Search results

Mechanical components.
Taking material of NIMC (not including nuclear fuel and related material) for example, through the analysis and discussion of the standard or norm, status quo of supply and research, production capacity and existing problems of material of NIMC in China, the major obstacles and factors restricting development of nuclear power plant are found out, and the countermeasures and suggestions are also introduced to accelerate the localization progress of key NIMC in this paper.
Because there is no nuclear power plant overall design right and intellectual property rights of nuclear equipment, nuclear power equipment for material selection and fabrication, standard system construction has no discourse.
(c) To accelerate the life assessment of life of aged material During the operation of nuclear power stations, components and structure will face the aging problem, which seriously affect the safety and reliability of nuclear power plant.
American society of mechanical engineers, 2004 Edition.[11] 杨武.

The formula of anti-corrosion index S is shown as follows: Fig 1 Effects on soil physical caused by plant hedgerows Results and Analysis The impact of hedgerow on soil physical properties Soil density, porosity and mechanical component are important indices of soil physical properties, reflecting the soil's water, air, texture and structure of integrated physical properties, which have reflected water, gas, texture, structure and other complex physical characteristics.
In the sampling field of plant hedgerow, due to the inserting of root as well as retaining at the base of plant hedgerow and soil reinforcement, combined with the factors such as leaves’ decay and decomposition, the physical properties of sloped farmland soil are obviously improved.
The impact of plant hedgerow of soil chemical properties Plant hedgerows can slow the decline speed of chemical properties’ index content to play a role in fertilizer conservation.
In corn fields without plant hedgerow, the index contents of chemical properties are lower.
This is also because the plant hedgerow affects the distribution of clay.

Gravel content is an important factor affecting the mechanical properties of clay-gravel mixtures.
The shear strength of mixtures composed of clay and aggregates is affected by the ratio of clay-to-aggregate by weight [4-8].

Research on Effective Factors of Heat Transfer of Thin Heating Floor Quanying Yan a, Lili Jinb, Ran Zhou c and Suilin Wang Beijing Municipality Key Lab of Heating, Gas Supply, Ventilating and Air Conditioning Engineering, Beijing University of Civil Engineering and Architecture, 100044,China a yanquanying@bucea.edu.cn, bjinlili19880626@163.com Keywords: numerical simulation, thin heating floor, floor surface temperature, heat flux Abstract.
Research on low temperature radiant floor heating at home and abroad are theoretical and experimental research on thermal properties and mechanical properties and research on different heat source of the floor heating system, while research on optimizing the structure and the thin dry-type floor heating construction and design methods are less [1-7].
This paper made numerical simulation of heat transfer process in thin heating floor by ANSYS, analyzed the influence of some factors on heat transfer performance of the floor in order to play a guiding role in the practical application.
(2)Average floor surface temperature is affected and restricted by water temperature, pipe spacing, and the indoor temperature, taking into account the restrictions on the floor surface temperature, indoor temperature, average hot water temperature and pipe spacing should be selected to meet the requirements

For the finger seal, leakage and wear are key factors to affect its sealing performance and service life.
Effective Elastic Properties for the Finger Seal Material To perform the finger seal analysis, the effective elastic properties of the finger seal material need first to be evaluated.
In Eq. 4, the compliance matrix of the weft yarn in local coordinate system, Swk, can be written in matrix form as (6) In Eq. 6, matrix elements are calculated by mechanical properties of the carbon fiber and carbon matrix according to the literature [6].
Effective Elastic Properties.
The effective elastic properties are assessed easily from the compliance matrix of the REV, which are used to represent the effective elastic properties of the 2.5D C/C composites.

Thus in this project, the researcher used finite element method where the component behaviour and material properties is assumed linearly elastic.
This is to ensure no overlooked factors during the stage of design and analysis.
Based on the data of FE analysis, the redesign an improvement the robotic arm has been done, by taking into account the factors such as some important parameters like mass, materials, properties and so on.
The mass properties and the configurations of the design (e.g. length of arm) were considered during the calculation.
Paper presented at the International Conference on Application and Design in Mechanical Engineering (ICADME2012), Penang, 27-28 Feb. 2012 [2].

The final properties of the materials depend on the kinetics and thermodynamics of the interface processes.
One of the solutions to solve this problem is to employ a bimetal, made by welding two alloys, each chosen for its individual properties.
This should provide necessary strength and antifriction properties of the bronze layer.
This allows the obtaining of the bimetal materials made from two alloys with different properties.
Their controlled association gives systems which satisfy the requirements of mechanical properties associated with strong resistance to corrosive in marine environment.

Inverse method based on modal vibration testing for characterizing the elastic properties Yu-Hua Lin1,aand Chia L.
However before the use of composite materials, it is required to fully understand the mechanical properties of the materials, such as strength, stiffness, malleability, and the mechanical constants, in order for correct safety design and proper use.
Elastic material properties play a major role in the vibratory behaviour of structures, and thus by modal testing, the mechanical properties can be inversely achieved by measuring the natural frequencies.
The approach theory used here is basically done by using the natural frequency value extracted by experiment and then to calculate the mechanical properties of the material.
Xiao, A vibration method for measuring mechanical properties of composite, theory and experiment, Composite Structures 39 (1997) 31-38

It has been found that a different load pattern affects the formation of the plastic region and also the position of the plastic collapse point.
The mechanical properties of tested materials are listed in Table 1.
Mechanical properties tested materials.
Result and discussion In the general equation of the stress in plastic collapse condition that it was defined in this study, the collapse limit curve is obtained substituting shape factors of a specimen.
In this case, the tension as second load is the dominant factor in the plastic collapse.

Films can be electroplated with excellent magnetic properties and plating cells are relatively inexpensive.
Recently, much attention has been paid to the study of nanocrystalline nickel - iron alloys due to their interesting mechanical and magnetic properties [2,3].
Coercivity is a factor that describes how hard or soft a magnet is.
The plating current densities influence the grain size, composition, and consequently affect the magnetic properties of the plated layer.
Nickel-iron films showed excellent soft magnetic properties with high saturation magnetization.