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Full-Text Articles in Engineering
An Elasto-Plastic Model For Liquefiable Sands Subjected To Torsional Shear Loadings, Gabriele Chiaro, Junichi Koseki, Nalin L. I De Silva
An Elasto-Plastic Model For Liquefiable Sands Subjected To Torsional Shear Loadings, Gabriele Chiaro, Junichi Koseki, Nalin L. I De Silva
Faculty of Engineering - Papers (Archive)
This paper presents a modeling procedure for simulating the monotonic undrained torsional shear behavior of sands, including stress-strain relationship, and excess pore water pressure generation, while considering the void ratio and stress level dependence of stress-strain-dilatancy behavior of sand. A unique set of soil parameters is required by the model to satisfactorily predict the undrained behavior of loose and dense Toyoura sand over a wide range of initial void ratios and confining pressures, as proven by simulating experimental data produced by the authors and found in the literature.
Indoor Localisation Using A Context-Aware Dynamic Position Tracking Model, Montserrat Ros, Joshua Boom, Gavin De Hosson, Matthew D'Souza
Indoor Localisation Using A Context-Aware Dynamic Position Tracking Model, Montserrat Ros, Joshua Boom, Gavin De Hosson, Matthew D'Souza
Faculty of Engineering - Papers (Archive)
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Indoor wireless localisation is a widely sought feature for use in logistics, health, and social networking applications. Low-powered localisation will become important for the next generation of pervasive media applications that operate on mobile platforms. We present an inexpensive and robust context-aware tracking system that can track the position of users in an indoor environment, using a wireless smart meter network. Our context-aware tracking system combines wireless trilateration with a …
Shear Strength Model For Sediment-Infilled Rock Discontinuities And Field Applications, Buddhima Indraratna, Wuditha N. Premadasa, Jan Anton Nemcik, Mylvaganam Jayanathan
Shear Strength Model For Sediment-Infilled Rock Discontinuities And Field Applications, Buddhima Indraratna, Wuditha N. Premadasa, Jan Anton Nemcik, Mylvaganam Jayanathan
Faculty of Engineering - Papers (Archive)
Discontinuities have a great influence on the reduction of rock mass shear strength depending on the geometry, roughness and the nature of infill sediments. These discontinuities are generally filled with different types of sediments. When the infill sediments are saturated, they make a considerable impact on the overall strength of the rock mass. Most infilled discontinuities in the field are overconsolidated due to various factors such as climatic and weathering conditions, as well as hydrothermal alteration. The increase in the thickness of joint infill subdues the otherwise prominent role of joint roughness. This paper presents some of the existing mathematical …
A Novel Model To Measure Supplier Performance In The Supplier Selection Process, Alptekin Ulutas, Senevi Kiridena, Peter Gibson
A Novel Model To Measure Supplier Performance In The Supplier Selection Process, Alptekin Ulutas, Senevi Kiridena, Peter Gibson
Faculty of Engineering - Papers (Archive)
Supplier evaluation has become a significant topic over the past decades, as companies have started to become more outsourced oriented. However, previous research on this topic has not paid adequate attention to the limitations associated with availability of accurate and reliable data relating to the performance of potential suppliers. In an attempt to address this issue, this paper proposes a novel supplier evaluation model that can handle imprecise quantitative and qualitative data. Additionally, Decision Maker’s opinions regarding both qualitative and quantitative criteria are incorporated into this model so that a more comprehensive and realistic assessment of supplier performance can be …
Introduction To The Sydney Soil Model, Martin D. Liu, John P. Carter, David W. Airey
Introduction To The Sydney Soil Model, Martin D. Liu, John P. Carter, David W. Airey
Faculty of Engineering - Papers (Archive)
In this paper a new constitutive model recently suggested by the authors, referred to as the Sydney Soil model, is introduced. The Sydney Soil Model is formulated within the framework of Critical State Soil Mechanics and is suitable for describing the behaviour of structured soils including both clays and sands. In the proposed model, the mechanical behaviour of soil is divided into two parts, that at a reference state and that attributed to the influence of soil structure. The reference state behaviour is formulated according to the soil properties at the critical state of deformation, based on the concept of …
Application Of Centroidal Voronoi Diagram In Numerical Model Of Microforming Process, Hai Na Lu, Dong Bin Wei, Zheng Yi Jiang
Application Of Centroidal Voronoi Diagram In Numerical Model Of Microforming Process, Hai Na Lu, Dong Bin Wei, Zheng Yi Jiang
Faculty of Engineering - Papers (Archive)
Grain size, shape and orientation play an important role on the deformability of micro workpiece as the geometrical dimensions approach to a characteristic scale in micro-forming process. This paper addresses the three-dimensional (3D) finite element (FE) model with weighed centroidal voronoi diagram (WCVD). Steady-state grains are generated when the voronoi generating points approach the grain centroid utilising a simplex integration algorithm. As a result of the centroidal process, the topological features of grains advance the uniform and steady state gradually, which may cause a decrease of interfacial energy. The grain size distribution is compared between the 3D domain and random …
A Validated Thermal Model Of Bead-On-Plate Welding, Djarot Darmadi, A K. Tieu, John Norrish
A Validated Thermal Model Of Bead-On-Plate Welding, Djarot Darmadi, A K. Tieu, John Norrish
Faculty of Engineering - Papers (Archive)
In this paper, finite element model is used to carry out thermal analysis of bead-on-plate welding. The model followed the proposed five step strategies which were then built into a model to obtain temperature history at the positions of thermocouples. Temperature field was also evaluated by comparing predicted weld bead with the actual weld bead. Using these proposed strategies, well matched temperature histories and temperature field have been obtained.
Soac-Net: A Model To Manage Service-Based Business Process Authorization, Haiyang Sun, Jian Yang, Weiliang Zhao, Sanjay K. Nepal
Soac-Net: A Model To Manage Service-Based Business Process Authorization, Haiyang Sun, Jian Yang, Weiliang Zhao, Sanjay K. Nepal
Faculty of Engineering - Papers (Archive)
Business process (BP) can be supported by a large number of resources with evolving contents. In order to receive the support from these resources, the BP must satisfy the authorization policies of these resources. On the other hand, a BP also has its own authorization policies that users must satisfy in order to interact with the BP. Meanwhile, execution policies need to be applied to manage the sequence of tasks invocations in a BP. Therefore, without proper coordination among these policies, BP may not be able to perform correctly, e.g., imperative support from a specific resource could be missing or …
Stress-Strain Model For Concrete Under Cyclic Loading, Farhad Aslani, Raha Jowkarmeimandi
Stress-Strain Model For Concrete Under Cyclic Loading, Farhad Aslani, Raha Jowkarmeimandi
Faculty of Engineering - Papers (Archive)
A hysteretic stress-strain model is developed for unconfined concrete with the intention of providing efficient modelling for the structural behaviour of concrete in seismic regions. The proposed model is based on the findings of previous experimental and analytical studies. The model for concrete subjected to monotonic and cyclic loading comprises four components in compression and tension - an envelope curve (for monotonic and cyclic loading), an unloading curve, a reloading curve and a transition curve. Formulations for partial unloading and partial reloading curves are also presented. The reliability of the proposed constitutive model is investigated for a reinforced concrete member …
Comprehensive Model Of Oxygen Steelmaking Part 3: Decarburization In Impact Zone, Neslihan Dogan, Geoffrey A. Brooks, Akbar Rhamdhani
Comprehensive Model Of Oxygen Steelmaking Part 3: Decarburization In Impact Zone, Neslihan Dogan, Geoffrey A. Brooks, Akbar Rhamdhani
Faculty of Engineering - Papers (Archive)
The development of a global model for oxygen steelmaking and its validation against industrial data has been reported in Part 1 of this paper. Part 2 of this paper explained the model development of decarburization reaction of emulsified droplets and discussed the effects of bloating behaviour of metal droplets on the overall kinetics of the process. Part 3 of this paper focussed on the development of one sub-model on the decarburization reaction in the impact zone and critically evaluates the important process variables affecting the decarburization kinetics. Decarburization rates in the impact zone were calculated using the semi-empirical relationships developed …
An Elasto-Plastic Model To Describe The Undrained Cyclic Behavior Of Saturated Sand With Initial Static Shear, G Chiaro, L.I.N. De Silva, T Kiyota, J Koseki
An Elasto-Plastic Model To Describe The Undrained Cyclic Behavior Of Saturated Sand With Initial Static Shear, G Chiaro, L.I.N. De Silva, T Kiyota, J Koseki
Faculty of Engineering - Papers (Archive)
With the aim of simulating the behavior of saturated sand with initial static shear (i.e., sloped ground) undergoing undrained cyclic loading, which leads to liquefaction and large cyclic shear strain development, an elasto-plastic constitutive model which can describe both monotonic and cyclic torsional shear behaviors of saturated sand under drained and/or undrained conditions is presented. It can simulate qualitatively the stress-strain relationship and the effective stress path, even after the specimen enters fully liquefied state. To verify its effectiveness, the proposed model is employed to simulate the results of a series of hollow-cylindrical torsional shear tests on loose Toyoura sand …
Comprehensive Model Of Oxygen Steelmaking Part 1: Model Development And Validation, Neslihan Dogan, Geoffrey A. Brooks, Akbar Rhamdhani
Comprehensive Model Of Oxygen Steelmaking Part 1: Model Development And Validation, Neslihan Dogan, Geoffrey A. Brooks, Akbar Rhamdhani
Faculty of Engineering - Papers (Archive)
A comprehensive model of oxygen steelmaking that includes the kinetics of scrap melting, flux dissolution, slag chemistry, temperature profile of the system, formation and residence of metal droplets in the emulsion, and kinetics of decarburization reaction in different reaction zones was developed. This paper discussed the development and the application of the model into an industrial practice. The results from the model were consistent with the plant data from the study of Cicutti et al. The model suggested that 45% of the total carbon was removed via emulsified metal droplets and the remaining was removed from the impact zone during …
Comprehensive Model Of Oxygen Steelmaking Part 2: Application Of Bloated Droplet Theory For Decarburization In Emulsion Zone, Neslihan Dogan, Geoffrey A. Brooks, Akbar Rhamdhani
Comprehensive Model Of Oxygen Steelmaking Part 2: Application Of Bloated Droplet Theory For Decarburization In Emulsion Zone, Neslihan Dogan, Geoffrey A. Brooks, Akbar Rhamdhani
Faculty of Engineering - Papers (Archive)
The development of a global model for oxygen steelmaking and its validation against industrial data was reported in Part 1 of this paper. This paper focused on the development of one sub-model on the decarburization reaction in the emulsion zone incorporating the bloated droplet theory. This paper also critically evaluated the current knowledge on the kinetics of decarburization reaction in the emulsion phase and discussed the repercussions of the new model for industrial practices. The decarburization model, in conjunction with the industrial data, indicates that the decarburization rates in the emulsion phase reaches up to approximately 60% of the overall …
A Conceptual Model For Lignosulfonate Treated Soils, Jayan S. Vinod, Buddhima Indraratna
A Conceptual Model For Lignosulfonate Treated Soils, Jayan S. Vinod, Buddhima Indraratna
Faculty of Engineering - Papers (Archive)
This paper describes an anisotropic elastoplastic based constitutive model for describing the behaviour of lignosulfonate stabilized soils. The proposed model is an extension of the earlier model developed by Dafalias (1987). The theoretical formulations of the current model were based on the frame work of critical state concept. The novel feature of this model is the incorporation of a material constant b, which takes into account of the degree of cementation. It is demonstrated that the model can capture the behaviour of lignosulfonate treated soil.
Mechanical Model Of A Floating Oscillating Water Column Wave Energy Conversion Device, Brad Stappenbelt, Paul Cooper
Mechanical Model Of A Floating Oscillating Water Column Wave Energy Conversion Device, Brad Stappenbelt, Paul Cooper
Faculty of Engineering - Papers (Archive)
The study of floating oscillating water column (OWC) wave energy conversion (WEC) device performance includes analysis of the dynamic coupling of the water column and the floating structure. In the present investigation, a mechanical oscillator model was proposed in order to examine this relationship for the heave motion of a floating wave energy conversion device. Characterisation of the dynamic system optimal behaviour was performed by examining the effect of relative OWC and floating structure natural frequencies, the phase relationships of the various system components and the optimal power take-off damping of the system. It was determined that separation of the …
Development Of A Comprehensive Model For Oxygen Steelmaking, Neslihan Dogan, Geoffrey A. Brooks, Muhammad A. Rhamdhani
Development Of A Comprehensive Model For Oxygen Steelmaking, Neslihan Dogan, Geoffrey A. Brooks, Muhammad A. Rhamdhani
Faculty of Engineering - Papers (Archive)
One of the main goals in oxygen steelmaking process is to reduce the carbon concentration of the liquid iron effectively. It is understood that the majority of the carbon removal reaction occurs in the emulsion phase via the reaction between metal droplets and the slag phase. An improved understanding of this reaction and the factors controlling the overall rate should provide better control of the process and increase the productivity. In the literature, there is limited knowledge on how to relate the carbon removal rate within the droplets to the overall kinetics of the process under full scale operating conditions. …
Soac: A Conceptual Model For Managing Service-Oriented Authorization, Haiyang Sun, Weiliang Zhao, Jian Yang
Soac: A Conceptual Model For Managing Service-Oriented Authorization, Haiyang Sun, Weiliang Zhao, Jian Yang
Faculty of Engineering - Papers (Archive)
A web service can be composed of multiple component web services in a loosely-coupled environment. Traditional Role Based Access Control (RBAC) is inadequate for the authorization management of composite services since the administration of the component web services has not been taken into consideration. In this paper, we propose a novel conceptual model, named as Service Oriented Authorization Control (SOAC) to facilitate the administration and management for both service consumers and component web services. A set of administrative functions are also provided for managing the elements of SOAC. This research will be the first step towards managing service-oriented authorization.
A Trust And Reputation Model Based On Bayesian Network For Web Services, Hien Trang Nguyen, Weiliang Zhao, Jian Yang
A Trust And Reputation Model Based On Bayesian Network For Web Services, Hien Trang Nguyen, Weiliang Zhao, Jian Yang
Faculty of Engineering - Papers (Archive)
Trust and reputation for web services emerges as an important research issue in web service selection. Current web service trust models either do not integrate different important sources of trust (subjective and objective for example), or do not focus on satisfying different user’s requirements about different quality of service (QoS) attributes such as performance, availability etc. In this paper, we propose a Bayesian network trust and reputation model for web services that can overcome such limitations by considering several factors when assessing web services’ trust: direct opinion from the truster, user rating (subjective view) and QoS monitoring information (objective view). …
Ride Performance Analysis Of Half-Car Model For Semi-Active System Using Rms As Performance Criteria, Sany Ihsan, Mehdi Ahmadian, Waleed Faris, Emmanuel D. Blanchard
Ride Performance Analysis Of Half-Car Model For Semi-Active System Using Rms As Performance Criteria, Sany Ihsan, Mehdi Ahmadian, Waleed Faris, Emmanuel D. Blanchard
Faculty of Engineering - Papers (Archive)
The work aims to study the root mean square (RMS) responses to acceleration input for four state variables: the mS vertical acceleration, the mS pitch angular acceleration and the front and rear deflections of the suspensions. A half-car two degree-of-freedom model of semi-active control scheme is analyzed and compared with the conventional passive suspension system. Frequency response of the transfer function for the heave, pitch of the sprung mass and suspension deflections are initially compared and then mean square analysis is utilized to see the effect of semi-active scheme. Results indicate that significant improvements were achieved in the …
A Comparative Study On Field, Temperature, And Strain Dependences Of The Critical Current For Doped And Undoped Mgb2 Wires Based On The Percolation Model, Sangjun Oh, Jung Ho Kim, Kyuhwan Cho, Chulhee Lee, Chan-Joong Kim, S. X. Dou, M Rindfleisch, Mike Tomsic, Jung-Ho Ahn
A Comparative Study On Field, Temperature, And Strain Dependences Of The Critical Current For Doped And Undoped Mgb2 Wires Based On The Percolation Model, Sangjun Oh, Jung Ho Kim, Kyuhwan Cho, Chulhee Lee, Chan-Joong Kim, S. X. Dou, M Rindfleisch, Mike Tomsic, Jung-Ho Ahn
Faculty of Engineering - Papers (Archive)
Field, temperature, and strain dependences of the critical current for a SiC doped multifilamentary in situ MgB2 wire have been studied. Measurement results were compared with that of the undoped wire, and the origin of the difference in the critical current is discussed. The critical current can be calculated with the percolation model considering the effect of anisotropy. The temperature dependence of the fitting parameters, the upper critical field along the ab-plane, and c-axis is compared with the dirty-limit two-gap theory. To assess the validity of the fitting parameters, resistive transition has been measured especially to …
Mixture Model Segmentation For Gait Recognition, Matthew Field, David A. Stirling, Fazel Naghdy, Zengxi Pan
Mixture Model Segmentation For Gait Recognition, Matthew Field, David A. Stirling, Fazel Naghdy, Zengxi Pan
Faculty of Engineering - Papers (Archive)
Modeling of human motion through a discrete sequence of motion primitives, retaining elements of skillful or unique motion of an individual is addressed. Using wireless inertial motion sensors, a skeletal model of the fluid human gait was gathered. The posture of the human model is described by sets of Euler angles for each sample. An intrinsic classification algorithm known as minimum message length encoding (MML) is deployed to segment the stream of data and subsequently formulate certain Gaussian mixture models (GMM) that contain a plausible range of motion primitives. The removal of certain less seemingly important modes has been shown …
An Effective Permeability Model To Predict Field-Dependent Modulus Of Magnetorheological Elastomers, X. Z. Zhang, W.H. Liu, Kosasih, X.C. Zhang, X.L Gong, Q.P. Zhang
An Effective Permeability Model To Predict Field-Dependent Modulus Of Magnetorheological Elastomers, X. Z. Zhang, W.H. Liu, Kosasih, X.C. Zhang, X.L Gong, Q.P. Zhang
Faculty of Engineering - Papers (Archive)
Magnetorheological elastomers (MREs) are composites where magnetic particles are suspended in a non-magnetic solid or a gel-like matrix. MREs are shown to have a controllable, field-dependent shear modulus. Most of conventional MREs models are based on magnetic dipole interactions between two adjacent particles of the chain. These models can predict the field-dependent properties of MREs with simple chain-like structures. In this paper, an effective permeability model is proposed to predict the field-induced modulus of MREs. Based on the effective permeability rule and taking into account the particle’s saturation, the model is proposed to predict the mechanical performances of MREs with …
Fault Diagnosis In Multi-Station Assembly Systems Using An Agent-Based Simulation Model, Nagesh Shukla, Manoj Tiwari, Darek Ceglarek
Fault Diagnosis In Multi-Station Assembly Systems Using An Agent-Based Simulation Model, Nagesh Shukla, Manoj Tiwari, Darek Ceglarek
Faculty of Engineering - Papers (Archive)
Today’s automotive industries require quick ramp-up in order to shorten the time to market and fulfill greater demand for product variety. Since, dimensional tolerance problems are one of the main causes for delay during ramp-up in multi-station assembly systems; hence, rapid diagnosis of faults contributing to dimensional errors is of significant concern. This paper presents an agent-based simulation model (ABSM) which integrates model-based and data-based diagnostics for fault diagnosis and correction in multi-station assembly processes. The fault causing variation sources, their effects on dimensional accuracy, diagnosis from sensors data and corrective actions in multi-station assembly systems are simulated using proposed …
Mathematical Model To Predict Solids Content Of Water Treatment Residuals During Drying, Ali Gharaibeh, Muttucumaru Sivakumar, Dharmappa Hagare
Mathematical Model To Predict Solids Content Of Water Treatment Residuals During Drying, Ali Gharaibeh, Muttucumaru Sivakumar, Dharmappa Hagare
Faculty of Engineering - Papers (Archive)
Dewatering and drying of residuals are extremely energy intensive processes, which are necessary to reduce the quantity of wet residuals produced from the water and wastewater treatment operations. Meteorological conditions are a major factor in the drying of residuals, which can greatly affect the drying period. A mathematical model is developed for the process of drying of water treatment residuals. A steady-state heat-balance equation is applied for a control volume of residuals that takes into account the heat transfer by radiation, convection, and evaporation. The mathematical model was validated using drying experiments conducted in a wind tunnel as well as …
Discrete Cosine Transform Based Shift Estimation For Fringe Pattern Profilometry Using Generalized Analysis Model, Jose F. Chicharo, Jiangtao Xi, Yingsong Hu, Zongkai Yang, Enbang Li
Discrete Cosine Transform Based Shift Estimation For Fringe Pattern Profilometry Using Generalized Analysis Model, Jose F. Chicharo, Jiangtao Xi, Yingsong Hu, Zongkai Yang, Enbang Li
Faculty of Engineering - Papers (Archive)
This paper presents a new analysis algorithm to carry out profile measure- ment with low computational complexity and less noise-sensitivity. Firstly, a discrete cosine transform (DCT) based representation method is introduced to express the height distribution of the three-dimensional surface. Then, a novel shift estimation algorithm, called DCT based shift estimation (DCT-SE) is presented to reconstruct three-dimensional object surfaces by using the proposed expression and the generalized analysis model. The advantage of DCT-SE is that without loss of measurement precise it provides lower computational complexity to implement three-dimensional reconstruction from distorted fringe patterns and at the same time survives from …
A Microslip Model Of The Bonding Process In Ultrasonic Wire Bonders Part I: Transient Response, C M. Hu, N Guo, H Du, W H. Li, M Chen
A Microslip Model Of The Bonding Process In Ultrasonic Wire Bonders Part I: Transient Response, C M. Hu, N Guo, H Du, W H. Li, M Chen
Faculty of Engineering - Papers (Archive)
Ultrasonic wire bonders with precision capillary tips are widely used for bonding electrical wires to IC chips and circuits. The industry is driving wire-bonding technology towards increased yields, decreased pitch, and ever decreasing cost. However, many technical and material issues will be involved in achieving these goals, such as bond quality monitoring, new failure modes, reliability problems in new plastic mold compounds, and increasing wire sweep problems, in particular lack of the quantitative understanding and validated mathematical model of the bonding process. In this paper, a microslip model is proposed for the bonding process based on the bonding pattern observed, …
Dynamic Model Simplification Of Serial Manipulators, Subir Kumar Saha, Bijan Shirinzadeh, Gursel Alici
Dynamic Model Simplification Of Serial Manipulators, Subir Kumar Saha, Bijan Shirinzadeh, Gursel Alici
Faculty of Engineering - Papers (Archive)
Simplicity in the dynamics model of a serial robot manipulator greatly enhances the speed of its control and the associated hardware implementation. Since the motion of one link influences the torque or force required at the other joints, the control becomes difficult. This is referred as dynamic coupling. In this paper, it is proposed to simplify the robot's dynamic coupling by suitably choosing the manipulator’s kinematic and dynamic parameters. The intention is to make the Generalized Inertia Matrix (GIM) of the serial manipulator associated with its dynamic equations of motion diagonal and/or constant. Such choice automatically ensures the associated convective …
A New Model For Thermal Conductivity In Nanofluids, Pei Tillman, James M. Hill
A New Model For Thermal Conductivity In Nanofluids, Pei Tillman, James M. Hill
Faculty of Engineering - Papers (Archive)
Nanofluids exhibit enhanced thermal conductivity superior to traditional heat transfer fluids. The conventional theoretical models cannot explain the large enhancement of the thermal conductivity of nanofluids. It has been proposed that an interfacial structure formed by liquid molecular layering might play an important role. To date there is no known procedure to properly calculate the nanolayer thickness, and all previous investigators arbitrarily adopt a layer thickness which is consistent with experimental results. Here we investigate the thermal conductivity structure of this interfacial layer and its impact on the effective thermal conductivity and an expression for the thermal conductivity profile in …
Developing And Using Landslide Size Frequency Models, A. T. Moon, R. A. Wilson, P. Flentje
Developing And Using Landslide Size Frequency Models, A. T. Moon, R. A. Wilson, P. Flentje
Faculty of Engineering - Papers (Archive)
Predicting the size and frequency of landslides is essential in landslide risk assessment. Records of past landslides are invariably incomplete and often provide little guidance on infrequent events. Presenting size frequency models graphically has the advantage of showing how observations, interpretations and judgements are interrelated, allows patterns to be recognized and understood, and models for different situations to be easily compared. Slope retreat rates were used to calibrate landslide size frequency models for individual slope units on an oversteepened escarpment above a road threatened by landslides in Australia. Evidence based models should be developed early and should be based on …
A Deformable Model With Cellular Neural Network, Yongmin Zhong, Bijan Shirinzadeh, Gursel Alici, Julian Smith
A Deformable Model With Cellular Neural Network, Yongmin Zhong, Bijan Shirinzadeh, Gursel Alici, Julian Smith
Faculty of Engineering - Papers (Archive)
This paper presents a new methodology for deformable models by drawing an analogy between cellular neural network (CNN) and elastic deformation. The potential energy stored in an elastic body as a result of a deformation caused by an external force is propagated among mass points by the local connectivity of cells and the CNN dynamics. An improved CNN model is developed for propagating the energy generated by the external force on the object surface. A method is presented to derive the internal forces from the potential energy distribution established by the CNN. The methodology proposed in this paper can not …