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Online since: February 2013
Authors: Fu Yu Li, Yong Xin Peng, Zhe Kun Li, Qi Wang
RFID technology introduced can record the condition of whole life cycle of product through its convenient data reading and writing function.
It can track quickly objects, data exchange and work in all kinds of bad environment.
And follow the circular economic reduction, re-use, recycling principle ("3r "principle), useful waste parts are returned to product life cycle stages, to participate in product total life cycle.
If the product need to be maintained, technical personnel marks on RFID tags to update data through the PDA (personal digital assistant).
It can track quickly objects, data exchange and work in all kinds of bad environment.
And follow the circular economic reduction, re-use, recycling principle ("3r "principle), useful waste parts are returned to product life cycle stages, to participate in product total life cycle.
If the product need to be maintained, technical personnel marks on RFID tags to update data through the PDA (personal digital assistant).
Online since: September 2015
Authors: Nor Hafiez Mohamad Nor, D.K. Aspinwall, J.B. Saedon, S.L. Soo, A. Barnacle
In the late 1960’s, Kahles and Field [1] developed a procedure for surface integrity evaluation which suggests the type of data measures and analysis necessary, depending on the level of workpiece surface integrity knowledge required.
However in order to achieve a good flatness as well as machining datum, the surfaces of the workpiece were ground and further face milled with VFSDD0800, Ø8.0mm face mill cutter with cutting parameter of Vc=100m/min, f =1800mm/min and doc=0.1mm as manufacturer suggested.
Figure 8 shows the results compared against the material bulk hardness and face milled for machining datum.
The data was found to converge into two distinct groups, which reflect the different depths of cut used.
In general, a reduction in workpiece hardness is caused by thermal softening (assuming the absence of heavy workpiece deformation/strain hardening), typically associated with severe operating parameters.
However in order to achieve a good flatness as well as machining datum, the surfaces of the workpiece were ground and further face milled with VFSDD0800, Ø8.0mm face mill cutter with cutting parameter of Vc=100m/min, f =1800mm/min and doc=0.1mm as manufacturer suggested.
Figure 8 shows the results compared against the material bulk hardness and face milled for machining datum.
The data was found to converge into two distinct groups, which reflect the different depths of cut used.
In general, a reduction in workpiece hardness is caused by thermal softening (assuming the absence of heavy workpiece deformation/strain hardening), typically associated with severe operating parameters.
Online since: October 2006
Authors: Myong Hyun Baek, Wen Quan Cui, Kwang Kyun Kim, Ye Yeon Won
From the resulting voxel data, a rectangular volume of interest (VOI) was
selected at a side length of 5 mm and height of 10 mm.
To limit the computational requirements of the FE analyses, the µCT voxel data were resampled at an isotropic size of 80 um, and then imported into the software (BIONIX, Cantibio, Suwon, Korea), in which voxels with a gray-scale value beyond a specified threshold level were converted to into hexahedron-based FE meshes FE models using previously published code [8].
The data show that in addition to BV/TV, the structural parameters correlate significantly with Young's modulus.
With aging and osteoporosis, plate-like trabeculae are perforated towards a rod-like structure and some trabeculae are lost, resulting in reduction of bone mass and structural changes.
To limit the computational requirements of the FE analyses, the µCT voxel data were resampled at an isotropic size of 80 um, and then imported into the software (BIONIX, Cantibio, Suwon, Korea), in which voxels with a gray-scale value beyond a specified threshold level were converted to into hexahedron-based FE meshes FE models using previously published code [8].
The data show that in addition to BV/TV, the structural parameters correlate significantly with Young's modulus.
With aging and osteoporosis, plate-like trabeculae are perforated towards a rod-like structure and some trabeculae are lost, resulting in reduction of bone mass and structural changes.
Online since: December 2012
Authors: Yue Feng Zhu, Qin Yang, Wei Tang, Dao Zhu Wei
The product design solution strategies and realization algorithm are studied by configuration technology based on ontology and knowledge rules, it can storage heterogeneous data sources and retrieve the complex association through using favorable concept hierarchy and logical reasoning, and provide customers with more accurate, appropriate and comprehensive data [2].
The knots mapping is implemented through the generated information by data conversion in terms of the similar associated information with semantic feature between different domains.
Under the action of rationality validation mechanism, it is an effective measure to reflect the configuration rationality and integrity of the associated node by the means of reduction of status information [4].
The knots mapping is implemented through the generated information by data conversion in terms of the similar associated information with semantic feature between different domains.
Under the action of rationality validation mechanism, it is an effective measure to reflect the configuration rationality and integrity of the associated node by the means of reduction of status information [4].
Online since: October 2010
Authors: Qian Zhu, Feng Lan Li
Based on the studies [8], there are four effects of stone powder on concrete shrinkage: the filling effect results in the fineness of pores and reduction of pore rate, the crystal nuclei effect leads to the accelerated hydration of C3S, the active effect improves the surface state due to the reaction of partial CaCO3 in stone powder with C3A in cement and enhances the bond-strength between particle of stone powder and hydration products, the water absorption effect reduces the gather of free-water on boundary surface and improves the border of paste and aggregate.
Based on the tests, the statistical constants can be determined by the fitness of formula (1) with test data.
The fitness of test data with formula (1) are shown in Fig. 3.
Table 6 The values of statistical constants of formula (1) Statistical constant Stone powder content 7% 3%-5% 10%-16% a -9.20 32.97 16.53 b 72.93 90.83 82.92 Relation coefficient 0.998 0.996 0.996 Fig.3 Fitness of all test data Conclusions The drying shrinkage of concrete with proto-machine-made sand is affected by the complex effects of stone powder on internal forms of hardened concrete.
Based on the tests, the statistical constants can be determined by the fitness of formula (1) with test data.
The fitness of test data with formula (1) are shown in Fig. 3.
Table 6 The values of statistical constants of formula (1) Statistical constant Stone powder content 7% 3%-5% 10%-16% a -9.20 32.97 16.53 b 72.93 90.83 82.92 Relation coefficient 0.998 0.996 0.996 Fig.3 Fitness of all test data Conclusions The drying shrinkage of concrete with proto-machine-made sand is affected by the complex effects of stone powder on internal forms of hardened concrete.
Online since: August 2013
Authors: Ya Nan Zhang, Lin Zhi Sun, Lin Yong Shen, Cheng Gang Wang, Ge Pan
The accuracy of the mechanism is an important technical indicator, the theory is:
(5)
Wherein, p is the screw pitch, α is the subdividing number of the motor, β is the reduction ratio of the harmonic reducer.
According to the position of target recorded, we calculate the stepping length, the data shown in Figure 6.
The software records two data per second, a total of 3600 points.
The specific data is shown in Figure 8.
According to the position of target recorded, we calculate the stepping length, the data shown in Figure 6.
The software records two data per second, a total of 3600 points.
The specific data is shown in Figure 8.
Online since: September 2016
Authors: Chaiyoot Meengam, Siva Sitthipong, Prawit Towatana, Amnuay Sitticharoenchai
According to the data from the site survey, all Cut-stern Kolek Boats have been encountered with the aforementioned problems.
Since the machine for fatigue testing has a limitation on weight, which can be test between 5-40 kilograms, the reduction of specimens’ diameter is needed in order to increase the weight of testing.
By using the stress from real loading= 517 MPa to analyze with the life prediction equation of each type of weld metals from the data in Eq. 2, it was found that the Shield Metal Arc Welding Process gave the working cycle of 60,580.
By means of combining the data of material properties with mechanical properties, a diagram demonstrating the range of failure could be observed.
Since the machine for fatigue testing has a limitation on weight, which can be test between 5-40 kilograms, the reduction of specimens’ diameter is needed in order to increase the weight of testing.
By using the stress from real loading= 517 MPa to analyze with the life prediction equation of each type of weld metals from the data in Eq. 2, it was found that the Shield Metal Arc Welding Process gave the working cycle of 60,580.
By means of combining the data of material properties with mechanical properties, a diagram demonstrating the range of failure could be observed.
Online since: August 2014
Authors: Ya Ping Wang, Ge Li, Chang Xuan Shi, Yun Peng Shi, Yu Xiang Ying, Jian Zhou
The reduction ratio between the generator of the car and the reducer pinion mechanism is
(3) Winding Machine Control Module Design Speed and Position Control Module.Speed and position module is mainly used to complete the main shaft and the longitudinal slip board box speed and accurate position control, obtain winding data according to the winding algorithm, motion controller based on the control algorithm of the servo motor to complete the corresponding function.
Through the serial port MC206 is set to the HOSTLINK master agreement, internal data of OMRON PLC can use the HLM_READ command to read, using the HLM_WRITE command to rewrite the PLC internal data, completing the communication of TRIO control card and PLC.
(3) Winding Machine Control Module Design Speed and Position Control Module.Speed and position module is mainly used to complete the main shaft and the longitudinal slip board box speed and accurate position control, obtain winding data according to the winding algorithm, motion controller based on the control algorithm of the servo motor to complete the corresponding function.
Through the serial port MC206 is set to the HOSTLINK master agreement, internal data of OMRON PLC can use the HLM_READ command to read, using the HLM_WRITE command to rewrite the PLC internal data, completing the communication of TRIO control card and PLC.
Online since: July 2015
Authors: Ze Ying Yang, Ting Ting Yuan, Xing Hua Xi, Jing Liu, Pan Gao
The through force sensor was applied to measure SMA bar stress during the loading process and thermocouple and temperature patrol instrument was used to acquire SMA bar temperature data automatically by computer during electrifying motivation process (Fig. 3).
The data on each instrument and the crack width should be scrupulously recorded all through the process.
The automatic recording program of temperature patrol instrument was used to acquire SMA bar temperature data during entire electrifying motivation process.
On the other hand, because of the decreasing of mid-span deflection, test beam moved upward and the loading equipment was subjected to a new reaction, which was increasing constantly, from the beam (table 4), and this, in turn, made the force on beam increase too, thereby it restrained the further reduction of the strain and deflection.
The data on each instrument and the crack width should be scrupulously recorded all through the process.
The automatic recording program of temperature patrol instrument was used to acquire SMA bar temperature data during entire electrifying motivation process.
On the other hand, because of the decreasing of mid-span deflection, test beam moved upward and the loading equipment was subjected to a new reaction, which was increasing constantly, from the beam (table 4), and this, in turn, made the force on beam increase too, thereby it restrained the further reduction of the strain and deflection.
Online since: October 2018
Authors: M.Sh. Nikhamkin, N.A. Sazhenkov, D. Samodurov
Estimation of the adequacy of the adopted model of fatigue life to experimental data was carried out from the value of the Pearson linear correlation coefficient r:
(5)
Fig. 3.
Such sandwich panels are used in the construction of gas turbine engine case parts to provide the required the noise suppression properties and weight reduction.
The reliability of the linear correlation of the experimental data is confirmed by the value of the Pearson coefficient r = – 0.99.
The reliability of the linear correlation of the experimental data is confirmed by the value of the Pearson coefficient r = – 0.92.
Such sandwich panels are used in the construction of gas turbine engine case parts to provide the required the noise suppression properties and weight reduction.
The reliability of the linear correlation of the experimental data is confirmed by the value of the Pearson coefficient r = – 0.99.
The reliability of the linear correlation of the experimental data is confirmed by the value of the Pearson coefficient r = – 0.92.