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Introduction The drum washer’s Vibration has many hazards:Firstly,the Vibration easily lead to structural fatigue damage, or even an accident; Secondly, it will affect bearing life and the drive motor’s performance ; Thirdly, the vibration waste energy and has an effect on the effect of washing;Last but not least, the roar of vibration seriously affect the living environment and harmful to people’s health.
Therefore, we should reduce vibration. ⅠThe Comparison of The Modeling Method Commonly used methods of vibration analysis: Mechanical Impedance Method, this method is suitable for solving the single degree freedom system’s steady-state response.
Four-terminal parameter method Schematic Ⅲ Basic Structure of The Drum Washing Machine and The Mechanism of Vibration The drum washer’s three-dimensional solid model[2,3] of the outer tube: Important factor affecting the vibration : Internal drum, external drum, drive motors, pumps and damping devices (Suspension springs, damping devices and viscous damping buffer).
In the design of vibration reduction devices, antivibration block quality and the shape will be taken into account. reduce the elastic damping the damping factor suitably.
Design and research of modular machine tool and automatic processing technology, 10 (2008) 4-7 [5] Sang-Gil Park, Ho-San Kim, Hyoun-Jin Simand Jae-Eung Oh,Multi-dimensional spectral analysis of the noise contribution from adrum washer with a dehydrating condition,J.Journal of Mechanical Science and Technology, 22 (2008) 287-292

Conversion factors, which are calibrated for each different recipe, are used for comparison of tests.
Dogbone specimen, mechanical fixation.
The values of strengths and conversion factors after macrocracking are shown in Table 3.
The unambiguous trend of dependence of the conversion factors on material strain was not observed.
Tipka, Tensile Properties of Structural Fibre Reinforced Concrete, Ph.D.

Damages to boilers may be caused by numerous factors.
Among the most important the following may be found [4, 5, 6, 7, 8].: mechanical damages, uniform corrosion, electrochemical and pitting corrosion, the loss of mechanical strength, the loss of material plastic properties.
Small amount of sulfur (Fig.9) does not influence in this case materials properties.
A very important factor affecting the initialization of the pitting corrosion process are non-metallic inclusions.
Zagorski Corrosion and electrochemical properties of the steel of exploited oil tanks in bottom water, Materials Science, N 1, pp.126-132 (2008)

Both storage technologies lead to mechanical or thermal stresses within the material.
EDS analyses reveal the existence of micro-segregation, which could affect the local properties in respect to the AusStab.
In this context, the local chemical composition is a significant factor in terms of the susceptibility of austenitic steels against HEE.
Figure 2 shows property maps of Md30, Nieq and ΔGγ→α.
Weber, Impact of chemical inhomogeneities on local material properties and hydrogen environment embrittlement in AISI 304L steels, International Journal of Hydrogen Energy, (2018) steels, International Journal of Hydrogen Energy (2018)

Finite element analysis of mechanics property on memory alloy patella claws with anti-shearing force Du dong-peng1, Wu zhe2,a, Xing juan1,b, Gong xiao-yan2, Miu xiang-wen3, Yuan cheng-long3 1Department of Orthopaedic Surgery, San Ai Tang Hospital, Lanzhou, 730030, China 2School of Mechanical Engineering, Xi'an University of Science and Technology, Xi'an, Shaanxi 710054, China 3LanZhou Seemine memory alloy Co., Ltd., Lanzhou, 730030, China awuzhe7244@126.com, bxingjuan83@163.com Keywords: anti-shearing force; patella claw; patellar fracture; finite element analysis Abstract When strong exercise on human being body, respectively, under knees 30°, 60°,90°, using PRO/E5.0 software to establish the transverse patella fracture and anti-shearing force patella claws 3D models, then the two structure models were assembled and imported into ABAQUS10.1 software to establish the finite element model of patellar fracture fixed within patella claw, and analyzed the mechanical performance
We used related softwares to establish the finite model and analyzed mechanical properties.
In the course of human knee flexion, the patella is mainly affected by quadriceps tension F1, patella tendon tension F2 and patellar force FQ.
In short, when in the course of the human body vigorous exercise, knees angle were different, compared with the study result of the reference [6], patella claws deformation was much smaller than the AO tension band, in view of this, the mechanical properties of patella was superior to the AO tension band.
Table 2 Stress parameters of the patella in different knee angel[12] Knee angel 30° 60° 90° Quadriceps tension F1（N） 120.36 116.16 135.09 Patella tendon tension F2（N） 129.77 93.19 54.03 Patellar force FQ（N） FQ2=5G=3675 Patello-femoral joint contact area S（mm2） 450.5 596.26 701.06 Patellar force representing the rate of body weight K 0.086 0.145 0.204 a. knee angel=30° b. knee angel=60° c. knee angel=90° Fig. 4 Contour plot of displacement of patella claw a. knee angel=30° b. knee angel=60° c. knee angel=90° Fig. 5 Contour plot of displacement of the fixed model Conclusions Currently, the finite element method has been widely used in biomedical applications, especially in the study of clinical surgical technique factors on the impact of stress and strain distribution equipment, had its unique advantages[12].

The factors contributing to raw soil construction’s bleak prospect are that architect rarely focus on the rammed earth buildings and lack of people to participate in construction system.
The randomness of materials selection The mechanical properties of rammed earth wall mainly affected by the composition, chemical constitution, particle size distribution and physical properties of the earth.
An other example, if some leaves and seeds mixed with the raw earth used in rammed walls, it will affect the strength and stability of the walls.
However, under current condition, these three factors are all scarce, especially for the appropriate techniques and specialized design.
The factors contributing to raw soil constructions’bleak prospect are that architect rarely focus on the rammed earth buildings and lack of people to participate in construction system.Architect and engineer should pain more attention to raw soil buildings.

Ultrasonic wave can use as a powerful tool for finding properties of microstructures [3, 4] but in welding, this method is used to determine location of internal and surface flaws in welded section, base metal or heat affected zone and measure their length and depth.
In ultrasonic NDT main parameters affect on the probe position are thickness, acoustic properties, couplant, probe types, welded joint geometry and beam index point.
With use of above factors the software can determine moving range according to confidence coverage all of the welding zones.
The main section of software consists of five submodules: 1- Thickness selection and entering angle probe properties 2- Material selection and couplant with ability to change of acoustic properties 3- V type weld geometrical parameters 4- Graphical and numerical outputs 5- Help guide Figure.5 Parts of PPDUT software.
Gur: Determination of properties of SiC Reinforced Aluminum metal matrix composites by Ultrasonic Techniques (Proceeding of 15th World Conference on Non-Destructive Testing, Rome, 2000)

Unidirectional reinforces carbon fiber materials are more effective if refer to specific properties per unit volume compared to conventional isotropic materials.
So it is more important to understand short fiber reinforced composites mechanical properties, which depend strongly on the interfacial bonding between fiber and matrix.
Variables such as the volume fraction, aspect ratio, tensile strength, orientation of the short carbon fiber as well as the interfacial strength are of primary importance to determine the mechanical properties and tribological behaviour of these composites [3,4,5,6,7].
A point of interest in composites is their ability to transfer stresses across the interface, properties that is related to a complex combination of factors such as surface energy of the reinforcing phase, adhesion strength, number of stratified layers, fiber orientation with respect to the external action.
Influence of fiber volume fraction on the mechanical and thermal properties of unidirectionally aligned short-fiber -reinforced SiC composites.

Material properties: Referred materials of the assembly body of conical pick include carbide tip material YG11, body material 40Cr, handle material 15CrMo, and the Mechanical property parameters of these materials are shown in Tab.1.
Material YG11 have many excellent properties, such as high strength, toughness, abrasion resistant, heatproof and so on.
Material 40Cr have good comprehensive mechanical properties, good toughness of low temperature impact and low notch sensitivity.
Therefore, the finite element method to analyze its structure and mechanical properties.
According to the actual rock properties, three directional forces can be calculated based on Equation.1 and Equation.2., there are cutting force 10.4kN, feed force 5.2kN and side force 4.2kN.

The success of dental implants is influenced by several biomechanical factors such as loading type, used material properties, shape and geometry of implants, quality and quantity of bone around implants, surgical method, lack of rapid and proper implant surface's integration with the jaw bone, etc.
In this regard, in an article, Boggan et al. [12] in 1999 discussed the impact of design factors such as platform diameter and implant connection height on the mechanical strength and decent quality of the fixture and abutment interface.
One of the most important factors in implant placement in the jawbone depends on the factors that affect the joint.
Kern "Implant–abutment interface design affects fatigue and fracture strength of implants." 
Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, (2020)