Forthcoming and Online First Articles

International Journal of Engineering Systems Modelling and Simulation

International Journal of Engineering Systems Modelling and Simulation (IJESMS)

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International Journal of Engineering Systems Modelling and Simulation (8 papers in press)

Regular Issues

  • Mathematical Modelling for Prediction of Mechanical properties of Abutilon Indicum fibre reinforced composite using RSM and ANN   Order a copy of this article
    by Doni Mohana Krishnudu, D. Sreeramulu, P. Venkateshwar Reddy 
    Abstract: Major application areas of natural fiber composites are found in packing industries. The focus of the present study is on natural fibre (abutilon indicum) reinforcement composite materials with filler and to predict their mechanical properties of Abutilon Indicum fibre reinforced composites. In the present study fiber content (wt.%) and filler content (wt.%) are taken as the influencing parameters and mechanical properties like tensile, impact and flexural strengths are taken as an output parameter. Various proportions of fiber content and filler content were designed as per L25 orthogonal array and their mechanical properties were found. A regression equation was developed using RSM for each mechanical property in terms of fiber weight and filler weight. Mathematical models are developed by using both RSM and ANN and predictive capability of these two techniques were compared based on its R2 values. From the R2 values it is confirmed that the predictive capability of ANN model is higher than the RSM model for the present study.
    Keywords: Abutilon Indicum; Mechanical Properties; RSM; ANN.

  • Finite-element modelling of magnetic fields for superconducting magnets with magnetic vector and total scalar potentials using COMSOL Multiphysics   Order a copy of this article
    by Alexander Chervyakov 
    Abstract: The finite-element modelling of superconducting magnets is a resource-hungry and challenging work. For these devices, the high-quality requirements for focusing fields are usually superimposed by complexity of the model geometries and nonlinearity of the magnetic materials. The precise field simulations could result therefore in substantial number of the degrees of freedom and, as a consequence, in significant usage of the computational resources. To achieve the acceptable accuracy with lower number of finite elements, the magnetic field distributions are calculated in terms of the magnetic vector potential (A-formulation) as well as the total scalar potential (V-formulation) with COMSOL Multiphysics and compared. For these calculations, we utilise the model of a superconducting dipole magnet recently designed for operation of the compact isochronous cyclotron SC200. The performance of the both methods is analysed in terms of accuracy and quality of the obtained fields as well as in terms of the computational cost.
    Keywords: compact cyclotrons; superconducting magnets; magnetic fields; finite-element method.
    DOI: 10.1504/IJESMS.2021.10039001
     

Special Issue on: Artificial Intelligence-enabled Computing System Development

  • Load cell-based PID method controlled Segway system modelling and simulation   Order a copy of this article
    by Muhammed Mustafa Kelek, Ugur Fidan, Yuksel Oguz, Ibrahim Celik, Tolga Ozer 
    Abstract: In the present study, mathematical modelling and simulation of load cell-based Segway has been done. Four load cells placed on the Segway to provide the control of the system. According to the measured weight information, the dynamic model of the system can be updated instantly. This operation makes the Segway control easier by changing the maximum pitch angle. In order for the system to stay in balance on two wheels, it must move at the appropriate pitching angle and at the desired speed. The control of the suitable pitching angle and speed are controlled by the PID method. As a result of the simulation in Matlab/Simulink environment, Segways speed information, current information of BLDC and pitching angle can be accessed. As a result of the study, it is thought that the load cell-based Segway can be controlled more effectively.
    Keywords: Segway; mathematical modelling; load cell; proportional; integral and derivative; PID; electric vehicle.
    DOI: 10.1504/IJESMS.2021.10037376
     
  • Analysing chickpea physical characteristics emphasising on count, shape and size using computer vision   Order a copy of this article
    by Ajay Khatri, Shweta Agrawal 
    Abstract: Chickpeas are the food supplements which are very rich in protein, fibre and minerals. This grain affects a large percentage of Indian economy and India has the largest production and consumption of these grains. The most important quality attribute of chickpeas are size of seed, colour and taste. Based on these quality attributes chickpeas are graded into three main grades 78 mm, 89 mm, 9 mm and above. Determining seed size through sieve analysis in legumes is labour dependent, time consuming and inaccurate method. In general quality assessment of desi chickpea is done by visual inspection of small samples from the lot which is a slow and inaccurate process. The paper proposes a computer vision-based algorithm to assess the quality of chickpea on the basis of their shape, size and count. Experiment is performed for 20 sample images the results present that accuracy achieved through proposed algorithm for width calculation is 97.4%, for height calculation is 98.14%, for aspect ratio accuracy achieved is 97.3% and for chickpea count accuracy achieved is 98.6%. The proposed algorithm used concept of reference object to overcome the problem of dependency on distance of object and camera while capturing the image.
    Keywords: computer vision; chickpea; image processing; grain analysis; accuracy.
    DOI: 10.1504/IJESMS.2021.10038764
     
  • Prediction of Euclidean distance between existing and target product for software product line testing using FeatureIDE   Order a copy of this article
    by Ashish Saini, Raj Kumar, Satendra Kumar, Mohit Mittal 
    Abstract: Software product line (SPL) is a paradigm that consists a family of products, all these products have some common features. SPL contains enormous products due to variable features, to test all of them is unfeasible. For this reason, several methods have been introduced to test the product line. These methods are used to prioritise products because they are based on feature interaction and do not provide information regarding products validity. To check the validity of products, we introduce a method based on Euclidean distance, which verifies the product based on the calculated distance between the real and desired product features. In addition, we compare the proposed method with the existing interaction-based method for product lines of different sizes. The results show that the proposed method takes less time to test the effectiveness of the product and increases the impact of the method in terms of time.
    Keywords: software product line; SPL; feature model; software product line testing; testing; software product line engineering.
    DOI: 10.1504/IJESMS.2021.10038986
     
  • High speed energy efficient multiplier for signal processing   Order a copy of this article
    by S. Karthick, C. Kamalanathan, P. Sunita, S. Ananthakumaran, E. Prabhu 
    Abstract: In digital signal processors, computation intensive arithmetic functions such as image smoothing, convolution and filtering frequently involve multiplication-based operations like inner-product generation and accumulation. Multiplication time is the predominate element in determining the execution time of any digital signal processing chip. Switching activity of the functional units in the multiplier contributes to significant amount of power dissipation. This paper presents high speed energy efficient multiplier. By reducing the switching activity and number of computations, the proposed multiplier achieves a better performance in terms of delay and PDP. The proposed high speed energy efficient multiplier is designed using Verilog-HDL and synthesised using Cadence RTL compiler with respect to 180 nm and 90 nm technological libraries. The proposed multiplier shows the delay reduction of 8.95% to 31.40%. The potential benefit of reducing the delay realises a PDP reduction of 13.66% to 26.95%. The performance of the proposed multiplier is verified by implementing it in 16 tap 16-bit coefficient band pass finite impulse response filter. The multiplier used here can be used in signal processing application to obtain energy efficient hardware.
    Keywords: energy efficient; high speed; switching activity.
    DOI: 10.1504/IJESMS.2021.10039531
     
  • Real time prediction of solar radiation of Indore region using machine learning algorithms   Order a copy of this article
    by Sanjiv Kumar Jain, Kaustubh Yawalkar, Prakhar Singh, Advait Apte 
    Abstract: The most crucial data requirement for all solar energy researches is solar radiation. As solar radiation is the quantity which is dependent on time, the desired power output of any solar power plant is also dependent on time. The objective of this paper is to utilise machine learning models to estimate the solar radiations on daily data of Indore region (22.7196 N, 75.8577 E). The speed of wind, temperature, pressure, humidity along with solar radiation are used and applied in the process of prediction. The evaluation of the model is done in terms of prediction efficiency. In the work, boosted decision tree algorithm is used for the solar radiation prediction, which gives an accuracy of 96.9%. Also, the multiple linear regression algorithm is utilised in the work for the real time estimation of hourly solar radiations. The method gives an accuracy of 91.8%.
    Keywords: solar radiation; linear regression; boosted decision tree; machine learning.
    DOI: 10.1504/IJESMS.2021.10039532
     
  • An empirical study on user buying behaviour in fashion industry using logistic regression   Order a copy of this article
    by Shaifali Chauhan, Richa Banerjee, Mohit Mittal, Sher Singh Bhakar 
    Abstract: The potential growth in technology is very high from past two decades. Due to this, every field of life is connected to internet. Nowadays, millions of people use internet and do shopping online. The fashion industry has opened new gates for online users by providing various offers. In this paper, a model is proposed for analysing impulse buying (IB) towards apparels based on consumers'; shopping behaviour. The data of 569 responses is collected and evaluated by using partial least square-structural equation modelling framework. Further, for analysing and identification of exact parameters that is highly important which affect user buying behaviour has used statistical approaches such as logistic regression. Based on results, hedonic and positive emotions (PE) have a significant impact on impulse buying, whereas involvement and sales promotion have an insignificant relationship.
    Keywords: buying behaviour; logistic regression; support vector machine; fashion apparels.
    DOI: 10.1504/IJESMS.2021.10039862