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Complex Equipment Failure Prediction Technology Based On Virtual Environment Jingde Huang Dalian Naval Academy, China jdh925@sina.com Keywords: Information Processing Technology; Failure Prediction; Virtual Environment; Complex Equipment; Failure Mode Abstract: Complex equipment used in the process, due to changes in running load, vibration, shock and other incidental factors and other confounding factors can lead to changes in equipment and technology status, fault diagnosis of the current state of change brought about by these technologies use is not enough information, relying solely on traditional sensor technology can not test some special devices for signal extraction and data acquisition features.
Introduction In the process of using complex equipment, due to load changes, the impact of friction and other incidental factors and other confounding factors can lead to changes in equipment and technology status, fault diagnosis of the current state of change brought about by these technologies use is not enough information, relying solely on traditional sensor technology can not test some special devices for signal extraction and data acquisition features.
Therefore, the establishment of more complex equipment operating conditions of dynamic simulation environment, combined with the physical prototype test results and raw statistical data, the actual use of complex equipment, process, considering the state of mechanical properties, condition monitoring parameters and empirical knowledge of the traditional expert integration and reasoning techniques to solve complex tasks needed to protect equipment maintenance problems.
Affect the fire performance of complex equipment failures divided into two types: the type of fault and under the type of failure.
Other factors identified in the case of moderate ring wear, leakage recoil mechanism, recoil machine leak and leaking projectile by the number of complex equipment for precise description of these factors will have a direct fault of the shooting of complex equipment performance (maximum After sitting long Xmax, the maximum recoil resistance Rmax, open the bolt recoil velocity VH) have a direct impact.

This paper describes structures and properties of the medical ultrasonic transducer, and a variety of quantitative indicators that influence its performance.
Form the above formula, electromechanical coupling efficiency can be used as the comprehensive indicator. 8) Mechanical quality factor Qm Mechanical quality factor Qm is the ratio of the stored energy and the consumed energy by piezoelectric in unit time.
By doping, substituting, changing the materials and so on, the piezoelectric properties can be adjusted to a wide range and obtain the performance of special requirements.
However, BNT ceramics is difficult to polarization and not easy to get high piezoelectric properties.
Conclution This paper describes structures and properties of the medical ultrasonic transducer, and a variety of quantitative indicators that influence its performance.

This process contributes to enrichment of matrix with fine TiNi3 precipitations, which significantly affect the strain-strength properties of the alloy.
This macrostructural feature of porous materials significantly affects their physical and mechanical properties.
Table 1 shows the physical and mechanical properties of SHS-produced and sintered materials obtained in bending test.
The structure of materials investigated is responsible for their mechanical properties.
Yasenchuk, Mechanical properties of porous NiTi aluminum-doped, Fund.

Student, Department of Mechanical Engineering, Khomeinishahr.
Changes in the composition of the apatite affect its lattice parameters, morphology, crystallinity (reflecting crystal size and/or perfection) and finally dissolution properties.
In regard to the above points, lattice parameters are expected to have better dissolution properties.
Estimation of HA nano crystallite size lattice parameters is one of the most important factors for dissolution properties of bone apatites.
The emphasis was placed on the relationship of the structure (or LCs) and atomic properties of these apatites.

Low carbon steel shows the typical mechanical properties in tensile test, so this kind of steel is widely used in engineering applications [1].
Tensile test of metal material is a kind of test method used for determining mechanical properties of materials.
The performances of metal material such as elasticity, plasticity, strength and toughness under the external force are called the mechanical properties [2].
Because it hardly affected the material properties, the initial tensile curve was straight line.
It is less affected by external factors, so in general engineering applications modulus of elasticity is regarded as constant.

Polymer nanocomposites have a great interest because of special properties of carbon nanotubes (CNTs) as excellent for mechanical, chemical, electrical and thermal properties.
The chemical bonding of CNTs composed entirely of sp2 carbon-carbon bonds and also found in diamond lead to provide CNTs with extremely high mechanical properties and the mechanical properties could exceed if mixed with existing polymer [3].
Unfortunately, this treatment creates defects in the CNTs lattice, which can lower the thermal, electrical conductivity of the CNTs and affect their mechanical properties [12].
The mechanical properties show that the tensile strength and ultimate strength of the composites were enhanced [11].
Mad., Analysis of Factors Associated with the Releasability of Carbon Nanotubes (CNTs) from Materials Containing Nanocomposites, in: Nanotech 2013 Vol. 3, p. 485 – 488. (2013) [12] G.

The mechanical properties of high-Cr white cast iron are affected by the structure and appearance of carbides as well as the degree of bonding at the carbide-substrate interface [1,2,3,4].
The rate of solidification determines the size and distribution of carbides[5], which influence the mechanical properties of the cast alloy.
Too low or too high carbon content will produce hypoeutectic and hypereutectic cast iron, respectively, with large variations in mechanical properties, in particular, toughness.
The effects of fluid convection during casting on the mechanical properties and microstructure of the solidified iron were explored.
Factors such as gravity and direction of thermal convection will affect the solidification of fluid in these three zones, producing cast iron with different features and properties.

The mechanical properties are directly linked to the ratio thickness over grain size (t/d ratio) of the parts.
The unexpected fracture is hence due, among other factors, to the erroneous design of the part linked with the softening of the material if dimensions are low.
For these micro-sensors, size effect can also affect the strong coupling which exists between mechanical and electromagnetic properties of materials.
Feaugas, Microstructural size effects on mechanical properties of high purity nickel, Int.
Geiger, Influence of microstructure on the mechanical properties and the forming behaviour of very thin metal foils, Int.

What’s more, because of the superparamagnetic, it will show corresponding magnetic properties, stability, rheological properties, viscosity and other unique properties in an external magnetic field.
Precursor solution concentrations(A), reaction temperatures(B), reaction times(C) were selected as main factors to design a L9 (33) orthogonal experimental program.
Results and Discussion Magnetic Properties.
From orthogonal range analysis, it can be observed that the degree of the influence factors affected the saturation magnetization was B> C> A, i.e. reaction temperature> reaction time> concentration of the solution.
So combining the results of magnetic properties test and TEM images, the appropriate coating time was 4 hours.

Physical and mechanical properties of the obtained compacts are determined.
Another significant advantage achieved by applying the technology is the possibility for manufacturing fine-grained structure ceramic products with high mechanical properties.
Conventional static compaction methods allow obtaining compacts with the density of 40…50 %, which negatively affects the physical and mechanical properties of ceramics.
The objective of the investigation was to develop the technology of magnetic pulse compaction as well as to study the physical and mechanical properties of the obtained compacts and ceramics. 2.
According to the results in Table 3, the technology of magnetic pulse compaction definitely affects the final properties and structure of the ceramics.