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Supporting bearing and spindle span are the two major factors that influence the spindle's low order modal characteristics, which embody a concentrated reflection of the dynamic characteristics, and directly affect the accuracy of the whole machine accuracy.
Its material properties are shown in Fig. 5.
The material property [4] of the bearing is shown in Tab.1.
Table.1 Material Properties of bearing Material Density Elastic modulus Poisson’s ratio Bearing GCr15 steel 7800kg/m3 1.99х1011 0.269 Rolling body Si3N4 3440kg/m3 3.2х1011 0.3 By processing the holder can be seen using the cutting tool for drilling and boring compound tool.
Hand book of mechanical design [M].

Introduction The rehabilitation or strengthening of reinforced concrete can increase bearing capacity and lessen the deflection when the bearing capacity and deflection of the concrete beam are insufficient which can be due to any of the following factors including: incorrect selection of materials, errors in design calculations and detailing, poor construction methods and inadequate quality control and supervision, chemical attack, and external physical or mechanical factors.
Material properties of CFRP laminates used to strengthen concrete beams are indicated in Table 2.
Material properties of CFRP laminates Theoretical thickness (mm) Elasticity modulus (GPa) Tensional strength (MPa) 0.111 220 3750 Prestressed CFRP Pressure distribtion beam Deflection gauges Deflection gauges Deflection gauges Hydraulic jack Reaction force Fig. 1 Measure scheme of test Figure 2 shows the device used for the application of prestress to the CFRP laminates.
Comparison of structure capacity by specimen Specimen Initial cracking load (kN) Failure load (kN) Spacing of cracks (mm) Modes of failure L1 16.5 64.7 135 Steel yielding L2 17.6 80.1 112 Concrete crushing L3 26.1 85.6 80 Concrete crushing Fig. 3 Comparison of the crack of the L2 and L3 beam (the left is the crack of L2 ) One of the important factors that affect the serviceability of a RC flexural member is its deflection.

Hardened and durability properties of a 30 MPa concrete designed using CPM method is being investigated.
Inspite of achieving the required strength, concrete exposed to various chemical species owing to the diverse environmental factors makes it vulnerable [6,7].
Physical properties of natural and recycled aggregate.
Physico–mechanical properties of multi–recycled concrete from precast concrete industry. 
Multiple recycled aggregate properties analysed by X-ray microtomography. 

The authors conclude the regular of the properties of composites varying with PZT volume fraction.
In addition, it is easier to improve the properties by changing PZT or polymer volume fraction.
In this paper, the regular of properties of composites varying with PZT volume fraction will be researched.
Its detailed properties are shown in Table 1.
Table 1 Properties of PZT672 Material PZT-672 Q value 247 Electro-mechanical coupling factor Kt 0.48 The quasi-static capacitanceCp(pF) 1754 DepletionD(mU） 15.5 Relative dielectric constant 3818 Piezoelectric constant d33（pC/N） 550 PZT672 were cut by automatic scribing machine(DISCO DAD321).

And then variation of shear angle and friction angle affect the values of force coefficients.
Almost all titanium alloy monolithic components in aerospace industry are manufactured by milling process, and cutting force is one of the most important factors that influence the machining efficiency and surface quality.
Fang [15] investigated tool-chip friction in machining with a large negative rake angle tool and found that an increase in the tool-chip friction factor increases the friction angle.
In this paper, assumptions are listed below: a) Tool edge radius is zero. b) In the cutting process, the influence of the inertial force caused by the material deformation is negligible. c) The mechanical properties variation of the material caused by the cutting temperature is negligible.
Shear angle and friction angle determines the force coefficients, therefore, variation of feed per tooth will affect precision of cutting force prediction.

Study on composite technology and properties of Al/Fe bimetal composite in automobile engine cylinder.
"Microstructure and Mechanical Properties of Overcast 6101-6101 Wrought Al Alloy Joint by Squeeze Casting." 
"Effects of zinc coating on interfacial microstructures and mechanical properties of aluminum/steel bimetallic composites." 
Preparation and Mechanical Properties of 7075/6009 Aluminum Composites with Gradient Interface.
"The effect of process variables on mechanical properties and microstructure of Al6061 and Al7075 in friction welding connection." 

Introduction TWIP (twinning induced plasticity) steel is one of the advanced steels for automotive use because of the attractive mechanical properties at high strain rates.
Most of the studies have focused on the improvements of the chemical composition and the modeling of the mechanical properties, while the research works concerning the relationship between the microstructure and the mechanical properties is limited [6,7,8].The authors [7,8] have been reported the effect of the grain refinement on the tensile properties and have been clarified that the ultrafine grained TWIP steel exhibits a large work hardening and keeps an adequate elongation at any strain rate.
The aim of this study is to clarify the mechanical properties at wide range of strain rate in the TWIP steel with the mixture of ultrafine deformation structure and the ultrafine grained structure.
When using the thermal activation theory, the applied stress should be separated to internal stress with no contribution of the thermal activation and effective stress affecting the thermal process.
Consequently, the result of this study indicates that the intermediate mixture of the nano-structured deformation structure and recrystallized fine grains should be required for the preferable mechanical properties.

Introduction There are a number of ways to measure the formability and mechanical properties of a material system.
Intrinsic tests measure the mechanical properties of a material which can then be related to the formability.
These tests provide a range of mechanical properties that are independent of the material thickness and surface condition.
The aperture and shutter speed directly affect the exposure of the image, as does the lighting conditions.
A compromise between these factors was found for this project in the following way.

The rheological properties of MR fluid were characterized using rotational and oscillatory shear rheometer.
Rheology Properties.
Viscosity is one of the significant values in rheology properties of MR fluid.
Carlson, “Properties and Applications of Commercial Magnetorheological Fluids,” J.
Carlson, “Critical factors for MR fluids in vehicle systems,” Int.

Most of the researches compared the circular cylinders with other disturbed components on the heat transfer effect and analyzed the factors which can affect the heat transfer effect.
Conversely, it will greatly affect the overall heat transfer.
So the water drop-shaped column array is a promising configuration with comprehensive properties and can replace the normal circle-shaped column.
Xueli Leng[10] discussed the thermal property of vibration pipe and did the experiment on heat transfer properties of the vibration pipe when fluid passes by it slowly.
And the ways of studying on its influencing factors are mostly through numerical simulations and experiment.