Key performance indicators to evaluate material availability for the assembly of large scaled products

Theme XXL products, Production planning
Project title Key performance indicators to evaluate material availability for the assembly of large scaled products (MatKenn)
Project duration 01.01.2012 – 31.12.2013

The focus of this research project is the on time assembly of tower segments of wind turbines. A performance indicator based system that gives early warning in case of non-attainment of a work target was developed within this project. With this system it is possible, e. g. in case of material non-availability, to intervene and countermeasure at an early stage. The developed key indicator system provides the monetary and timely effects of particular non-availabilities. It is supported by a software demonstrator, which processes and visualizes data. 

Publications about the project

The range of structure sizes for industrial products produced today is increasingly expanding. This trend is evident in both small-scale (e.g. semiconductor applications) and large-scale (e.g. wind turbine rotors) products. While definitions already exist for smaller scale device structures, the conceptual distinction between conventional large products and large scale products is currently insufficient. In this study, we present a potential basis for the definition of large scale products. To achieve this, we derive hypotheses and examine these in the context of an empirical study using the examples of several sample products. It is shown that the transition from conventional products to large scale products is characterized by a disproportionate increase in product costs due to the augmentation of a characteristic product feature. Eventually we derive a proposed definition which characterizes large scale products in the field of production engineering.

xxl-product, large-scale, xxl, definition

Schedule variances in the cycle of field assembly often cause high unplanned costs. This is particularly true for capital-intensive, large-scale products. Currently no model exists which supports cost determination already during planning, implementation or after assembly. Thus, comprehensive logistics controlling is not possible which prevents high schedule adherence and low logistics costs even on the occurrence of disruptions. In this paper, a research project is presented, which has the goal of developing a method by which a deadline- and cost controlling of the material availability for the assembly of wind turbines can be secured.

material provisioning, site assembly, cost controlling, schedule deviation, early warning system, fo

At the Institut für Integrierte Produktion Hannover gGmbH (IPH) a method is currently being developed, that supports the controlling of logistical targets and associated logistics costs in the supply chain for the assembly of wind energy plants. The considered supply chain comprises all steps from the production of the individual components up to the handover to the customer. The method enables continuous prediction whether date variances have a critical monetary and scheduling impact on the project success.

material provisioning, site assembly, cost controlling, schedule deviation, early warning system, fo

Sponsor

The project no. 11.2-76221-99-2/10 was part of the joint research project Innovations for the manufacturing of large scale products funded by the Ministry for the Economy, Labour and Transport of Lower Saxony and the Lower Saxony Ministry of Economics, Construction, Transport and Digitalization.

Your contact person

Mareile Kriwall
Dipl.-Ing.

Manager process technology