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JournalISSN: 1660-9336

Applied Mechanics and Materials 

Trans Tech Publications
About: Applied Mechanics and Materials is an academic journal published by Trans Tech Publications. The journal publishes majorly in the area(s): Finite element method & Control theory. It has an ISSN identifier of 1660-9336. Over the lifetime, 97523 publications have been published receiving 161687 citations. The journal is also known as: AMM.


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Journal ArticleDOI
TL;DR: The methodology and application of the very popular nonparametric test which is a rank based test named as Kruskal-Wallis is described, which is useful as a general non parametric test for comparing more than two independent samples.
Abstract: This paper describes the methodology and application of the very popular nonparametric test which is a rank based test named as Kruskal-Wallis. This test is useful as a general nonparametric test for comparing more than two independent samples. It can be used to test whether such samples come from the same distribution. This test is powerful alternative to the one-way analysis of variance. Nonparametric ANOVA has no assumption of normality of random error but the independence of random error is required. If the Kruskal-Wallis statistic is significant, the nonparametric multiple comparison tests are useful methods for further analysis. The statistical analysis of the application data in this paper was performed with software MATLAB.

267 citations

Journal ArticleDOI
TL;DR: A review on the mother wavelet selection methods with particular emphasis on the quantitative approaches is presented in this paper, where a new technique to determine the optimum mother wavelets specifically for machinery faults diagnosis is also presented.
Abstract: Wavelet analysis, being a popular time-frequency analysis method has been applied in various fields to analyze a wide range of signals covering biological signals, vibration signals, acoustic and ultrasonic signals, to name a few. With the capability to provide both time and frequency domains information, wavelet analysis is mainly for time-frequency analysis of signals, signal compression, signal denoising, singularity analysis and features extraction. The main challenge in using wavelet transform is to select the most optimum mother wavelet for the given tasks, as different mother wavelet applied on to the same signal may produces different results. This paper reviews on the mother wavelet selection methods with particular emphasis on the quantitative approaches. A brief description of the proposed new technique to determine the optimum mother wavelet specifically for machinery faults diagnosis is also presented in this paper.

168 citations

Journal ArticleDOI
TL;DR: A novel algorithm, which is called Evolved Bat Algorithm (EBA), for solving the numerical optimization problem is proposed based on the framework of the original bat algorithm by reanalyzing the behavior of bats and considering the general characteristics of whole species of bat.
Abstract: Inspired by Bat Algorithm, a novel algorithm, which is called Evolved Bat Algorithm (EBA), for solving the numerical optimization problem is proposed based on the framework of the original bat algorithm. By reanalyzing the behavior of bats and considering the general characteristics of whole species of bat, we redefine the corresponding operation to the bats’ behaviors. EBA is a new method in the branch of swarm intelligence for solving numerical optimization problems. In order to analyze the improvement on the accuracy of finding the near best solution and the reduction in the computational cost, three well-known and commonly used test functions in the field of swarm intelligence for testing the accuracy and the performance of the algorithm, are used in the experiments. The experimental results indicate that our proposed method improves at least 99.42% on the accuracy of finding the near best solution and reduces 6.07% in average, simultaneously, on the computational time than the original bat algorithm.

155 citations

Journal ArticleDOI
TL;DR: In this paper, the concept of correlation coefficients of interval valued neutrosophic set (INS) was introduced for the first time, and the first numerical examples are presented in the paper.
Abstract: In this paper we introduce for the first time the concept of correlation coefficients of interval valued neutrosophic set (INS for short). Respective numerical examples are presented.

141 citations

Journal ArticleDOI
TL;DR: In this article, a two-stage design method for base isolation structures including simplified estimation and time history analysis was proposed, where simplified estimation is used in preliminary design stage for estimating the weight and first period of an isolated structure, the upper structure is simplified as a SDOF system.
Abstract: Two-stage design method for base isolation structures includes simplified estimation and time history analysis. Simplified estimation is used in preliminary design stage for estimating the weight and the first period of an isolated structure, the upper structure is simplified as a SDOF system. According to the expected response reduction goals and response spectrum, the first period of the isolated structure, stiffness of isolation device and number of isolation bearing can be induced. Time history analysis is employed in detail design stage, for determination and optimization of isolation device based on current standards. The author has made it realized based on the old Seismic Code. As there are some changes of provision on base isolation analysis in new code, including the value of bearing stiffness and safety factor, etc., the method mentioned above should be updated. Numerical investigation shows that for regular multi-storey frame structures, the difference of the maxium ratio of floor shear between the old and new Seismic Code increase with fortification intensity.

119 citations

Performance
Metrics
No. of papers from the Journal in previous years
YearPapers
202357
202274
202117
2020157
2019361
2018390