A rule-based planning system for parallel multiproduct manufacturing lines

1994 ◽  
Vol 5 (4) ◽  
pp. 349-359 ◽  
Author(s):  
A. ARTIBA
Keyword(s):  
Planning System ◽  
Rule Based ◽  
Multiproduct Manufacturing

CMM Measurement Planning in FAPPS

2000 ◽  
Author(s):  
Sungdo Ha ◽  
Inshik Hwang ◽  
Myon Woong Park ◽  
Hyung-Min Rho
Keyword(s):  
Process Planning ◽  
Metal Cutting ◽  
Automatic Generation ◽  
Planning System ◽  
Automatic Process ◽  
Machining Processes ◽  
Machining Features ◽  
Rule Based ◽  
Process Planning System ◽  
Measurement Planning

Abstract FAPPS (Feature-based Automatic Process Planning System) is developed as a comprehensive metal cutting process planning system operated in PC environments. It can recognize the machining features automatically from a given 3D part design model, and then generates operation sheets, divided process drawings, NC codes, and inspection sheet. It consists of the following modules: tolerance input module for menu-driven input of tolerances, feature recognition module for automatic recognition of pre-defined machining features and compound features, process planning module for rule based determination of machining processes, divided process drawing module for automatic generation of divided process drawings, operation planning module for rule based generation of specific operation plans, and measurement planning module for automatic generation of CMM measurement plans. The CMM measurement planning in FAPPS uses both geometric information and tolerance information from CAD files in order to determine measurement surfaces, number and positions of measurement points, and measurement sequences for inspecting machined parts. The measurement plan is represented in DMIS format for automated measurements using CMM’s. The measurement planning module that is realized in FAPPS is explained in this paper with the developed algorithms. Fuzzy logic calculation is used to determine the number of measurement points and geometric consideration for selecting measurement positions is performed.

Guiding urban self-organization: Combining rule-based and case-based planning

2019 ◽  
Vol 47 (2) ◽  
pp. 304-320 ◽  
Author(s):  
J Partanen
Keyword(s):  
Coupled System ◽  
Planning System ◽  
Self Organization ◽  
Case Based Reasoning ◽  
Rule Based ◽  
Urban Dynamics ◽  
Mixed Use ◽  
Planning Procedure ◽  
Consistent Manner ◽  
Case Based

In cities, positive self-organization, reflecting the preferred pattern formation resulting from dissipative decision making of activities, is a key promoter of urban dynamics. The urban planning system is limited in recognizing it, but planners adapt to these autonomous processes by deviating from the plan. The result is a dual system of rules and systematic exceptions, which lacks the ability to steer and evaluate the overall direction of urban progress. Similar yet explicit dual problem-solving procedures of statutory rule frameworks and adaptations applying previous cases are common in many fields. Applying this multi-disciplinary knowledge, I propose a dual, computation-supported planning procedure combining rule-based and case-based reasoning. Such planning could respond to urban self-organization, while guiding urban dynamics in a consistent manner. The operation of this coupled system is illustrated using the empirical example of Lielahti, a mixed-use working place district in the Finnish city of Tampere in an exploratory manner.

scholarly journals Rule-based optimization approach for airline load planning system

2010 ◽  
Vol 1 (1) ◽  
pp. 1455-1463 ◽  
Author(s):  
Feng Li ◽  
Chunhua Tian ◽  
Hao Zhang ◽  
Wade Kelley
Keyword(s):  
Planning System ◽  
Optimization Approach ◽  
Rule Based ◽  
Load Planning

Analysis of an efficient rule-based motion planning system for simulating human crowds

2010 ◽  
Vol 26 (5) ◽  
pp. 367-383 ◽  
Author(s):  
Muzhou Xiong ◽  
Michael Lees ◽  
Wentong Cai ◽  
Suiping Zhou ◽  
Malcolm Yoke Hean Low
Keyword(s):  
Motion Planning ◽  
Planning System ◽  
Rule Based

scholarly journals RULE-BASED PROCESS PLANNING AND SETUP PLANNING WITH CONSIDERATIONS OF GD&T REQUIREMENTS

2017 ◽  
Vol 45 (1) ◽  
pp. 13 ◽  
Author(s):  
Dušan Šormaz ◽  
Mayur Wakhare ◽  
Nur-Ul Arafat
Keyword(s):  
Process Planning ◽  
Planning System ◽  
Setup Planning ◽  
Process Selection ◽  
Operation Sequencing ◽  
Rule Based ◽  
Computer Aided Process Planning ◽  
Process Planning System ◽  
Design And Manufacturing ◽  
Milling Machines

Computer aided process planning is a critical link between design and manufacturing. The ready process plan in integration of design and manufacturing is always important to save manufacturing time, reduction of work in progress. This paper describes a rule based intelligent process planning system which selects necessary manufacturing processes features in the metal mechanical parts. Novel feature of this system is the use of detailed GD&T specification on both process selection and setup planning modules. Process selection module selects the necessary processes for manufacturing the hole feature that depends on feature dimensions, feature precedence, and specified geometric and dimensional tolerances. Setup planning module determines the sequences of the setups of the prismatic part on the machine tools that includes clustering and sequencing of the features in setups. This module uses rules for the following steps: tool approach direction definition, setup formation based on GD&T requirements, resolution of possible cyclic setups, setup sequencing and operation sequencing in setups. Rules can generate valid setups for both 3-axis and 4-axis milling machines. The procedures are illustrated on several examples.

Distributed Integration of Knowledge-Based Process Planning With CAM Software

2004 ◽  
Author(s):  
Dusan N. Sormaz ◽  
Narender Neerukonda ◽  
Vikesh Jain
Keyword(s):  
Process Planning ◽  
Manufacturing Systems ◽  
Tool Path ◽  
Planning System ◽  
Rule Base ◽  
Seamless Integration ◽  
Rule Based ◽  
Traditional Mode ◽  
Cad Cam ◽  
Cam Software

Seamless integration of manufacturing planning activities, though being imperative for application of advanced technologies, is still not completely developed. Integration between design and manufacturing systems is usually done within tightly implemented suite of CAD/CAM applications. However, there is a need to integrate these applications into a wider framework in which manufacturing knowledge is incorporated into planning tasks, and tasks may be executed in distributed environment. This paper proposes such a framework. The methodology is based on integration of CAM software with rule-based process planning on several levels. The basis for this approach is existence of feature based CAD model that is usually designed in CAD package. The process-planning task can be performed in two modes: traditional mode and distributed mode. In traditional mode, tightly integrated CAM package is used to create necessary tool paths and detailed specification for particular geometry from the design. They are exported into a CAPP package for cost optimization and sequencing for the final NC program. Distributed mode allows utilization of rule base for creation of manufacturing operations. Results are imported into CAM package for tool path generation and NC code post processing. CAD/CAM package exports its feature into rule-based process planning system. For each feature, rules are fired in order to select the most appropriate machining operation, tool, and cutting parameters. Process sequencing can also be performed. In both modes, integration may be carried out between different computers using TCP/IP protocol to enable distributed processing of different tasks. The current results in implementing the prototype, which supports proposed methodology and few test cases of both operating modes, are also described.

PROCASE: A Prototype of Intelligent Case-Based Process Planning System With Simulation Environment

1993 ◽  
Author(s):  
Hao Yang ◽  
Wen F. Lu
Keyword(s):  
Process Planning ◽  
Planning System ◽  
Simulation Environment ◽  
Rule Based ◽  
Process Plans ◽  
Integrated Methodology ◽  
Process Planning System ◽  
Machining Operations ◽  
User Friendly ◽  
Case Based

Abstract An intelligent case-based process planning system with interactive graphic simulation environment, PROCASE, is developed to demonstrate an integrated methodology of case-based process planning system. In PROCASE, both the mechanical part features and the machining operations are represented with a frame based scheme. PROCASE contains a retriever, a modifier, a simulator and a repairer. It distinguishes itself from traditional rule-based process planning systems by representing the process planning knowledge through previous process planning cases instead of production rules. It therefore can overcome some problems in the traditional rule-based expert systems. PROCASE currently resides in IRIS Indigo workstation. With a user friendly graphic environment, the generated process plans can be demonstrated vividly. This simulation environment not only serves as a good assistance in debugging, but also helps the user to be convinced of the outcomes of the reasoning of PROCASE.

Using Conventional Articulation Tests With Highly Unintelligible Children

1992 ◽  
Vol 23 (1) ◽  
pp. 52-60 ◽  
Author(s):  
Pamela G. Garn-Nunn ◽  
Vicki Martin
Keyword(s):  
Test Results ◽  
Phonological Processes ◽  
Rule Based ◽  
Severity Level ◽  
Error Sensitivity ◽  
Conventional Tests ◽  
Severity Levels ◽  
Conventional Test ◽  
Impaired Children

This study explored whether or not standard administration and scoring of conventional articulation tests accurately identified children as phonologically disordered and whether or not information from these tests established severity level and programming needs. Results of standard scoring procedures from the Assessment of Phonological Processes-Revised, the Goldman-Fristoe Test of Articulation, the Photo Articulation Test, and the Weiss Comprehensive Articulation Test were compared for 20 phonologically impaired children. All tests identified the children as phonologically delayed/disordered, but the conventional tests failed to clearly and consistently differentiate varying severity levels. Conventional test results also showed limitations in error sensitivity, ease of computation for scoring procedures, and implications for remediation programming. The use of some type of rule-based analysis for phonologically impaired children is highly recommended.

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