Tehnički vjesnik, Vol. 28 No. 3, 2021.
Prethodno priopćenje
https://doi.org/10.17559/TV-20181105130950
Forecasting of Warranty Returns Based on the Reliability of Delivery Assessment
Teresa Gajewska*
; Cracow University of Technology, Faculty of Mechanical Engineering, Al. Jana Pawla II 37, 31-864 Krakow, Poland
Grzegorz Kaczor
; Cracow University of Technology, Faculty of Mechanical Engineering, Al. Jana Pawla II 37, 31-864 Krakow, Poland
Maciej Szkoda
; Cracow University of Technology, Faculty of Mechanical Engineering, Al. Jana Pawla II 37, 31-864 Krakow, Poland
Sažetak
The paper presents a method to evaluate the reliability of deliveries with the application of Reliasoft Weibull++ software. The first stage in the proposed method was to collect data on outbound deliveries on a monthly basis and convert them into reliability data (life data). Next, by combining selected statistical tests and the maximum likelihood estimation method, the most accurate model of reliability of deliveries was obtained. Using the model which was generated, selected reliability indices were determined, such as: reliability of deliveries, unreliability of deliveries, failure rate of deliveries. Consequently, the number of future failed deliveries was forecast, taking into account the confidence bounds. The approach presented may be easily applied in companies in the logistics sector. The authors underlined that the reliability of deliveries is one of the key factors determining business competitiveness.
Ključne riječi
Nevada Chart; reliability of deliveries; warranty analysis; Weibull distribution
Hrčak ID:
258232
URI
Datum izdavanja:
6.6.2021.
Posjeta: 819 *