Peter Nyhuis

Leibniz Universität Hannover · Institute of Production Systems and Logistics

Um wettbewerbsfähig zu bleiben, müssen Unternehmen ein vielfältiges Produktportfolio anbieten, das den individuellen Wünschen der Kunden entspricht. Dies führt zu einer zunehmenden Variantenvielfalt und steigenden Kosten in Fabriksystemen. Die frühzeitige Erkennung der Unwirtschaftlichkeit von Produktvarianten vor Produktionsbeginn ist dabei von en...

Zur Sicherung der Zukunftsfähigkeit produzierender Unternehmen ist es die Aufgabe der Fabrikplanung, den Fabrikbetrieb auf aktuelle Anforderungen einzustellen. Um das realgetreue Verhalten eines Produktionssystems unter den Einflüssen der VUKA-Welt untersuchen zu können, wurden alle wesentlichen Gestaltungselemente sowie deren Ausprägungsformen ide...

Companies must innovate to survive in competitive markets. The pressure to bring innovations to market faster and meet market and regulatory requirements challenges companies to assess early on whether an innovation delivers economic value added (EVA), even with a lack of quantification data. Sustainability, now a crucial industrial pillar, is inte...

In contrast to the conventional manufacturing industry, the regeneration of complex capital goods is subject to additional information uncertainty and disturbances throughout the order processing phase. To achieve a high logistics performance despite these constraints, supply chain configurations and appropriate tools are required to address the re...

Um die Zukunftsfähigkeit von produzierenden Unternehmen in der VUKA-Welt zu sichern, müssen frühzeitig konkrete Maßnahmen erkannt und umgesetzt werden. Diese können in verschiedenen Bereichen wie Resilienz und Ressourceneffizienz liegen und weisen komplexe Interdependenzen untereinander auf. Die Auswahl geeigneter Maßnahmen ist anspruchsvoll, beson...

A continuously growing number of product variants increases the demands on the flexibility of intralogistics transportation. One way to achieve greater flexibility is the use of cellular automated guided vehicles, which can be variably interconnected depending on the size of the product to be transported. This article explains the characteristics o...

Product quality is critical to the competitiveness of manufacturing companies facing complex challenges such as shorter product life cycles and competition that has shifted from customers competing for products to manufacturers competing for customers. Therefore, quality management is essential to satisfy today's quality requirements, focusing on e...

Neben den Produkteigenschaften Preis und Qualität stellt die Realisierung einer hohen logistischen Leistungsfähigkeit für produzierende Unternehmen eine der wichtigsten Aufgaben dar, um sich von der Konkurrenz abzuheben. Hier ergibt sich für die Unternehmen jedoch die Herausforderung, sich bei einer steigenden Komplexität der Lieferketten im Spannu...

Die langfristig erfolgreiche Implementierung eines kontinuierlichen Verbesserungsprozesses gehört zu den größten Herausforderungen in produzierenden Unternehmen. Bisherige Implementierungsansätze lassen sich nicht problemlos unter Berücksichtigung sämtlicher Anforderungen in der unternehmerischen Praxis umsetzen, da die Ansätze an die organisatoris...

In recent decades, the increasing product variant diversity has led to further flexibilization of assembly organization. The challenge is to maintain productivity with low volumes per product variant in a flow assembly line designed for high volumes. The combination of different assembly organization forms creating a hybrid, flow-oriented form repr...

Since 2000, the Institute of Production Systems and Logistics (IFA) of the Leibniz University Hannover has been offering professional training courses in which students, specialists, and managers develop new skills in designing, planning, and controlling production systems. While the initial focus of the training activities was on teaching the prin...

The target-oriented configuration of production planning and control (PPC) is a critical factor for companies with increasingly complex supply chains. The logistical performance of companies, which can be measured and expressed,e.g. with the logistical objectives delivery reliability and due-date compliance, suffers above all from the multiple infl...

Planned times for the throughput of production are key components to production planners for determining delivery dates with customers, capacity planning, scheduling and order coordination. While traditional estimation methods often rely on basic statistics and expert knowledge, data mining respectively machine learning offers the potential to comp...

As an interdisciplinary and complex task, factory planning lays the foundation for the economic efficiency of factories. Factory planning projects significantly influence the financial situation of production companies due to their high capital requirements and long lifetime. Today's inaccurate basis for decision-making in cost estimation leads to...

Adherence to customer due dates is the yardstick for the performance of manufacturing companies. In the era of same-day delivery, consumers expect reliable delivery of ordered goods and short delivery times. Also, in the field of business-to-business supply, it is evident that adherence to delivery dates is a fundamental logistical objective for co...

In early innovation phases, the monetary evaluation of process innovations is a challenge for companies due to a lack of data. However, an innovation evaluation is essential in an early innovation phase to ensure that process innovations deliver economic value added (EVA) in early innovation phases and to channel technology transfer expenditures in...

Beitrag auf dem Expertenforum PPS 2023. Anhand von 3 Use-Cases wird aufgezeigt, wie das Systemverständnis und die Transparenz über die Abläufe und Wirkzusammenhänge in der Produktionslogistik gestärkt werden kann.

Increasingly dynamic markets and shorter product life cycles are forcing companies to adapt their factories through reorganizations continuously. To ensure that such reorganization projects can be successfully implemented, quality management (QM) must be involved in the factory planning process (FAP) at an early stage. In this context, holistic qua...

Complex capital goods such as aircraft engines are stressed by the environment and actual operation. These influences, e.g. air pollution, lead to wear of the capital goods. Therefore, capital goods are maintained, repaired or overhauled (MRO). Regeneration is carried out by MRO service providers and enables an elongation of the utilization period...

On-time delivery is one of the most critical performance characteristics of manufacturing companies. To remain competitive, companies must constantly strive to optimize their logistical performance. Poor on-time delivery has complex causes that are difficult to identify due to the many logistical interdependencies. Increasing market volatility, com...

The dynamic environment of manufacturing companies not only directly impacts products and their design but also affects the configuration of production systems. Traditionally used production principles, such as the flow principle, which could previously be operated economically for (homogeneous) standard products, now no longer meet the requirement...

Die zunehmende Digitalisierung der Arbeitswelt stellt Mitarbeitende und Führungskräfte vor neue Herausforderungen. Kompetenzanforderungen ändern sich, die Personaleinsatzplanung wird komplexer und ein digitalisiertes Shopfloor Management wird benötigt. In diesem Fachbeitrag werden die Ergebnisse einer Umfrage zu den Themen Kompetenzen, Personaleins...

Die Resilienz von Lieferketten gewinnt für produzierende Unternehmen in Zeiten schwerer Störungen durch Krisen massiv an Bedeutung. Die Auswahl von Zulieferern ist ein zentraler Aspekt bei dem Aufbau einer resilienten Lieferkette. Aktuell fehlt jedoch eine ganzheitliche Methode zur Auswahl von Lieferanten unter Berücksichtigung der Resilienz. In di...

Die Realisierung eines geplanten Layoutkonzepts stellt eine komplexe Teilaufgabe innerhalb der Fabrikplanung dar. Insbesondere die zeitliche Anordnung der notwendigen Umzugsschritte unter Berücksichtigung vorhandener Restriktionen wird nach aktuellem Stand meist manuell ausgeführt. Eine methodische Planungsunterstützung könnte zu einer entscheidend...

The cost and performance structure of a factory is determined in factory planning and activated in the operation phase with a time delay. Even though the majority of investments result from structural planning, the first conceptual and most important step in factory planning, the majority of costs occur during factory operation, the longest phase o...

At ever shorter intervals, manufacturing and processing companies of all industries are confronted with external or internal disruptions and crises that need to be managed. Consequently, a corporate focus on robust supply chains and processes is essential. At the same time, crises and their impact on supply chains cannot be predicted. To be able to...

Zunehmend dynamische Märkte und kürzere Produktlebenszyklen zwingen Unternehmen zu kontinuierlichen Anpassungen ihrer Fabriken in Form von Reorganisationen. Um sicherzustellen, dass solche Reorganisationsprojekte erfolgreich umgesetzt werden können, ist es wichtig, dass das Qualitätsmanagement (QM) frühzeitig in die Fabrikplanung (FAP) integriert w...

Für komplexe Fabrikplanungsprojekte, wie z. B. die Neu- oder Erweiterungsplanung, ist in der Regel ein umfangreicher Kapitalbedarf erforderlich, der die finanziellen Unternehmensmittel stark belastet. Für die richtige Beurteilung der Wirtschaftlichkeit eines Fabrikplanungsprojektes ist eine Abschätzung der Baukosten von existenzieller Bedeutung. Of...

In PPC, there are many interactions and dependencies that are difficult for the practical user to keep track of. These insecurities often lead to a configuration of PPC, which is locally optimized but not optimally carried out in the overall context of a company's target system. With a specially developed description and modeling approach, the inte...

Steady increasing individual customer requirements characterize production processes in aircraft manufacturing. In addition, these production processes are usually marked by rigid cycle times and a lack of flexibility potential. Due to these constraints, the increasing number of variants in flow production leads to considerable efficiency deficits...

An efficient order picking process is required to realize short-term and on-time deliveries in distribution logistics. The selection of a suitable warehouse layout, as well as an efficient picking strategy needs to be dependent on an evaluation of the picking performance. The paper presents a procedure to compare variable layouts of distribution ce...

In order to increase the effectiveness and efficiency of (digital) production controlling, information systems are useful tools to provide and display required information. Regarding condensing information related to production logistics, logistic models and frameworks, like the Supply Chain Operations Reference (SCOR) model, provide a collection o...

Modern factory planning requires a holistic perspective taking economic as well as environmental sustainability over the entire factory life cycle into account. As a complex socio-technical system, the factory life cycle consists of multiple life cycles of the inherent factory elements. A holistic understanding of the individual life cycles and the...

The production environment is in a constant state of change. This results in a continuous change of production processes. A key factor in mastering change is to increase flexibility. To achieve this, the targeted training of employees is essential. Within the framework of the research project “reQenrol”, research is being conducted to sustainably d...

Against the background of the climate crisis, fast innovation space in emerging technologies and the global competitive environment for manufacturing companies, a sound understanding of the life cycle behavior of factory systems becomes more and more important. The decision context of the factory life cycle conveys a high level of complexity, e.g....

Die Qualität einer Lehrveranstaltung zeichnet sich neben den Lehrinhalten insbesondere durch die Elemente des Constructive Alignments aus. Dieses umfasst die drei gleichwertigen Bestandteile: Lernziele, Lernumgebung sowie Methoden und die anschließende Prüfung. Zum Gelingen einer ganzheitlich geschlossenen Lehrveranstaltung ist eine hinreichende Pl...

Die Auftragsabwicklung im Flugzeugbau ist aufgrund stetig steigender Kundenanforderungen und der resultierenden Variantenvielfalt durch eine zunehmende technische und organisatorische Komplexität geprägt. Bisherige, auf starre Taktung ausgerichtete Produktionsprinzipien und -strukturen werden den Anforderungen an eine hohe logistische Leistungsfähi...

Bekannte Rahmenwerke der Produktionsplanung und -steuerung (PPS), wie das Aachener PPS-Modell oder das Hannoveraner Lieferkettenmodell (HaLiMo), sind integrierte produktionslogistische Modelle, die Unternehmen für die Konfiguration ihrer eigenen PPS eine entscheidende Grundlage liefern. Dennoch entstehen bei der Verknüpfung von Theorie und Praxis h...

Abstract The conflict of objectives between productivity and the controllability of a growing product spectrum poses significant challenges to the assembly systems of numerous industrial companies. However, the capabilities of existing organizational forms are no longer sufficient to be able to map variant time-diverging content in an economic fram...

Abstract In addition to short-term fluctuations in demand quantities, variant mix fluctuations of customized products reinforce the need for efficient use of load balancing measures. As a solution approach, both a methodology for operationalizing load flexibility and a software demonstrator for decision support for SMEs are being developed at the I...

The intensification of competition in the global environment means that companies have to respond more actively to the individual wishes of their customers. The introduction of additional product variants in the course of the factory life cycle increases customer perception and enhances product attractiveness on the market. Decisions on the introdu...

In literature on the investigation of cause-effect relationships within production planning and control (PPC), many models and approaches can be found. These range from the didactic description of cause-effect relationships to generally applicable models for describing the effects and impacts of a procedure selection or parameterisation for a PPC t...

Companies can differentiate themselves from competitors through higher logistical performance. It must be valued in monetary terms to realise the advantages of higher logistical performance. According to available information and diverse customer types, different analysis needs to be carried out. In this paper, the unit price potential of a deliver...

In today’s highly dynamic and volatile market, the need for change increases steadily in companies induced by megatrends like globalisation or digitalisation. To keep up with current developments and to meet ever higher customer demands ensuring their satisfaction many companies initiate a digital transformation process. Digital Transformation (DT)...

Manufacturing companies are faced with the challenge of operating cost-efficiently and remaining competitive in a turbulent environment with constantly changing demands on production. To meet these challenges, factory planning has developed concepts of flow orientation and transformability. Through decades of research, factory planners now have ext...

Manufacturing companies are facing increasing customer requirements regarding delivery times and delivery reliability. In this context, customers have different desired delivery times. The fulfillment of heterogeneous customer delivery times represents a major challenge in the competition for customers. If companies succeed in reliably meeting thei...

As companies continue to globalise, manufacturers face the challenge of strategically adjusting their vertical integration and restructuring production and supply chains. This leads manufacturers to increasingly pursue two strategies of restructuring. On the one hand, in the form of outsourcing value-adding activities, the focus is being placed on...

Despite a high degree of uncertainty about the scope of future orders and the corresponding capacity and material demands, Maintenance, Repair & Overhaul (MRO) service providers face high expectations regarding due date reliability by their customers. To meet these requirements while at the same time keeping delivery times short, the availability o...

A major element of a production system is the workforce, which can cause volatility due to individual performance and varying competence levels. Competence development is a requirement for mandatory qualifications and necessary to ensure performance of the production. Therefore, functional flexibility is an important dimension, because it states ho...

In recent years, Building Information Modeling (BIM), which originated in the construction industry, is increasingly finding its way into the planning of factories and production environments. In the scientific assessment of this change and possible future scenarios regarding BIM, the research mostly focuses on the planning process and the influenc...

Factories are complex systems, which are characterized by interlinked and overlapping life cycles of the constituent factory elements. Within this context, the heterogeneity of these life cycles results in life cycle complexity and corresponding conflicts and trade-offs that need to be addressed in decision situations during the planning and operat...

Production in industrial companies is exposed to more and more frequent cycles of change, while at the same time, the market demand in terms of flexibility, high logistical performance and low costs are constantly increasing. Production systems must thus be designed to be capable of change. In order to increase the transformability of production sy...

Civil Aircraft development and production are facing significant challenges in future. On the one hand, the flight-path to carbon neutral aviation, like using liquid hydrogen, will require game changing technologies. Simultaneously, competition, especially on the single aisle market, is evolving fast and puts pressure on market shares and margins....

Die Anforderungen an zukünftige Fabriken wachsen im Zuge der immer komplexeren Vernetzung von Wertschöpfungsprozessen stetig. Dieser erhöhte Druck erfordert eine digitale Transparenz, um mit den gesteigerten Herausforderungen, insbesondere im Zielfeld Nachhaltigkeit, mitzuhalten. Die Themen Digitale Fabrik, Industrie 4.0 und Building Information Mo...

Summary Employee competencies are a key factor for the enhancement of productivity and flexibility in production. However, they have received inadequate consideration in work planning so far. In this paper a methodology for technology- and competencebased work planning as well as work instructions for an integrated work scheduling are derived. In a...

Turbulences in the factory environment have represented permanent structural transformation since the nineteen nineties through continuous changes that are intensified by megatrends such as digitalization. As the ability to forecast developments is practically non-existent, factory planning is based on assumptions and is associated with planning ri...

Abstract The demands on future factories are growing steadily in the course of the increasingly complex networking of value creation processes. This increased pressure requires increased digital transparency in order to keep up with the increased challenges, especially in the target field of sustainability. The topics Digital Factory, Industry 4.0...

The regeneration of complex capital goods is subject to significant information uncertainty with regard to the capacity and material demand to be expected from a regeneration order. One suitable measure to prevent losses in capacity utilization or delays caused by missing material supply is pooling of spare parts over several pool stages. In order...

This congress proceedings provides recent research on leading-edge manufacturing processes. The aim of this scientific congress is to work out diverse individual solutions of "production at the leading edge of technolgy" and transferable methodological approaches. In addition, guest speakers with different backgrounds will give the congress partici...

Providers of maintenance, repair and overhaul (MRO) services for complex capital goods, such as aircraft engines, which are indispensable for the customers to perform their services, are facing increasing market dynamics as well as constantly growing, diversifying customer requirements. The ability to achieve (the required) high logistics performan...

Die Reorganisation von Fabrikobjekten in der Restrukturierung bestehender Fabriken ist mit zahlreichen Herausforderungen verbunden. Im Beitrag wird ein Überblick über mögliche Zielkonflikte und zentrale Einflussfaktoren auf den Projekterfolg gegeben.

Herkömmliche Ansätze zur Klassifizierung von Produkten reichen heutzutage nicht mehr aus, um die Vorteilhaftigkeit von Produktportfolios ganzheitlich zu bewerten. Insbesondere logistische Treibergrößen wie die Materialvielfalt oder Rüstzeiten werden bisher typischerweise nicht im Rahmen der Produktportfoliooptimierung genutzt. Dieser Beitrag system...

Unternehmen initiieren regelmäßig Projekte, um durch ständige Anpassung und Veränderung ihre Wettbewerbsfähigkeit zu sichern. Zur effizienten Planung und Steuerung der Projekte werden Modelle des Multiprojektmanagements (MPM) eingesetzt. In diesem Beitrag werden Abhängigkeiten zwischen Wirkgrößen solcher Modelle in Form von Stell- und Regelgrößen u...

The order processing strategy directly influences the economic and logistic objectives of manufacturing companies. In industrial practice, the order processing strategy is usually chosen based on a few primarily qualitative decision criteria or employees’ experience. The increasingly volatile markets require a differentiated decision of the order p...

Since the beginning of global networking, the environment of production systems has been considered a turbulent zone, in which the unpredictability of economic, technical and political trends characterizes a phase of sudden and high speed of change. These changes can lead to disturbances in factory operation resulting in economic losses. Therefore,...

In order to increase the effectiveness and efficiency of (digital) production controlling, information systems are useful tools to provide and display required information. Regarding condensing information related to production logistics, logistic models and frameworks, like the Supply Chain Operations Reference (SCOR) model, provide a collection o...

Companies and their factories face constant change in today's world. Cost-intensive factory planning projects are being carried out in shorter intervals due to the increasing dynamism of the production environment. The related investments have a substantial impact on the liquidity of companies. Shorter production life cycles and changing consumer b...

Die Produktionsplanung und -steuerung in MRO-Unternehmen unterliegt starken Unsicherheiten hinsichtlich des Regenerationsumfangs und -zeitpunkts. Aufgrund einer hohen Informationsunschärfe infolge unterschiedlichster Schadensfälle sowie einer Vielzahl interner und externer Einflüsse ist die Vorhersage von Lieferzeiten sowie deren möglichen Ausprägu...

Die synergetische Fabrikplanung dient der Intensivierung der Zusammenarbeit in Fabrikplanungsprojekten. Eine Weiterentwicklung dieses Vorgehens zur Beherrschung wachsender Datenmengen existiert jedoch bislang nicht. Jenseits der Fabrikplanung hat sich für diese Herausforderung das Building Information Modeling (BIM) etabliert. In diesem Beitrag wir...

Fluctuations in demand pose a significant challenge for manufacturing companies. As fluctuations increase, an imbalance between capacity availability and capacity requirements more likely occurs. This can lead to scattering load in production and consequently result in low logistical performance. Capacity synchronisation must be carried out to reco...

In PPC, there are many interactions and dependencies that are difficult for the practical user to keep track of. These insecurities often lead to a configuration of PPC, which is locally optimized but not optimally carried out in the overall context of a company's target system. With a specially developed description and modeling approach, the inte...

Complexity in the decision-making process results from the interaction of various parameters. Exemplary influencing factors are the durability of products, the desired delivery times, and the required product variants. In practice, uncertainties of customer behavior and existing time pressure complicate decision-making processes even more. Given th...

Abstract Competence-based Workforce Scheduling and On-the-Job Training as the Key to Quality Improvement in Complex Production Processes. To ensure high quality despite increasing flexibility requirements, employees must be deployed in a competence-based manner and receive targeted further training. As a solution, the „reQenrol“ project is developi...

Prozessuale und organisatorische Innovationen können einen Wettbewerbsvorteil für Unternehmen generieren. Eine Bewertung der Einflüsse dieser Innovationen auf monetäre und produktionslogistische Zielgrößen vor der Implementierung wird jedoch aufgrund intransparenter Wirkzusammenhänge erschwert. Mit dem Ziel eines Rahmenwerks zur monetären und produ...