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According to the real operation situation, the multi-factor aging test sequence with electric field, temperature field, mechanical vibration and thermal cycling was developed, and the test platform with multi-factor aging was built in this research.
It generally occurs in one or more air gap in the insulation medium, and it doesn’t affect the short-term electric strength of electrical equipment.
But few reports obtained a clear conclusion about the relationship between residual life and multiple factors.
In this research, the multiple factors test (set multiple factors at same time) was carried out, the partial discharge of the stator bar was investigated during the tests.
TC—thermo-cycling T—temperature field EL—electric field V—mechanical vibration VT—test Fig.2 Multi-factor aging test model The Fig.2 shows the multi-factor aging test sequence.

In this context, the control of metallic materials properties is essential to develop any structure.
Hence, the cell structure affects the walls.
The tensor sesh is evaluated based on elastic properties of the matrix and the mechanical predicted behaviour will be too stiff.
This tensor depends on active systems, elastic properties, stress rate and deformation history of each phase.
The elastic properties are considered as isotropic (μ = 70 GPa and ν = 0.3).

Introduction In recent years, safety mining activities affected by the high earth temperature, high underground stress, high hydraulic pressure of the karst and mining disturbances under the conditons of deep mining. and high-pressure groundwater pressure, underground stress, and mining disturbances are the main factors that affect the underground surrounding rock stress and deformation in deep mining.
In fact, mutual restraint and mutual influence between this three factors, finally, groundwater seepage field and the deformation of the rock stress result in groundwater-solid coupling effect[1].
And the“▽P”reflected the impact of the water seepage field in solid skeleton, its essence is that the pore pressure generated in the fluid flow affected the stress field of the solid skeleton, thereby affecting the deformation of the solid skeleton.
Establishment of model Underground mass rock physical and mechanical properties parameters in the model shown in Table1.
[8]. 2004,29(2):182-185.YIN Shang-xian,WU Qiang.Hydrogelogical and mechanical basics of water inrush from karstic collapse columns in Northern China[J].

Introduction Composites hygrothermalageing is a significant phenomenon that concerns several industrial products and consumer goods made from such materials.Due to which the mechanical properties of polymers and their composites affect at a microscopic level[1].Experiments have revealed that plasticization and hydrolysis were the two main causes of degradation of polymeric composites during hygrothermal aging process[2].
Factors responsible for this phenomena are, plastic deformation at higher temperature, and internal stresschange(rise) atfiber/matrix interface due to different coefficient of thermal expansion resulting in interfacial debonding [9, 15].Moreover, hygrothermal exposure causes matrix plasticisation, micro-cracking, voids, and interfacial debonding.
From this research it is evident that mechanical characterisation of the epoxy resin confirms that mechanical properties in general are affected by water sorption/desorption.
The overall reductions in mechanical properties are mainly attributed to the matrix plasticisation, micro-cracking, voids and interfacial debonding of the epoxy matrix due to water absorption.Water absorption reaches equilibrium when all the micro voids are filled.
Composites: Part A 43 (2012) 1053–1060 [2]I, Ghorbel and D, Valentin:Hydrothermal Effects on the Physico-Chemical Properties of Pure and Glass Fiber Reinforced Polyester and Vinylester Resins.

This means that we need study the unsaturated properties and seepage features of tailings.
The properties of four fine grained tailing soils were presented in Table 1.
Physical properties of fine grained tailings Soil specimens Code Particle composition (%) Cu Cc Gs 0.5~0.25 (mm) 0.25~0.075 (mm) 0.075~0.05 (mm) 0.05~0.005 (mm) <0.005 (mm) Tailing silty sand TSS 11.2 45.7 23.5 12.2 7.4 12.48 1.10 3.15 Tailing silt TS 11.2 19.6 39.8 20.1 9.3 16.22 1.44 3.10 Tailing silty clay TSC 10.5 55.2 26.4 7.9 7.68 2.00 3.05 Tailing clay TC 6.6 32.5 50.3 10.6 5.51 1.57 3.04 There are many important factors affecting the SWCCs of soil, such as types of soil, soil structure, mineralogy, stress history, salt content and density[6].
The soil water characteristic curve of fine grained tailings The soil water characteristic curve of different fine grained tailings As well known, mineral composition and pore structure are the basic effective factors affecting the soil water characteristic curve.
Good consistency was observed by exploring various factors on the unsaturated characteristics of fine grained tailings.

Multi-pass FSP was conducted on as-cast NiAl bronze and as-cast AA5083 in order to modify stir zone (SZ) microstructures and mechanical properties.
Refined microstructures exhibit enhanced ambient-temperature properties and superplasticity at elevated temperatures.
Reversion of the eutectoid, deformation and subsequent transformation at the relatively high cooling rates after FSP result in the formation of fine and dispersed transformation products Mechanical Properties Benefits of FSP.
Nevertheless, SZ ductility is also improved, indeed by an even larger factor of 3×.
The depth dependence of properties in the L1 series is similar to that in the L2 series.

However, the piezoelectric properties are not sufficiently understood, partly due to the difficulties in characterizing this behavior at high temperature.
Thereby, mechanical properties, piezoelectric coefficients, and electrical constants can be deduced from an impedance measurement around a mechanical resonance frequency.
The impedance of the piezoelectric system is completely described by the intrinsic properties of the material.
A further expansion of the model would allow extraction of other piezoelectric coefficients or intrinsic properties.
Fritze, High-Temperature Electrical Conductivity and Electromechanical Properties of Stoichiometric Lithium Niobate, Diffusion Fundamentals 8 (2008) 6.1 – 6.7 [3] Y.

However, the mechanical properties of the viscous materials are between flexibility and viscous between, building models is more difficult, the dissipation of energy is more difficult to estimate.
Nonlinear factors analysis β/κ, q reflect respectively the size of the passive isolation system stiffness, the strength of the nonlinear damping.
Effect of nonlinear stiffness (β/k, η) factors on frequency response Fig.3.
Effect damping factor(fractional operator q)on frequency response Fig.4.Effect of nonlinear stiffness and damping factors on frequency response Summary This paper considered factors of the stiffness vibration isolation system and the nonlinear of damping, established the fractional order nonlinear dynamical equation of the viscoelastic passive vibration isolator; the response equation are derived by the method of harmonic balance frequency, studied the intensity of nonlinear how to affect frequency characteristics; The Floquet theory is used to analyse the stability of the vibration isolator stable periodic solutions, discussed the stability interval of constant periodic solution.
[2] A.H.Chen, D.S.Liu, Y.P.Zhu: Chinese Journal of Mechanical Engineering, ·Vol·37· (2001), No.6, p9-105.

Introduction The existence of joint dramatically affects physical and mechanical properties of rock mass.
Shuangjian Niu [3] studies rock mass strength by numerical method and thinks that peak strength is controlled by joint geometric parameters, but that residual strength is controlled by mechanical properties of joint face.
So, it can be regarded that the sensitivity of the factors affecting the jointed sample’s strength falls in the order: joint dip angle, joint strength and rock block strength
Numerical investigation on the sensitivity of jointed rock mass to various factors [J].
Uniaxial compression experimental research on deformation and failure properties of brittle marble specimen with pre-existing fissures [J].

The structure and the influencing factors on the water solubility and photosensitivity of the waterbrone UV-curable polyurethane acrylate were analyzed.
consistent with the theoretical structure. 2.2 The Influencing Factors on the Hydrophilicity of WPUA Resin.
The affecting factors of the hydrophilic property of WPUA resin include the content of hydrophilic group and the degree of neutralization.
The hydrophilic property of resin is mainly affected by the content of hydrophilic groups in the system.
Synthesis and Photographic Properties of UV-curable Water-soluble Polyester Acrylate[J].