Journal ArticleDOI
Wavelet feature parameters representations of open planar curves
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TLDR
In this paper, the use of Haar wavelets to describe open planar curves is presented, and the geometric significance of a wavelet approximation and wavelet detail for open curves in the complex plane are given by analyzing the internal relationship of the wavelet details.About:
This article is published in Applied Mathematical Modelling.The article was published on 2017-05-01. It has received 6 citations till now. The article focuses on the topics: Discrete wavelet transform & Wavelet.read more
Citations
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Journal ArticleDOI
Synthesis of spherical four-bar linkage for open path generation using wavelet feature parameters
TL;DR: The design results show that the proposed wavelet feature parameters method is effective for the open path generation of spherical four-bar linkages.
Journal ArticleDOI
Kinematics of coupler curves for spherical four-bar linkages based on new spherical adjoint approach
Wei Wang,Huang Lifeng,Dahai Liao +2 more
TL;DR: In this article, a unified spherical adjoint approach is established to study both the local and global geometric properties in order to enrich the atlas of spherical coupler curves with geometric characteristics, which can be adopted to reveal distribution characteristics of spherical Coupler curves.
Journal ArticleDOI
Hybrid Optimization Based Mathematical Procedure for Dimensional Synthesis of Slider-Crank Linkage
TL;DR: Several illustrative examples will prove the validity of the proposed optimization methodology, in some cases achieving an even better result compared to mechanisms with a higher number of dimensional parameters, such as the four-bar mechanism or the Watt’s mechanism.
Proceedings ArticleDOI
On the Solution of Multi-Precision-Point Path Synthesis of Planar Four-Bar Mechanisms Based on Solution Region Methodology
Jianyou Han,Wupeng Liu +1 more
TL;DR: The solution region synthesis method is to represent an infinite number of mechanism solutions in a plane, in which the x-coordinate and the y-coordinated of the plane are both taken as the concerned parameters of the mechanisms.
Proceedings ArticleDOI
Segmented Spectrum Energy Characteristics-based Density Clustering of Partial Discharge Signals
TL;DR: A feature extraction method based on the signal spectrum was proposed, and the DBSCAN density clustering algorithm was used to process the discharge signals, which can classify the discharge signal automatically and effectively so that a large number of pulse signals can be screened and identified efficiently and quickly.
References
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Journal ArticleDOI
Rapid search and selection of path generating mechanisms from a library
TL;DR: In this paper, the coupler curve of any mechanism may be stored as a series of coefficients independent of mechanism type, and a process of normalization can be applied to the coefficients.
Journal ArticleDOI
Review of wavelet methods for the solution of reaction–diffusion problems in science and engineering
G. Hariharan,K. Kannan +1 more
TL;DR: It is shown that the wavelet method is efficient and powerful in solving wide class of linear and nonlinear reaction–diffusion equations and future scope and directions involved in developing wavelet algorithm for solving reaction– Diffusion equations are addressed.
Journal ArticleDOI
A computational method for solving optimal control and parameter estimation of linear systems using Haar wavelets
TL;DR: It is shown that parameter estimation of linear system can be done easily using the idea proposed and the results of the article, which include the time information, are illustrated in two examples.
Journal ArticleDOI
Harmonic representation of closed curves
J. R. McGarva,Glen Mullineux +1 more
TL;DR: In this paper, the use of Fourier coefficients to describe closed planar curves is reviewed, and the application of this to forming a catalog of shapes produced by mechanical linkage mechanisms is discussed.
Journal ArticleDOI
Optimum synthesis of path generating four-bar mechanisms using differential evolution and a modified error function
TL;DR: In this article, a new error function was proposed for optimum synthesis of path generating mechanisms, which was formulated in a way that makes it suitable for use in applications when the primary requirement is that the synthesized path should match closely with the prescribed path.