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Establishment of multi body system The all component s in the transmission module are connected into the mechanical system through the corresponding Kinematical pair or other ways, and the mechanical system is called multi body system.
The material properties of the parts: the material in the bearing, the axis, the transmission shaft, the shaft of the motor, the shaft of the belt wheel is steel, and its density is 7800Kg/m3; the material of the belt wheel is aluminum, and its density is 2700 Kg/m3.
Angular speed of Belt wheel shaft Conclusion LED placement machine belongs to the optical electromechanical equipment with the high precision and high speed, its drive form are the key factors that affect the final performance of the equipment.

a lxp810525@163.com. bdgzhou@njfu.edu.cn cswang@utk.edu Keywords: Castor stalk, Wood based panel, Thickness-swelling (TS ), Wax emulsion Abstract: Castor-oil stalk is one kind of excellent woody materials, and the thickness swelling ( TS ) of the castor-oil stalk based panel with Urea- formaldehyde resin ( UF ) cannot meet the requirement of the Standard of People’s Republic of China. the TS of the panel was improved with wax emulsion.Results showed that the mechanical properties and the TS of the particle panels were improved as the wax emulsion loading increased.
The properties including internal bonding strength (IB), the modulus of elasticity ( MOE ), the static bending strength ( MOR) and thickness swelling (TS), and the results shown in table 3.
Results and discussion The influence factors of the TS of the wood based panel Table 2 shows the TS of different wood based panel with different resin and materials made by different techniques .
It isbecause that it can generate the function rejecting water when the MDI resin react with woody materials, and the PF resin itself has excellent waterproof properties [13].
The relationship between the properties of the panel and the wax added emulsion were shown in Fig.4- 7.

The first function is to select the sensitive design variables by comparing the ratios of the mechanical performance sensitivities and mass sensitivity of the manipulator.
The sensitivities of some significant mechanical properties are performed for the design variables, which are listed in Table 1.
Thus the major variables which have an important influence on the mechanical properties and a relatively insignificant affect on the mass can be found.
Fig.5 Evolutionary history of the bending deflection in the design process Table 2 Optimization design results Mass[kg] bending deflection[mm] Equivalent stress[Mpa] Strain energy[mJ] Inherent frequency[Hz] Initial value 74.211 1.3139 20.007 44.281 130.47 Optimization result 67.464 0.6699 15.398 42.744 120.631 Comparing the optimization result listed in Table 2 can show that the mechanical properties of the manipulator are greatly improved; meanwhile, the mass is reduced to 67.464kg from 74.211kg in original, a decrease of 9.1% which realize the lightweight of the manipulator.
Through the mechanical testing of the inner-wall grinding robot in its actual working process, it can be detected that the manipulator is subjected to a load changing as sine wave with time.

(a) Initial position, (b) intermediate phase, (c) Springback Mechanical properties of the tested material are provided in Table 1.
Major mechanical properties of S500MC steel Material Lemaître's model E[Mpa] ν σy[Mpa] K[Mpa] n ε D εR Dc DR 2.10E5 0.28 560 800 0.745 0 0.35 0.21 0.99 After having bent all the specimens, visual observations and measurements of the geometry were made to evaluate springback thanks to projector of profile Sagem-p500-67N524 (Fig. 2).
A full factorial design of tow factors is carried out by varying the design parameters and analysing the response related to the springback.
From practical point of view, it should be noted that net-shape parts can not be obtained easily with good geometrical properties in wiping die bending process for positive relative punch-sheet clearances.
Tekiner: An experimental study on the examination of springback of sheet metals with several thiknesses and properties in bending dies, Journal of Materials Processing Technology Vol. 145 (2004), p. 109-117

A correlation between surface properties and adhesive bonding strength was investigated.
Factors such as type of adhesive, type of adherents, pressure for bonding, bonding length, bonding thickness and surface preparation for bonding plays an important role in enhancing the bonding strength in between two composite structures.
In the present work, we investigated how the surface treatment affect the bonding quality.
The properties such as such as lap shear strength, the surface roughness and the surface composition were under investigated.
Summary The adhesive shear properties of the laser surface-treated composite were studied in this paper.

The strength of honeycomb structures along with resistance to service temperature and cost are the most essential factors in selection of brazing alloy.
One of the problems associated with the use of these alloys, is the formation of brittle phases within the joint area which affects the joints properties [5, 6].
The objective of the present investigation was to study the microstructure and mechanical properties of the brazed joints using BNi-2 filler metal.
These brittle phases reduce mechanical properties since crack initiation can occur in these locations.
J.,1998 , 77, No. 2, pp. 66s 75s. 5- Okuto K, Namba K, Mizukoshi H, Hiyama Y," The analysis and design of honeycomb welded structures",Light Met Welding,. 1991,pp.569-985. 6- Rabinkin A,"Overview: Brazing with (NiCoCr)-B-Si amorphous brazing FMs: Alloys, processing, joint structure, properties, applications", Sci.

Design Principles of Controlling Vehicle Gear Whine Noise Based on Loudness Metric Dong Guo 1,2 a, Quan Shi 2,b , Wenli Li 1,2 c, Chuanhe Xu 2,d 1College of Mechanical Engineering, Southwest Jiaotong University, Chengdu, 610031, China 2 Key Laboratory of Advanced Manufacturing Technology for Automobile Parts, Ministry of Education, Chongqing University of Technology, Chongqing, 400054, China acgguodong@163.com, bsq@cqut.edu.cn, cliwenli999@163.com , dxuchuanhe13@126.com Keywords: design principle; vehicle; gear whine; loudness Abstract.
Introduction Interior vehicle noise is an important factor affect the ride comfort.
Absolute threshold curve shows a distinct valley around 3-4kHz and a peak around 8-9kHz ,which means sounds in these ranges are more detectable.Pure tone case is suit for study one pair gear whine noise.For two tones,the frequency and magnitude difference between the two tones is the main factor which affect the human perception.The human hearing system is thought to contain a bank of band-pass filters with over-lapping pass-band.
It should be noted that, all the signals have nearly the same sound pressure level by controlling the signal magnitude an Pure Tone Based on equation(2) and gear noise property, we generated three pure tone noise of 500Hz,3500Hz and 8500Hz, which represent different human hearing sensitivity range.
Specific loudness results of two tones 3500Hz is 400Hz with 3500 Hz in the center.For this case,we generate 3600Hz which is in the bandwidth range of 3500 Hz.Based on equation(3) and gear noise property, we generated four signals with two different frequency components.

Thus it is possible to control and improve the properties of the material by using the orientation effect originated from the textures.
Samples were cut by an electro discharge machine and the surfaces were polished by the mechanical polishing.
In this study, although the origins of the effect of α on recrystallization texture is not clear, there are two factors to be considered to understand the change in the orientation by the α precipitation.
In the case where α precipitation at these preferential sites precedes the recrystallization, the recrystallization behavior is strongly affected by the precipitation in the present alloy.
This is due to the precipitation of α phase; the α phase precipitation strongly affects the recrystallization texture in this alloy.

HA and PLL have been classified as weak polyelectrolytes; their physicochemical properties can be affected by pH and ionic strength of the surrounding medium [17].
HA/PLL films have shown efficient properties for delivery of growth factors, such as bone morphogenetic protein 2 (BMP-2).
Wcislo-Dziadecka, Physiochemical properties and application of hyaluronic acid: a systematic review, J.
Klitzing, Effect of environmental parameters on the nano mechanical properties of hyaluronic acid/poly(l-lysine) multilayers, Phys.
Barrett, pH-Responsive Properties of Multilayered Poly(L-lysine )/Hyaluronic Acid Surfaces, Biomacromolecules. 4 (2003) 1773-1783

Modulation of the metallic oxide properties through of soft chemistry techniques for several applications Altamirano-Juárez, D.
Typically insulating materials in the micro scale became conductive materials due to the domain of the quantum mechanics in their properties.
However, the evaluation of electric and electronic properties is even more important, because they are associated strongly to the morphological and structural changes.
Dimova-Malinovska: Functional Properties of Nanostructured Materials (Springer Netherlands, Vol. 223, 2006) [15] D.
Bube: Photoelectronic Properties of Semiconductors (Cambridge University Press, Cambridge, 1992)