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  • 1
    Electronic Resource
    Electronic Resource
    Optimising robot workcell layout (1996)
    Springer
    The international journal of advanced manufacturing technology 12 (1996), S. 377-385 
    Details
    ISSN: 1433-3015
    Keywords: Optimisation ; Robot workcell layout ; Spatial representation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract This paper describes a heuristic algorithm for optimising the layout of a robot workcell. The algorithm attempts to minimise the total path of travel of a robot arm for a given sequence of operations by determining the relative positions and orientations of the stations in the workcell. A unique spatial representation system is used to model the shapes and orientation of the stations in the workcell. The representation is very flexible and can closely represent the shapes of many common types of peripheral machine encountered in a robot workcell. The algorithm has been implemented on an IBM compatible PC and the results obtained are promising.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01179814
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Nonlinear optimisation in tolerance charts — A study of objective functions (1998)
    Springer
    The international journal of advanced manufacturing technology 14 (1998), S. 423-427 
    Details
    ISSN: 1433-3015
    Keywords: Nonlinear ; Objective function ; Optimisation ; Tolerance charts
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract One of the main objectives in tolerance charting is to determine the working dimensions and tolerances at the lowest cost without violating the blueprint specifications. It is with this objective in mind that the authors present a comprehensive study of the effect of the choice of an objective function on the final manufacturing cost. Optimisation of the objective functions has been done using PROFORT (nonlinear optimisation). The paper deals with a single example, solved using two linear and a nonlinear objective function.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01304621
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  • 3
    Electronic Resource
    Electronic Resource
    The Noded graph approach to stack analysis (1998)
    Springer
    The international journal of advanced manufacturing technology 14 (1998), S. 343-349 
    Details
    ISSN: 1433-3015
    Keywords: Geometric dimensioning and tolerancing ; Graphical model ; Stack analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The tolerance chart is a graphical method for representing the manufacturing dimensions of a workpiece or assembly, at all stages of its manufacture. The chart provides an intermediate control system of checks and balances to ensure that processing dimensions and tolerances will meet those specified on the print. Tolerance charts are generally used in studying the dimensional problems on individual parts. However, they have proved tedious in their application to assemblies. This paper presents a simple and systematic approach to the process of tolerance stack analysis. The “Noded graph” model is constructed, representing the given and the unknown dimensions. Links are then established, using the model, which help to formulate the stack path of interest into a linear equation. The equation is used to complete the tolerance stack analysis module. This will be explained using a variety of geometric dimensioning and tolerancing examples. In addition, it is simple and hence easy to practise and very logical.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01178913
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    Paper (German National Licenses)
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