Exploring factors causing and amplifying delivery schedule instability: An OEM perspective from the automotive industry
Paper i proceeding, 2020
The purpose is to explore how OEMs generate instabilities in material delivery schedules within automotive supply chains. Design A multiple case study of three automotive OEMs were conducted to collect qualitative and quantitative data as to explore factors causing and amplifying schedule instability measured by inaccuracy and nervousness. The quantitative data includes two-year delivery schedule history, and the qualitative data includes the OEMs’ manufacturing planning and control processes and policies.
Findings
From literature and cross-case analysis, the study generates a framework of causing and amplifying variables. Four factors (take rate, transport lead times, unit loads, and pick-up frequency) were proposed to have common and significant impact on schedule instability. Take-rate and transport lead time amplify schedule inaccuracies, and pick-up frequency amplifies schedule inaccuracy for items with low take-rates.
Research implications
The quantitative study analyses the amplifying effect of a few selected factors at one of the OEMs. Future studies may address additional factors including causes like production disturbances and may validate the findings at more OEMs.
Practical implications
Understanding the amplifying effect at an item level guides the instability dampening policy making at OEMs to, for instance, establish clusters of components with sensitivity profiles. Original The study compliments previous frameworks with refined and additional factors, exploring empirically rich data about how OEMs, an understudied perspective, propagate schedule instability, an area dominated by simulation studies.
Schedule Instability
MRP
Nervousness
Schedule Inaccuracy
Rescheduling
Författare
Hafez Shurrab
Chalmers, Teknikens ekonomi och organisation, Supply and Operations Management
Patrik Jonsson
Chalmers, Teknikens ekonomi och organisation, Supply and Operations Management
Proceedings of the Nofoma conference 2020
Virtual, Reykjavik, Iceland,
Nya data-drivna lösningar för förbättrad plankvalitet, informationsdelning och planering i fordonsindustrins försörjningskedjor
VINNOVA (2018-02695), 2018-10-01 -- 2021-05-31.
FFI - Fordonsstrategisk forskning och innovation (2018-02695), 2018-10-01 -- 2021-05-31.
Ämneskategorier
Produktionsteknik, arbetsvetenskap och ergonomi
Annan maskinteknik
Transportteknik och logistik
Styrkeområden
Transport
Produktion