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All the facts above affect the safety of construction and the performance of building.
Mechanical Model of Multilayer Template Support System A sample of the support system. 4.1 A overall introduction of the project This project is located in China which reaches twenty-two floors with twenty stores above the ground and two stores beneath the ground as well as a height of 65.2 meters.
Summary It is an extremely job to fulfill a support system and various factors need to be taken into consideration such as the property of the materials, shape and structure, space as well as the components of the construction.

Meanwhile, the composite ceramic of SiC -TiB2 has good electrical conductivity, so that remedy the week of electrical conductivity of SiC ceramic and increase its mechanical performance.
In the meantime, it has well application of electrical technology because of its excellent electromachining property [1].
Measurement of properties.
A lot of factors affect the bending strength, and porosity is the main defect of the vast majority of ceramic [3].
Another important factor which determines the strength is grain size and quantity.

Fault Diagnosis of Wet-shift clutch Based on STFT and Wavelet Chen Man1,a, Ma Biao1,b 1 School of mechanical and vehicle engineering, Beijing Institute of Technology, Beijing 100081, China chenman2010@foxmail.com mabiao@bit.edu.cn Keywords: wet shifting clutch, STFT, wavelet analysis, fault diagnosis, online processing Abstract.
Figure 1 The structure of wet shifting clutch Usually the processing, assembly, and other factors may cause relatively minor degree of initial deformation of the friction plate, which may result in the uneven contact in the sliding process, and it is easy to lead to the local overheating of the friction plate.
Affected by irregular deformation of the contact surface, the contact should be a short-lived collision slipping process, and the collision factor is dominant [3].
The failure state of transmission device in practical application is relatively complex, there may be the collision excitation caused by other factors, which may also cause similar high-frequency signal, then it is unable to effectively identify the failure only with the vibration signal STFT analysis at any time.
The method of changing the shape of the time-frequency window may be used for the wavelet transform, the overview and details of the signals may be observed with different resolutions; there are very good localization properties in both the time domain and frequency domain, so it is suitable for detailed analysis with the collision signal.

Various industrial hot-deformation processes like extrusion, rolling, and forging introduce structural changes that affect the mechanical properties during processing and after cooling to room temperature.
This work applies the nano-structure model NaMo to simulate hot-deformation in experiments using a Gleeble thermal mechanical simulator.
These analyses provide detailed insights into the resulting precipitate and dislocation structures following hot deformation, enhancing the understanding of how these microstructural changes influence mechanical properties.
This is considered a fair approximation since the factor μT/μ0 is close to 1 for T=298K, at the same time as the inner bracket in Eq. (1) is close to 0 at this temperature, except for very low strain rate.
Both simulations and measurements show that temperature variations affect the yield stress more than variations in strain rate.

Besides, the high temperature and large temperature gradient of the structure, caused by the transient thermal environment arisen from the aerodynamic heating, could not only degrade the material properties of the structure, but also bring about non-uniform thermal deformation and thermal stress inside the structure [5].
The above factors will all exert great influences on the natural vibration characteristics of the structure.
Besides, such mechanical and thermal parameters are all the functions of temperature as elastic modulus, linear expansion coefficients, thermal conductivity and specific heat capacity.
The corresponding subcases to the above decay factors are respectively called as Subcase B1, B2, B3, B4 and B5, and the the first four modal frequencies under each Subcase at 100s are specified in table 2.
Conclusion This paper explores the natural vibration characteristics of wing structures under aerodynamic heating, and makes investigations on the impact of different factors on the natural vibration characteristics.

There are plenty of effect factors in comfort of construction machine cabs.
The isolation design is directly affected by cab’s mass properties, such as cab’s mass and the position of center of mass.
In order to get the accurate mass properties, the accurate geometric model of cab is directly imported from ProE to ANSYS.
The material properties are assigned respectively, including elastic modulus E=2.1×105MPa, Poisson ratio λ=0.3, and density ρ=7.85×103kg/m3.
In this article, cab’s modal analysis is proceeded initially and nonlinear factors of the silicone-oil-sealed-type rubber mounts are not considered.

Assuming linear stiffness and damping properties, the suspension forces are derived from: (5) where ksi and csi are stiffness and damping coefficients of the suspension at axle i(i=f, r), and f and r refer to the front and lumped rear axles, respectively. zui is vertical deflection of the unsprung mass i.
The equations of motion for the unsprung masses, muf and mur, describing the vertical motion (zui, i=f, r) can be expressed from the suspension and inertial forces, such that: (6) where Fzti is vertical force due to tires on the ith axle, which are obtained assuming flat road surface and linear stiffness and damping properties.
The tridem axles are lumped to a single composite axle assuming identical properties of each axle.
Figure 7 illustrates variations in force amplification factors for the 50%-filled cleanbore tank subject to lateral harmonic excitations of different amplitude at various frequencies.
The responses can thus be interpreted as the amplification factor arising from dynamic slosh effect.

In particular, friction is a very influencing factor in Tube Hydroforming (THF), where high die-part contact pressure and area make the material sliding very difficult.
This technology is characterized by tooling and assembly costs reduction and by part mechanical properties, weight and dimensional accuracy improvement [1-3].
The most important parameters that influence the results in tube hydroforming are the optimal combination of the internal pressure and axial feeding vs. time, the sheet and the tube material properties and the friction between workpiece and die [1]. 1.
The dies are closed by a mechanical locking system.
Moreover, the use of an average value for mexp does not affect the results and allows to overcome the results scattering.

Qi1 1Tianjin Key Laboratory of High Speed Cutting & Precision Machining; Tianjin University of Technology and Education; Tianjin 300222; China 2College of Mechanical and Electrical Engineering; Nanjing University of Aeronautics & Astronautics; Nanjing; 210016; China awghuo@163.com Keywords: Titanium alloy, Belt; Dry grinding, Worn flat, Protrusion height, Surface topography Abstract.
Unfortunately, the unique physical and chemical properties that make these alloys suitable for many applications also contribute to the difficulty with which they are cut or ground.
During grinding using abrasive wheels, which has been one of the most popular processes for titanium alloy, short wheel life and severe surface abuse of ground workpiece are the most important among the factors impairing their grindability.
It is especially important to understand how the wear phenomena affect the belt topography.
The grinding surface and high surface hardness, the grinding affected zone is small.

Surlfur may also undermine the mechanical property of iron-base alloys, and especially degrade their fatigue limit and abrasive resistance significantly, which affects the lifespan of iron-base alloys.
However, limited by many factors such as blank, instrumental sensitivity, and lack of low sulfur standard samples, sulfur detection has long been the subject of the exploration for years.
Jiang Qicui [3] discussed the factors to affect the detection repeatability and accuracy, when conducting detection of trace sulfur in steel by using high frequency combustion infrared absorption method.
Jiang Xiumei et al. made research on the influential factors of coulometry method for detecting sulfur, and proposed corresponding optimization method.
[26] Li Yuangui, Liu Yuying, Zhang Ping．Shangdong Mechanical[J], 2000, 36(3)：37-38