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The availability of reliable fatigue data is of continuous and often urgent need.
Generating S-N-data needs to be performed in a quick and cost-effective way.
The data acquisition software was programmed according to the requirements of the fatigue tests on National Instruments LabVIEW.
As data input for the SteBLifemsb calculation, DT-values are taken at Nf/2 and plotted as sa-DT-curves as shown in Fig. 3b.
The fatigue strength coefficients and exponents of calculated and conventionally determined S-N-data are in the same range (see Fig. 5, upper right).

The test and evaluation of various index of the hollow slab bridge The total technical state of the bridge According to the existing evaluation method, based on the test data of the hollow slab bridge used for 10years [3], the carrying capacity analysis is studied, that can provide reference for the like bridges.
The section damage of concrete The reduction coefficient of section is defined by the state of material decency, carbonization, physical and chemical damage, by the test data’s and the evaluation standard, the reduction coefficient of section is 0.94.
Considering the actual condition of steel corrosion, the reduction coefficient of steel is 0.95.
The reduction of cross section According to the test result and the evaluation standard, the reduction coefficient of the cross section of the slab is 0.94; the reduction coefficient of steel is 0.95.
Table1 Comparison of resistance between damaged and undamaged slab（） Undamaged slab[6] damaged slab Theory value Reduction value Load test value 405.271 407.93 599.5 In the table, to the slab, not considering the damage and the crack, the theoretical value is limit moment in the midspan is 405.271, while by the damage load test, the limit moment is 599.5, considering the cross section damage and the durability deterioration, the limit moment is 407.93, decline 38.51% compared with the real moment value derived by the test data.

Data analysis.
A series of experimental data are obtained.
Different natural frequencies will be extracted through the experiment data analysis.
Data analysis.
The inaccurate data are removed, and the average values of the reserved natural frequency and damping ratio data of every order are calculated in order to guarantee the data to be closer to the real value.

An NN-EPM 2-20-15-4 configuration has been constructed out of 100 training data and then validated by 30 testing data.
NN block, has a function to construct the NN configuration based on the training process carried out on training data.
The NN configuration that has been constructed represents a pattern of correlation between the input data and out data.
Next step is conducting the test on to the NN configuration resulted from NN block by employing the testing data.
The testing period is aimed at generalizing the trained NN-EPM configuration by employing 30 pairs of data.

Besides the mass loss data, the residual strength and the thickness of the corroded layers were used for the characterisation of the corrosion intensity.
enhanced subcritical crack growth, reduction of strength by pit formation.
Besides the mass loss data, the residual strength and the thickness of the corroded layers were used for the characterisation of the corrosion intensity.
All ZrO2 containing materials show a reduction in strength especially under hydrothermal conditions.
The Mg- PSZ and ZTA ceramics exhibit a reduction in the residual strength under hydrothermal conditions, whereas in acids this strength reduction is much less pronounced.

This material was cold rolled with the reduction ratio of 50, 90 and 98% into the thin plate with thickness of about 0.5mm.
This indicates that the higher the reduction ratio is, the smaller the grain size will be.
It can be seen that data points are almost on the straight line in spite of the reduction 159 ratio.
Data points for non-heat treated (as rolled) specimen and the primary recrystallized specimens at 1273K or 1573K almost fall on a common straight line.
The level of this straight line for 98% rolled specimens is thought to be the prominent proof for the improvement of the creep properties by the existence of the cube texture, because this curve located at lower level than that expected from the data of samples with smaller reduction ratios such as 10% and 50% [4].

Then this model was used to simulate tension-compression tests of Weldox960 steel and study the springback and reduction of thickness in cold-bending.
Using the data fitting method, , and are obtained easily and also shown in Table 1.
For studying the reduction of thickness, an 8-node incompatible element C3D8I instead of shell element was used to mesh the specimen.
It shows that the simulative angles have pretty good consistency with experimental data.
Meanwhile it is found that the reduction of thickness in cold-bending can be ignored for Weldox960.

After rolling, with actual measured data, friction coefficient and deformation resistance can be recalculated, and model parameter can be got by regression method.
Recalculation models of friction coefficient and deformation resistance During cold rolling process, when actual measured data such as rolling force, rolling speed, and strip thickness are got, the actual friction coefficient and deformation resistance can be calculated[3].
With actual measured data, actual friction coefficient can be decided
When these models are used for one cold rolling mill, normal material which deformation resistance property is known can be rolled at first, in order to get actual data for friction coefficient recalculation.
When actual friction coefficient and deformation resistance data have been recalculated, then the paramters of the Eq.12 and Eq.13 can be got by regression method.

In the experiment of friction force property analysis by adding nanoparticles to grease, more accurate measured data can be obtained.
Experimental data show that when TiO2 nanoparticles at 1 wt.% are added to grease in the actuation process of pneumatic cylinder, the dynamic friction force is obviously reduced, and is not much affected by speed change.
From the experimental data and analytical results acquired above, the following conclusions are drawn: 1.
The data show that when grease is used in pneumatic cylinder for lubrication, the grease added with nanoparticles can obviously reduce the static friction force or dynamic friction force of cylinder bore, and the nano-grease at 1 wt.% can achieve the best performance. 2.
The obtained data can be sufficiently used to analyze the lubrication property of pneumatic cylinder by the grease added with TiO2 nanoparticles, and can be used as a reference for improvement of the design of pneumatic cylinder and grease.

From the data in Fig.3, the gas consumption amount of cogeneration decrease with the improvement of equipment’s electricity generation efficiency in all of the running strategies. they are about two times in 20% electricity generation efficiency compared of that in 45% electricity generation efficiency.
According to Fig.5 data, even in 24 hours running strategy Case1, the waste thermal is only about 10 percent in 45% electricity generation efficiency of that in 20% electricity generation efficiency.
From the data of Fig.9, it can be found that the energy saving ratio of running strategy Case1, Case2 and Case3 are minus and it is only 4.3% in Case5 in (20, 60) efficiency performance.
Fig.10 shows the reduction data.
For (35, 45), Case1 gains best CO2 reduction and energy cost reduction and Case 2 gains the best energy saving.