On Algorithmic Stabilization of 2D Contact Analyses by Means of a Modified Node-Smoothing Technique

2009 ◽  
Author(s):  
W.N. Liu ◽  
T. Huemer ◽  
J. Eberhardsteiner ◽  
H.A. Mang
Keyword(s):  
Smoothing Technique

Simplified realisation method of modified spatial smoothing technique

1988 ◽  
Vol 24 (18) ◽  
pp. 1176 ◽  
Author(s):  
S. Park ◽  
C.K. Un
Keyword(s):  
Spatial Smoothing ◽  
Smoothing Technique

scholarly journals Discrete Wavelet Transform for the Real-Time Smoothing of Wind Turbine Power Using Li-Ion Batteries

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2184
Author(s):  
Andrea Mannelli ◽  
Francesco Papi ◽  
George Pechlivanoglou ◽  
Giovanni Ferrara ◽  
Alessandro Bianchini
Keyword(s):  
Wavelet Transform ◽  
Wind Turbine ◽  
Discrete Wavelet Transform ◽  
Real Time ◽  
Power Output ◽  
Discrete Wavelet ◽  
Smoothing Technique ◽  
The Real ◽  
Power Smoothing ◽  
Li Ion

Energy Storage Systems (EES) are key to further increase the penetration in energy grids of intermittent renewable energy sources, such as wind, by smoothing out power fluctuations. In order this to be economically feasible; however, the ESS need to be sized correctly and managed efficiently. In the study, the use of discrete wavelet transform (Daubechies Db4) to decompose the power output of utility-scale wind turbines into high and low-frequency components, with the objective of smoothing wind turbine power output, is discussed and applied to four-year Supervisory Control And Data Acquisition (SCADA) real data from multi-MW, on-shore wind turbines provided by the industrial partner. Two main research requests were tackled: first, the effectiveness of the discrete wavelet transform for the correct sizing and management of the battery (Li-Ion type) storage was assessed in comparison to more traditional approaches such as a simple moving average and a direct use of the battery in response to excessive power fluctuations. The performance of different storage designs was compared, in terms of abatement of ramp rate violations, depending on the power smoothing technique applied. Results show that the wavelet transform leads to a more efficient battery use, characterized by lower variation of the averaged state-of-charge, and in turn to the need for a lower battery capacity, which can be translated into a cost reduction (up to −28%). The second research objective was to prove that the wavelet-based power smoothing technique has superior performance for the real-time control of a wind park. To this end, a simple procedure is proposed to generate a suitable moving window centered on the actual sample in which the wavelet transform can be applied. The power-smoothing performance of the method was tested on the same time series data, showing again that the discrete wavelet transform represents a superior solution in comparison to conventional approaches.

Optimal covering of solid bodies by spheres via the hyperbolic smoothing technique

2014 ◽  
Vol 30 (2) ◽  
pp. 391-403 ◽  
Author(s):  
Helder Manoel Venceslau ◽  
Daniela Cristina Lubke ◽  
Adilson Elias Xavier
Keyword(s):  
Smoothing Technique ◽  
Solid Bodies ◽  
Hyperbolic Smoothing

Differentiation of Human Motion Data Using Combined Spline and Least Squares Concepts

1991 ◽  
Vol 113 (3) ◽  
pp. 348-351 ◽  
Author(s):  
W. Simons ◽  
K. H. Yang
Keyword(s):  
Least Squares ◽  
Human Motion ◽  
Smoothing Technique ◽  
Data Smoothing ◽  
Motion Data ◽  
Differentiation Method ◽  
Benchmark Data

A differentiation method, which combines the concepts of least squares and splines, has been developed to analyze human motion data. This data smoothing technique is not dependent on a choice of a cut-off frequency and yet it closely reflects the nature of the phenomenon. Two sets of published benchmark data were used to evaluate the new algorithm.

scholarly journals Forecasting Malaysian Ringgit Using Exponential Smoothing Techniques

2021 ◽  
Vol 6 (2) ◽  
pp. 1-10
Author(s):  
Noreha Mohamed Yusof ◽  
Norani Amit ◽  
Nor Faradilah Mahad ◽  
Noorezatty Mohd Yusop
Keyword(s):  
Exchange Rate ◽  
Foreign Currency ◽  
The United States ◽  
Exponential Smoothing ◽  
Percentage Error ◽  
Smoothing Technique ◽  
Smoothing Techniques ◽  
United States Dollar ◽  
Double Exponential Smoothing ◽  
Exponential Smoothing Technique

Forecasting the foreign currency exchange is a challenging task since it is influenced by political, economic and psychological factors. This paper focuses on the forecasting Malaysian Ringgit (MYR) exchange rate against the United States Dollar (USD) using Exponential Smoothing Techniques which are Single Exponential Smoothing, Double Exponential Smoothing, and Holt’s method. The objectives of this paper are to identify the best Exponential Smoothing Technique that describes MYR for 5 years period and to forecast MYR 12 months ahead by using the best Exponential Smoothing Technique. The comparison between these techniques is also made and the best one will be selected to forecast the MYR exchange rate against USD. The result showed that Holt’s method has the smallest value of error measure which depending on the Mean Square Error (MSE) and Mean Absolute Percentage Error (MAPE) for the evaluation part. The MSE is 1.43915x10-14 and MAPE is 2.5413 x 10-6. Meanwhile, the forecast value of MYR in August 2019 is RM 4.30226.

scholarly journals Hybrid gradient smoothing technique with discrete shear gap method for shell structures

2017 ◽  
Vol 74 (8) ◽  
pp. 1826-1855 ◽  
Author(s):  
W. Li ◽  
Z.X. Gong ◽  
Y.B. Chai ◽  
C. Cheng ◽  
T.Y. Li ◽  
...  
Keyword(s):  
Shell Structures ◽  
Smoothing Technique ◽  
Gradient Smoothing Technique ◽  
Discrete Shear Gap ◽  
Gradient Smoothing
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