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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.

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.

Mirzazadeh1,b Department of Mechanical and Mechatronics Engineering, University of Waterloo, 200 University Ave.
Their respective chemical compositions and mechanical properties are given in Tables1and 2.
Chemical Composition % C Mn S P Si Cu Cr Mo Ni V AISI 1141 0.39 1.41 0.12 0.01 0.24 0.05 0.1 0.01 0.03 0.06 AISI 1151 0.51 0.85 0.11 0.04 - - - - - - PF 0.50 0.31 0.12 - - 3.06 - - - - C70S6 0.72 0.5 0.065 0.009 0.22 - 0.061 - - 0.04 Table 2.Mechanical properties Material Yield Strength (MPa) Tensile Strength (MPa) Elongation (%) Reduction of Area (%) AISI 1141 575.7 855.0 17.0 39.0 AISI 1151 930.8 999.8 12.0 31.0 PF 565.4 889.5 15.0 30.0 C70S6 575.7 1006.7 13.0 27.0 The specimens were machined with a gauge section of 62 mm x17mm x 2mm and a generous 22mm shoulder radius.
Surface roughness caused by shot-peening was not a large factor in controlling the balanced uniaxial push-pull fatigue lives of the steels investigated. 2.
Shot-peening negatively affected the fatigue properties of a quench and tempered AISI 1151 steel subjected to uniaxial push-pull cycling.

The findings show that geometric ratio is the major factor in the process of squaring circular tubes.
Introduction The square-tube made by piercing or extrusion would produce the non-uniform property in the transverse direction due to the shear deformation in shaping.
The findings show that geometric ratio is the major factor in the process of squaring circular tubes.
Table 1 Material properties of tubes for FE simulation Material [2] Heat treatment n K / MPa σ0.2 / MPa Hard copper As received 0.05 450 280 Soft copper 400℃, 1h 0.46 610 50 , E = 135 MPa, ν = 0.34, σ0.2: yield stress by the offset method.
For the squaring defects of collapse being affected by various process parameters, the simulations for exploring the effect of geometric ratio R/t on the occurrence of collapse were carried out as shown in Fig. 2(d).

Furthermore, the possibility of improving manufacturing technologies of new substances with improved physicochemical properties in connection with the maintenance of their cleanliness is also an urgent task.
Under the influence of an electric field the displacement of the molecules is caused in the direction of greater field strength, due to the action of ponderomotive forces, which are forces of mechanical nature.
This is due to the emergence of mechanical motion in liquid dielectrics under the influence of an inhomogeneous electric field.
Conclusion When we consider the processes occurring under the action of electric field in dielectric liquids, it is necessary to consider such factors as: the physico-chemical nature of fluids, properties of electric field, properties of hydrostatic and hydrodynamic fields.
In addition, the dielectric fluid has a complex structure, which forms the topology of the electric field and affects its distribution in space.

However, There are a number of factors in stretching process that affect the stability of the quality of formed part, including complexity of the parameters, sports of the process, overstretching and nonuniform stretching.
Among those factors, overstretching and nonuniform stretching are most vital.
MRSF Concept and FE Model Description of the multi-roll stretch forming process.As shown in figure 1, this core mechanical structure in MRSF flexible machine is composed of two rows of flexible rollers, four rows of flexible clamps and a die.
The relevant mechanical properties are: yield strength sy = 75.3 MPa, Young’s modulus E = 40.49 GPa and Poisson’s coefficient μ= 0.33 and density ρ= 2720 kg/m3.
Fann, "Prediction of the final part properties in sheet metal forming by CNC-controlled stretch forming," J.

Stay ropes are affected by the environment.
The cross-sectional shape of a stay rope affects its resistance to wind loads.
Paper [33] analyzes mechanical properties of composite materials reinforced by a longitudinal framework of rigid elements.
Not significantly lower maximum loads on reinforcing elements, in a case of using stay ropes with a larger number of reinforcing fibers, indicate a feasibility of using the latter, provided there are no other factors.
DOI: 10.1016/j.ijsolstr.2018.10.023 [28]  Xianguo Li, Xinyu Long, Zhenqian Shen and Changyun Miao (2019)  Analysis of Strength Factors of Steel Cord Conveyor Belt Splices Based on the FEM Advances in Materials Science and Engineering Volume ID 6926413.

Considering synthesis of different vibration factors, the signal obtained must be unstable and nonlinear muti-component signal.
And different non-stationary features indicate different forms of mechanical fault.
Unique periodic stability of itself make record collected each time has a property of document traversal, which is good for analysis and processing combined with local situation.
Mechanical Science and Technology, 23(2) (2004) 221-223
Mechanical systems and signal processing, 14(3) (2000)371-385

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.

Research on Mechanism of UPM-PECM Compound Finishing The UPM-PECM compound finishing, which is a combined machining technique consisting of pulse electrolytic action and ultrasonic polishing machining, uses mechanical vibration of supersonic frequency in the ultrasonic wave and pulse electrochemical machining, accompanied with machining tool as cathode and workpiece as anode and high-speed flowing electrolyte containing many mill grains existing between tool and workpiece.
To simplify the Eq.4, if 2 5 6 5 3 5 2 2 0 1 1 2 1 1 2 2 2 4 1 1 4 5 3 4 f V A E E V ρ ν ν πρ ρ −     − −   = +            , A is consistent when the feature of mill grain, machining material and electrolyte medium are determinate: ( )6 5 2 0 h P AR A e α− = （5） The length LC and depth hC of transversal crack of hard and brittle metal material are [6,7]: ( )3 4 1L C C P Kξ= （6） ( ) 1 2 2hC P Hξ= （7） Where 1ξ, 2ξ are proportionality factor, and CK , H are fracture toughness property and hardness of machining workpiece material desperately.
The total removal quantity M in UPM-PECM compound finishing from Eq.3 and Eq.9 is: ( ) ( ) 12 5 1 4 1 2 0 0 p R h p e t UZ M K h K NBR A e nF t t R α λη − − = + + （10） Where 1K and 2K are proportionality factor, and 11K > and 2 1K > .
Research on factors affecting machining quality of pulse electroch- emical polishing [J].
China Mechanical Engineering, 2005,16(8),p. 664 -666(In Chinese)