated from the results of the collapse load obtained for various combinations of design parameters. The above function was used to perform the reliability-based geometry optimization of the PPS of the roof slab.

• Jezik: Angleški jezik
• Ključne besede: nuclear reactors, buckling, optimization, reliability, limit load, genetic algorithm
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2021
• Št. strani: Str. 331-340
• Številčenje: Vol. 67, no. 6
• PID: 20.500.12556/RUL-128366
• UDK: 621.039.5
• ISSN pri članku: 0039-2480
• DOI: 10.5545/sv-jme.2021.7104A
• COBISS.SI-ID: 69856771
• Datum objave v RUL: 09.07.2021

Gradivo je del revije

• Naslov: Strojniški vestnik
• Skrajšan naslov: Stroj. vestn.
• Založnik: Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.
• ISSN: 0039-2480
• COBISS.SI-ID: 762116

Sekundarni jezik

• Jezik: Slovenski jezik
• Naslov: Optimizacija konstrukcije prebojnega skoznjika črpalke za zanesljivost ob upoštevanju materiala in geometrijskih nelinearnosti
• Ključne besede: jedrski reaktorji, uklon, optimizacija, zanesljivost, mejna obremenitev, genetski algoritem