Analysis of Purposeful and Incidental Interactions

1999 ◽  
Author(s):  
Ulf Liedholm
Keyword(s):  
Conceptual Design ◽  
Inputs And Outputs

Abstract Within a product there exist interactions between the sub-systems. Some interactions are purposeful others might be incidental and even detrimental. The interactions are termed purposeful interactions and incidental interactions. A classification of general inputs and outputs is presented. Different approaches for establishing purposeful interactions, especially during conceptual design are discussed in the paper. It is important to find and identify incidental interactions as early as possible during design. In this paper an approach for finding incidental interactions, estimating the consequence of them and describing the countermeasures to them is presented.

scholarly journals Development of the conceptual design of vehicles for off-road container transportation for mining applications

2021 ◽  
Vol 326 ◽  
pp. 00025
Author(s):  
Kirill Evseev ◽  
Boris Kositsyn ◽  
George Kotiev ◽  
Anton Stadukhin ◽  
Igor Smirnov
Keyword(s):  
Conceptual Design ◽  
Measuring Instruments ◽  
Technical Solution ◽  
Container Transportation ◽  
Mining Operations ◽  
Performance Properties ◽  
Tracked Vehicles

The article substantiates the relevance of off-road container transportation by ground railless transport vehicles and weight-size parameters of the transported cargo for the mining operations. A hierarchy of complex mobility properties is developed to investigate the significance of performance properties, which is divided into levels of properties. Taking into account the hierarchy of properties, the measuring instruments are determined, the indicators of which can be used to determine the priority technical solution for container and rock transportation vehicles. The article provides a classification of tracked vehicles and tracked trains with the analysis of their design and layout variants. As a result, variants of the concepts of vehicles for off-road container and rock transportation have been formed. Based on the analysis of the hierarchy of performance properties, design and layout variants of modern tracked vehicles and considering the selected objects of research, the conceptual design of a semi-trailer tracked train and a tracked train with a double-hinge fifth wheel coupling has been proposed.

scholarly journals On Directional Change and Anti-Windup Compensation in Multivariable Control Systems

2009 ◽  
Vol 19 (2) ◽  
pp. 281-289 ◽  
Author(s):  
Dariusz Horla
Keyword(s):  
Control Systems ◽  
Control Signal ◽  
Multivariable Control ◽  
Multivariable Systems ◽  
Constrained Control ◽  
New Classification ◽  
Multivariable Control Systems ◽  
Directional Change ◽  
Inputs And Outputs

On Directional Change and Anti-Windup Compensation in Multivariable Control SystemsThe paper presents a novel description of the interplay between the windup phenomenon and directional change in controls for multivariable systems (including plants with an uneven number of inputs and outputs), usually omitted in the literature. The paper also proposes a new classification of anti-windup compensators with respect to the method of generating the constrained control signal.

Discontinuities in Criminal Law

2021 ◽  
Vol 22 (1) ◽  
pp. 137-157
Author(s):  
Avlana K. Eisenberg
Keyword(s):  
Criminal Law ◽  
Drastic Change ◽  
Fine Tuning ◽  
Input Output ◽  
Theories Of Punishment ◽  
The Law ◽  
Inputs And Outputs

Abstract The law values fairness, proportionality, and predictability. Accordingly, in the context of criminal law, punishments should be carefully calibrated to reflect the harm caused by an offense and the culpability of the offender. Yet, while this would suggest the dominance of “smooth” input/output relationships—for example, such that a minuscule increase in culpability would result in a correspondingly small increase in punishment—in fact, the law is laden with “bumpy” input/output relationships. Indeed, a minuscule change in input (be it of harm, culpability, or any number of other measures) may result in a drastic change in output, creating significant discontinuities. Leading scholars have argued that smooth input/output relationships, which feature careful gradation and calibration, better accord with dominant theories of punishment than do bumpy relationships, which lack fine-tuning. Accepting as a starting premise that smooth input/ output relationships are to be preferred in the criminal law, this Article focuses on the significant doctrinal and practical impediments to smoothing out these relationships. This analysis reveals challenges to smoothing out relationships between inputs and outputs, as well as the difficulties associated with addressing discontinuous relationships among inputs and outputs. Specifically, it exposes the law’s classification of inputs and outputs itself as contestable and responsible for a range of hard-to-resolve discontinuities. In doing so, this Article begins the task of laying the groundwork for further analysis and possible reforms.

scholarly journals Conceptual Design of Schoenflies Motion Generators Based on the Wrench Graph

2013 ◽  
Author(s):  
Semaan Amine ◽  
Latifah Nurahmi ◽  
Philippe Wenger ◽  
Stéphane Caro
Keyword(s):  
Conceptual Design ◽  
Parallel Manipulator ◽  
Screw Theory ◽  
Parallel Manipulators ◽  
Design Stage ◽  
The Subject ◽  
Grassmann Geometry ◽  
Kinematic Singularities ◽  
General Configuration

The subject of this paper is about the conceptual design of parallel Schoenflies motion generators based on the wrench graph. By using screw theory and Grassmann geometry, some conditions on both the constraint and the actuation wrench systems are generated for the assembly of limbs of parallel Schoenflies motion generators, i.e., 3T1R parallel manipulators. Those conditions are somehow related to the kinematic singularities of the manipulators. Indeed, the parallel manipulator should not be in a constraint singularity in the starting configuration for a valid architecture, otherwise it cannot perform the required motion pattern. After satisfying the latter condition, the parallel manipulator should not be in an actuation singularity in a general configuration, otherwise the obtained parallel manipulator is permanently singular. Based on the assembly conditions, six types of wrench graphs are identified and correspond to six typical classes of 3T1R parallel manipulators. The geometric properties of these six classes are highlighted. A simplified expression of the superbracket decomposition is obtained for each class, which allows the determination and the comparison of the singularities of 3T1R parallel manipulators at their conceptual design stage. The methodology also provides new architectures of parallel Schoenflies motion generators based on the classification of wrench graphs and on their singularity conditions.

Research on Component Attributes in Domain Problem Solving

2011 ◽  
Vol 291-294 ◽  
pp. 2447-2451
Author(s):  
Chang Qing Gao ◽  
Huan Huan Su ◽  
Bo Yang ◽  
Bing Lv ◽  
Yu Zeng Wang
Keyword(s):  
Problem Solving ◽  
Conceptual Design ◽  
Design Process ◽  
Function Analysis ◽  
View Point ◽  
Function Model ◽  
Specific Solution

Function analysis is a key step during conceptual design process for function reasoning, which is also useful for the confirmation of conflict. And resolving conflict is regarded as the essence of invention in view point of TRIZ. Component attributes are the necessary information for a function model. The classification of the available resource and the component attributes is the base for searching specific solution for the domain problem. The methodology and application of component attributes in conceptual design are discussed in this paper.

scholarly journals Performance bookkeeping for aircraft configurations with fuselage wake-filling propulsion integration

2019 ◽  
Vol 11 (2) ◽  
pp. 529-551
Author(s):  
A. L. Habermann ◽  
J. Bijewitz ◽  
A. Seitz ◽  
M. Hornung
Keyword(s):  
Conceptual Design ◽  
Momentum Conservation ◽  
Design Analysis ◽  
High Fidelity ◽  
Figures Of Merit ◽  
Evaluation Scheme ◽  
Conceptual Design Phase ◽  
Integrated Performance ◽  
Aircraft Configurations

AbstractThe aim of this research is the identification of a unified bookkeeping and evaluation scheme for the integrated performance analysis of a boundary layer ingesting (BLI) concept in the conceptual design phase. A thorough review and classification of existing performance bookkeeping schemes suits as a basis for the derivation of a bookkeeping scheme suitable for the initial sizing as well as detailed design analysis during the conceptual phase of a BLI concept. Figures of merit for the concept performance assessment are evaluated with regard to the requirements of aircraft multidisciplinary conceptual design. Based on the survey, the most practical integral momentum conservation approach is deduced and its application to integrated conceptual sizing and a subsequent design analysis is evaluated. The proposed scheme is universally applicable to coupled airframe–propulsion aircraft concepts, compatible with standard aircraft and propulsion system sizing tools and, under certain assumptions, deployable for low- and high-fidelity evaluation methods. Finally, several figures of merit are selected to cover a range of design aspects in the BLI evaluation.

Effect and Effect Principle Modeling of Microcomponent

2011 ◽  
Vol 480-481 ◽  
pp. 1095-1098
Author(s):  
Xiang Tong Yan
Keyword(s):  
Conceptual Design ◽  
Design Solution ◽  
Formal Description ◽  
Effect Model ◽  
And Function ◽  
The Relationship

For the characteristic of cross-coupled multi-disciplinary research of microcomponent effect plays an important role in the MEMS system. The combination of different effects has the different component principle, then forms the different functional device, completes the different functions. Effect and effect principle modeling of microcomponent in conceptual design for microcomponent are introduced. The effect classification of microcomponent, formal description of effect, the relationship between effect and principle and function decomposing and the mapping between effect and function are described, and the effect model for microcomponent is established. The model is the basis of microcomponent conceptual design solution.

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