Postupci uzorkovanja pri pregledima prema varijablama

master's thesis

• Title (english): Sampling procedures for inspection by variables
• Author: Josipa Milić
• Mentor: Gorana Baršić (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2024-05-16, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering

Abstract

Ovaj diplomski rad detaljno opisuje primjenu i značaj postupaka uzorkovanja pri pregledima prema varijablama prema normi HRN ISO 3951-1:2023. U navedenoj normi su definirane statističke metode uzorkovanja koje omogućuju kontrolu prihvaćanja proizvoda koji zadovoljavaju određene uvjete. Također, rad objašnjava nove procedure za prilagođavanje mjerne nesigurnosti, koje se razlikuju ovisno o udjelu rasipanja rezultata mjerenja u ukupnom rasipanju procesa. Nadalje, utvrđene su najistaknutije promjene norme HRN ISO 3951-1:2023 u odnosu na prethodnu verziju norme HRN ISO 3951-1:2016. Napravljena je usporedba s planovima uzorkovanja za atribute čija je primjena i važnost opisana u normi HRN ISO 2859-1:2012. Na kraju, kroz odabrane primjere, provedeni su planovi uzorkovanja prema s-metodi, σ-metodi i p*-metodi kao i novo uvedene procedure vezane za nesigurnost rezultata mjerenja.

Abstract (english)

This master's thesis extensively describes the application and significance of sampling procedures for inspections based on variables according to the standard HRN ISO 3951-1:2023. This standard defines statistical sampling methods that enable the control of product acceptance meeting specific criteria. Additionally, the thesis explains new procedures for adjusting measurement uncertainty, which vary depending on the proportion of measurement result variability in the overall process variability. Furthermore, the most prominent changes in the HRN ISO 3951-1:2023 standard compared to the previous version, HRN ISO 3951-1:2016, are identified. A comparison with sampling plans for attributes, whose application and importance are described in the standard HRN ISO 2859-1:2012, is conducted. Finally, through selected examples, sampling plans are implemented according to the s-method, σ-method, and p*-method, along with newly introduced procedures related to measurement result uncertainty.

• Keywords: uzorkovanje; varijable; HRN ISO 3951-1:2023; mjerna nesigurnost; s-metoda; σ-metoda; p*-metoda
• Keywords (english): sampling; variables; HRN ISO 3951-1:2023; measurement uncertainty; s-method; σ-method; p*-method
• Language: croatian
• URN:NBN: urn:nbn:hr:235:229937
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-05-13 10:55:18