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Online since: January 2019
Authors: Ahmed Rassili
The solution not only combines the different mechanical properties in one tool but also has a economical benefit as it offers tool cost consequent reduction.
In reference to data of Fig. 3 (a), used materials could easilty reach this limit if some experimental considerations are not taken into account as we will show later.
In combining results of Figs. 5 and 6 and data of Fig. 3, one could conlculde that in any case, in order to deal with a safe thixoforming process adequate and treatment should be combined.
Leveque, Tool steels: Unormalised numerical data, on http://www.techniques-ingenieur.fr [8] J.
In reference to data of Fig. 3 (a), used materials could easilty reach this limit if some experimental considerations are not taken into account as we will show later.
In combining results of Figs. 5 and 6 and data of Fig. 3, one could conlculde that in any case, in order to deal with a safe thixoforming process adequate and treatment should be combined.
Leveque, Tool steels: Unormalised numerical data, on http://www.techniques-ingenieur.fr [8] J.
Online since: July 2020
Authors: Mario Saggio, Alfio Guarnera, Salvatore Cascino
Experimental Hysteresis Results
Experimental data show threshold hysteresis when device is stressed applying repeatedly, with regular time intervals (2.5 msec), a Vgs linearly increasing and decreasing with 1 V step, in the range [-20 V to 20 V].
Fig.9 shows just described simulated behavior for the two temperatures in the time range [1 sec;1000 sec]: power law has been obtained fitting the simulation data.
As can be observed from Fig. 10a, a reduction of the amplitude of the hysteresis cycle has been observed.
The results are in agreement with the literature data on long term degradation, too; they show that the time evolution of the ΔVth threshold voltage shift follows a power law behavior.
Fig.9 shows just described simulated behavior for the two temperatures in the time range [1 sec;1000 sec]: power law has been obtained fitting the simulation data.
As can be observed from Fig. 10a, a reduction of the amplitude of the hysteresis cycle has been observed.
The results are in agreement with the literature data on long term degradation, too; they show that the time evolution of the ΔVth threshold voltage shift follows a power law behavior.
Online since: September 2017
Authors: Yuri M. Kosichenko, O.A. Baev
The development of geomembrane compositions of fresh polymeric raw materials combined with geotextile in single material aims to create a highly reliable anti-seepage materials as compared to currently widely-used 1.0-3.0 mm thick geomembranes, which will ensure the reduction of their damage 5 to 10 times and, respectively, permeability of 1 to 2 orders of magnitude [6,7].
The criteria of technical efficiency and operational reliability of impervious coating from geomembrane compositions are suggested by the authors [8] as follows: - by geomembrane compositions waterproof properties: ; (1) - by geomembrane compositions strength: ; (2) - by durability (service life) of geomembrane composition coatings: ; (3) - by the probability of geomembrane coating compositions flawless operation: ; (4) where and being respectively averaged from studies and estimations data and allowable filtration factor of geomembrane compositions coating
; and being respectively tensile strength of geomembrane compositions based on tests results and standards; and being respectively service life of geomembrane compositions coating based on observation data and standards; and being respectively estimated and rated probability of flawless service of geomembrane compositions coating.
The waterproof value of geomembrane composition impervious coatings can be found based on test data under natural conditions or with estimated dependencies, obtained by solving problems mathematically with filtration theory methods using complex variable and conformal mapping functions theory methods.
The criteria of technical efficiency and operational reliability of impervious coating from geomembrane compositions are suggested by the authors [8] as follows: - by geomembrane compositions waterproof properties: ; (1) - by geomembrane compositions strength: ; (2) - by durability (service life) of geomembrane composition coatings: ; (3) - by the probability of geomembrane coating compositions flawless operation: ; (4) where and being respectively averaged from studies and estimations data and allowable filtration factor of geomembrane compositions coating
; and being respectively tensile strength of geomembrane compositions based on tests results and standards; and being respectively service life of geomembrane compositions coating based on observation data and standards; and being respectively estimated and rated probability of flawless service of geomembrane compositions coating.
The waterproof value of geomembrane composition impervious coatings can be found based on test data under natural conditions or with estimated dependencies, obtained by solving problems mathematically with filtration theory methods using complex variable and conformal mapping functions theory methods.
Online since: January 2012
Authors: Helmut Clemens, Matthew J. Peel, Rian J. Dippenaar, Thomas Schmoelzer, Svea Mayer, Klaus Dieter Liss, Kun Yan, Mark Reid
One targeted area of application for this type of materials are blades in the low-pressure turbine of jet engines where they could replace Ni based alloys and thereby contribute to a substantial weight reduction [1-3].
Data obtained from the cast specimen are represented by triangles, those stemming from the extruded specimen are circles.
Data obtained by the in-situ diffraction experiment show that especially in the cast and HIPed specimen a significant refinement of the microstructure occurs.
Microstructural images support this interpretation of the synchrotron data and are also in accordance with the stress-strain curves obtained during the experiments.
Data obtained from the cast specimen are represented by triangles, those stemming from the extruded specimen are circles.
Data obtained by the in-situ diffraction experiment show that especially in the cast and HIPed specimen a significant refinement of the microstructure occurs.
Microstructural images support this interpretation of the synchrotron data and are also in accordance with the stress-strain curves obtained during the experiments.
Online since: March 2012
Authors: Saowaroj Chuayjuljit, Thatisorn Karnjanamayul
The tensile data of the neat PP, PP/EPDM blends and PP/EPDM/wollastonite composites are summarized in Fig. 2 and Table 1.
The reduction in the tensile strength and Young’s modulus and the increase in the elongation at break are related to the incorporation of low strength and modulus EPDM elastomer into the PP matrix.
Table 1 Tensile data of the neat PP, PP/EPDM blends and PP/EPDM/wollastonite composites.
Table 2 TGA data of the neat PP, PP/EPDM blends and PP/EPDM/wollastonite composites.
The reduction in the tensile strength and Young’s modulus and the increase in the elongation at break are related to the incorporation of low strength and modulus EPDM elastomer into the PP matrix.
Table 1 Tensile data of the neat PP, PP/EPDM blends and PP/EPDM/wollastonite composites.
Table 2 TGA data of the neat PP, PP/EPDM blends and PP/EPDM/wollastonite composites.
Online since: May 2012
Authors: Wan Bo Qu, Yan Li
With this method, designers used to design anti-slide piles by looking up datum in various of design manuals and it would be a burdensome task.
A lot of stabilizing measures could be used to retain the slope, among which, the following were widely used: groundwater drainage, load reduction, reinforcing the toe of the slope, improving the mechanical features of stratum and supporting the slope with some structures.
Check whether these datum meet the termination conditions or not.
Hence, we adopted a set of datum according to current market to search the geometry sizes of anti-slide pile in this case.
Main datum in relation to the prices of anti-slide piles materials and payment for excavating were given in Table 1 and the outputs based on these datum were listed out in Table 2.
A lot of stabilizing measures could be used to retain the slope, among which, the following were widely used: groundwater drainage, load reduction, reinforcing the toe of the slope, improving the mechanical features of stratum and supporting the slope with some structures.
Check whether these datum meet the termination conditions or not.
Hence, we adopted a set of datum according to current market to search the geometry sizes of anti-slide pile in this case.
Main datum in relation to the prices of anti-slide piles materials and payment for excavating were given in Table 1 and the outputs based on these datum were listed out in Table 2.
Online since: March 2015
Authors: J.J. Zhao, H.J. Ge, Wei Liang
However, it is normal that the decrease of the load causes a reduction of electric energy measurement.
Test data is shown in table 1, where f is the frequency of drive signal.
Fig.1 The Amplitude Response of The Equiripple Linear-Phase filter Fig.2 The Phase Response of The Equiripple Linear-Phase filter In practical application, the filter can be programmed and implement real-time filtering of site signal through embedded system or we can send the data of the fault signal to a computer using GSM/GPRS communication and realize the filtering on the computer.
Extraction and Analysis of the Fault Information To ensure the representativeness of test data, we monitor a certain power system operation under the condition of 0% load, 10% load and 20% load.
Test data is shown in table 1, where f is the frequency of drive signal.
Fig.1 The Amplitude Response of The Equiripple Linear-Phase filter Fig.2 The Phase Response of The Equiripple Linear-Phase filter In practical application, the filter can be programmed and implement real-time filtering of site signal through embedded system or we can send the data of the fault signal to a computer using GSM/GPRS communication and realize the filtering on the computer.
Extraction and Analysis of the Fault Information To ensure the representativeness of test data, we monitor a certain power system operation under the condition of 0% load, 10% load and 20% load.
Online since: September 2014
Authors: Yu Bie, Si Ming Zheng, Ming Fu Hu, Wen Yuan Mao, Yong Fang
Such as Beckman [1] proposed the f-chart method by calculating over 300 examples, which only need to know the monthly average meteorological data to calculate the solar fraction.
Manuel and Ari [5] also proposed a simple method to predict the long-term performance of solar collector based on the monthly average meteorological data.
The traditional calculation based on monthly average or annual average meteorological data will obviously lead to a greater error, and thus provides with limited reference value for designers.
The curve trend is probably because that the savings due to reduction of fuel consumption increase when the solar fraction increasing at first.
Manuel and Ari [5] also proposed a simple method to predict the long-term performance of solar collector based on the monthly average meteorological data.
The traditional calculation based on monthly average or annual average meteorological data will obviously lead to a greater error, and thus provides with limited reference value for designers.
The curve trend is probably because that the savings due to reduction of fuel consumption increase when the solar fraction increasing at first.
Online since: October 2013
Authors: Li Ping Sun, Zheng Liu, Chen Xing Yang, Ze Fu Zhang
Although there is a difference, but it has been proved that the data is quotable.
(5)Ignore the area reduction of multilayer CFRP in the simulation of ANSYS
Therefore, in the simulation of ANSYS, direct correlation of the mid-span deflection react the changes of stiffness. 3.1.1The stiffness analysis of RC beams with different initial load The minimum of yield load to unreinforced beams is 109.0KN, according to design, the range of loading to contrast is 63.78KN-109.0KN, and three sets of data selecting should be contrasted.
As shown in tab.3,camparing the data of Fi=42.52KN's with direct reinforced beams' with same layer of CFRP, we can find that the stiffness of L1-4 decrease 9.8%;and the L2-4's which Fi=63.78KN decrease 13.4%.It means that under the same layer of CFRP the high initial load, the more stiffness decreases compared to the direct reinforced beams.
(5)Ignore the area reduction of multilayer CFRP in the simulation of ANSYS
Therefore, in the simulation of ANSYS, direct correlation of the mid-span deflection react the changes of stiffness. 3.1.1The stiffness analysis of RC beams with different initial load The minimum of yield load to unreinforced beams is 109.0KN, according to design, the range of loading to contrast is 63.78KN-109.0KN, and three sets of data selecting should be contrasted.
As shown in tab.3,camparing the data of Fi=42.52KN's with direct reinforced beams' with same layer of CFRP, we can find that the stiffness of L1-4 decrease 9.8%;and the L2-4's which Fi=63.78KN decrease 13.4%.It means that under the same layer of CFRP the high initial load, the more stiffness decreases compared to the direct reinforced beams.
Online since: October 2011
Authors: Tae Won Park, Sung Pil Jung, Hyun Seok Song, Won Sun Chung
In part.2, the simulation model of an actual disc brake system is created, and analysis results are compared to the dynamo test data.
Analysis strategy based on the staggered approach In the monolithic approach [14], two different analysis domains such as the dynamic and thermal system are solved simultaneously and data is exchanged at the iteration level.
In part 2 of this paper, the analysis technique will be applied to an actual disc brake module, and the simulation results will be compared with the dynamo test data References [1] K.
Zagrodzki, “Eigenvalue solution of thermoelastic instability problems using Fourier reduction”, Proc.
Analysis strategy based on the staggered approach In the monolithic approach [14], two different analysis domains such as the dynamic and thermal system are solved simultaneously and data is exchanged at the iteration level.
In part 2 of this paper, the analysis technique will be applied to an actual disc brake module, and the simulation results will be compared with the dynamo test data References [1] K.
Zagrodzki, “Eigenvalue solution of thermoelastic instability problems using Fourier reduction”, Proc.