TY  - JOUR
A1  - Pfaff, Raphael
A1  - Enning, Manfred
A1  - Sutter, Stefan
T1  - A risk‑based approach to automatic brake tests for rail freight service: incident analysis and realisation concept
JF  - SN Applied Sciences
N2  - This study reviews the practice of brake tests in freight railways, which is time consuming and not suitable to detect certain failure types. Public incident reports are analysed to derive a reasonable brake test hardware and communication architecture, which aims to provide automatic brake tests at lower cost than current solutions. The proposed solutions relies exclusively on brake pipe and brake cylinder pressure sensors, a brake release position switch as well as radio communication via standard protocols. The approach is embedded in the Wagon 4.0 concept, which is a holistic approach to a smart freight wagon. The reduction of manual processes yields a strong incentive due to high savings in manual
labour and increased productivity.
KW  - Freight rail
KW  - Brake test
KW  - Incident analysis
KW  - Train composition
KW  - Brake set-up
Y1  - 2022
U6  - http://dx.doi.org/10.1007/s42452-022-05007-x
SN  - 2523-3971
N1  - Corresponding author: Raphael Pfaff
VL  - 4
IS  - 4
SP  - 1
EP  - 14
PB  - Springer
CY  - Cham
ER  - 
TY  - JOUR
A1  - Luft, Angela
A1  - Bremen, Sebastian
A1  - Luft, Nils
T1  - A cost/benefit and flexibility evaluation framework for additive technologies in strategic factory planning
JF  - Processes
N2  - There is a growing demand for more flexibility in manufacturing to counter the volatility and unpredictability of the markets and provide more individualization for customers. However, the design and implementation of flexibility within manufacturing systems are costly and only economically viable if applicable to actual demand fluctuations. To this end, companies are considering additive manufacturing (AM) to make production more flexible. This paper develops a conceptual model for the impact quantification of AM on volume and mix flexibility within production systems in the early stages of the factory-planning process. Together with the model, an application guideline is presented to help planners with the flexibility quantification and the factory design process. Following the development of the model and guideline, a case study is presented to indicate the potential impact additive technologies can have on manufacturing flexibility Within the case study, various scenarios with different production system configurations and production programs are analyzed, and the impact of the additive technologies on volume and mix flexibility is calculated. This work will allow factory planners to determine the potential impacts of AM on manufacturing flexibility in an early planning stage and design their production systems accordingly.
KW  - additive manufacturing
KW  - factory planning
KW  - manufacturing flexibility
KW  - volume flexibility
KW  - mix flexibility
Y1  - 2023
U6  - http://dx.doi.org/10.3390/pr11071968
SN  - 2227-9717
VL  - 11
IS  - 7
PB  - MDPI
CY  - Basel
ER  -