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    Chapter and Conference Paper

    Backtracking of Jobs and Machine Location Problems

    In flexible manufacturing systems, production lines are often laid out along a linear track. In these lines, facilities engineers attempt to simplify the workflow of jobs by avoiding a job shop structure in fa...

    Bhaba R. Sarker, Wilbert E. Wilhelm, Gary L. Hogg, Min-Hong Han in Material Handling ’90 (1991)

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    Book

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    Chapter

    Emerging trends in assembly

    In early studies of assembly by Walker and Guest (1952) after World War II, the focus was on manual assembly work in the context of mass production. An emerging technological trend at that time was the assembl...

    Shimon Y. Nof, Wilbert E. Wilhelm, Hans-Jürgen Warnecke in Industrial Assembly (1997)

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    Chapter

    Introduction and fundamental concepts of assembly

    The purpose of Chapter 1 is to provide the reader with an overview of the scope of assembly. The chapter begins by describing the fundamental concepts and characteristics of assembly, followed by a review of i...

    Shimon Y. Nof, Wilbert E. Wilhelm, Hans-Jürgen Warnecke in Industrial Assembly (1997)

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    Chapter

    Design for assembly

    In the ‘old days’ assembly methods were selected by engineers only after the product design had been completed, approved and authorized. As long as all the assembly work was manual, human assemblers could be e...

    Shimon Y. Nof, Wilbert E. Wilhelm, Hans-Jürgen Warnecke in Industrial Assembly (1997)

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    Chapter

    Assembly system design and planning

    This chapter deals with key aspects of designing and planning assembly systems. Until recently, assembly has been considered by many to be a low technology process, and its costs and importance may have been u...

    Shimon Y. Nof, Wilbert E. Wilhelm, Hans-Jürgen Warnecke in Industrial Assembly (1997)

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    Chapter

    Sequencing and scheduling of assembly operations

    Design, planning and performance evaluation — the topics of Chapters 4, 5 and 6 — establish the system in which assembly operations are performed. Decisions based on design, planning and performance evaluation...

    Shimon Y. Nof, Wilbert E. Wilhelm, Hans-Jürgen Warnecke in Industrial Assembly (1997)

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    Chapter

    Quality and inspection in assembly

    Assembly is often described as the ‘moment of truth’ for products, when finally complete subassemblies, and then the full assembly, can be tested. But it is also recognized that assembly is where previous defe...

    Shimon Y. Nof, Wilbert E. Wilhelm, Hans-Jürgen Warnecke in Industrial Assembly (1997)

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    Chapter

    Assembly tasks and technology

    Toddlers all over the world are often given toys to teach them, quite early in life, basic assembly skills. Some toys have pegs of different shapes to be inserted in matching openings in a box. Other toys have...

    Shimon Y. Nof, Wilbert E. Wilhelm, Hans-Jürgen Warnecke in Industrial Assembly (1997)

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    Chapter

    Design of assembly systems

    The success of any assembly system depends on the translation of its design into an implemented working facility. The purpose of this chapter is to describe and explain the system elements and how they are com...

    Shimon Y. Nof, Wilbert E. Wilhelm, Hans-Jürgen Warnecke in Industrial Assembly (1997)

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    Chapter

    Performance evaluation of stochastic assembly systems

    The engineer designing an assembly system is typically concerned with comparing alternative designs and must be able to evaluate the performance that each might achieve in the long run in order to select the m...

    Shimon Y. Nof, Wilbert E. Wilhelm, Hans-Jürgen Warnecke in Industrial Assembly (1997)

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    Chapter

    Time-managed material flow control

    One unique aspect of assembly is that it involves the merging of part flows. Assembly logistics thus require thoughtful coordination of material flows and present significant challenges to material flow manage...

    Shimon Y. Nof, Wilbert E. Wilhelm, Hans-Jürgen Warnecke in Industrial Assembly (1997)

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    Article

    Locating sets of identical machines in a linear layout

    The assignment of M unique machines to M locations with the objective of minimizing the total machine-to-machine material transportation cost in a flow line may be formulated as a quadratic assignment problem ...

    Bhaba R. Sarker, Wilbert E. Wilhelm, Gary L. Hogg in Annals of Operations Research (1998)

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    Article

    A Column-Generation Approach for the Assembly System Design Problem with Tool Changes

    This assembly system design problem (ASDP) is to prescribe the minimum-cost assignment of machines, tooling, and tasks to stations, observing task precedence relationships and cycle time requirements. The ASDP...

    Wilbert E. Wilhelm in International Journal of Flexible Manufacturing Systems (1999)

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    Reference Work Entry In depth

    Industrial engineering and operations research — the interface

    Edited by Saul I. Gass and Carl M. Harris

    Wilbert E. Wilhelm, John J. Jarvis in Encyclopedia of Operations Research and Ma… (2001)

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    Article

    A Technical Review of Column Generation in Integer Programming

    This paper provides a technical review of topics relevant to applying column generation methods to solve integer programs but emphasizes formulation issues as a means of achieving its goal, which is to bridge ...

    Wilbert E. Wilhelm in Optimization and Engineering (2001)

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    Article

    Enabling flexibility on a dual head placement machine by optimizing platform-tray-feeder picking operations

    The typical circuit card assembly line includes one or more dual head placement machines (DHPMs), which are capable of highly accurate placement and promise the flexibility to assemble a broad variety of circu...

    Wilbert E. Wilhelm, **aoyan Zhu in Flexible Services and Manufacturing Journal (2009)

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    Article

    A generalization of column generation to accelerate convergence

    This paper proposes a generalization of column generation, reformulating the master problem with fewer variables at the expense of adding more constraints; the sub-problem structure does not change. It shows b...

    Dong Liang, Wilbert E. Wilhelm in Mathematical Programming (2010)

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    Article

    OR/MS decision support models for the specialty crops industry: a literature review

    Specialty crops (fruits, vegetables, grapes and wine, ornamentals—nursery and floriculture—tree nuts, berries, and dried fruits) comprise a substantial—and growing—portion of agribusiness. Still, the industry ...

    Wenbo Zhang, Wilbert E. Wilhelm in Annals of Operations Research (2011)

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    Chapter

    On the Relationships Among Facility Location, Transportation Mode Selection and Material Flow Costs in Global Supply Chains

    This chapter, which explores the interplay between three significant factors in global supply chains, holds two research objectives. The first is a model to maximize after tax profit by prescribing facility lo...

    Dong Hee Son, Krishna Patwari, Wilbert E. Wilhelm, Peter Yu in Handbook of Global Logistics (2013)