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Design and Study on Mortar Pump's Impeller Based on Bezier and Mechanical Mechanics MingXin Chen1,a, LingFeng Tang1,b, Ge Zhou2,c, ZhongYing Dou3,d, XiaoLi Yang3,e and XiaoYang Du3,f 1College of Mechanical and Automotive Engineering, Anhui Polytechnic University,Wuhu Anhui 241000 China 2National Center of Supervision and Inspection on Auto Parts Products Quality(Wuhu),Wuhu Anhui 241007 China 3Chery Automobile Co., Ltd ,Wuhu Anhui 241009 China acmx1215225@163.com,bwymtlf@126.com,czhou__ge@126.com, ddouzhong_ying@163.com,eyxiao_li@163.com, fduxiao__yang@163.com Keyword: Expansion of the blade profile; Bezier Curve; Mechanical mechanics;Numerical simulation;Performance Abstract.
factors to improve the shape of the blade profile need plenty of operations and observations to determine the satisfaction value.This makes the operation fussy and it is blindfold.this method is difficult to concentrate the influential factors overally , and it can't avoided the appearance of "S" shape.
The blade angle is an important factor of the blade geometric parameters.the decrease of the adverse pressure gradient in the blade duct is beneficial to the energy exchange of the blade and the fluid .Increase the blade Angle can effectively reduce the blade duct's diffusion and the adverse pressure gradient, restrain the superficial flow of the blade Angle , but if the Angle is too large, the friction loss between the blade and the fluid will increase [1].YangHua has taken a numeric simulation test for the centrifugal pumps who have different blade Angles , and the results show that when doing the blade modeling design for the impeller in the same size , there exist the best blade Angle[2].Li Yue has studied the low specific speed sewage pump blade Angle's influence to the hydraulic properties, and the results show that:when the blade Angle is changing,the pump's efficiency exist a high value point, and the high efficiency blade Angle correspond to the law that the low specific speed
This curve's properties are as follows[4]: (1) P(0)=P0,P(1)=Pn.Namely: the tangent direction of the starting point and the end point of the curve is equal to the characteristic polygon's first and final side's direction; (2) Symmetry:The curve which is composed of the Pi and the Pn-i has the same position but opposite direction; (3) Envelope sex:Pn(t)=(1-t)Pn-1(t)+tPn-1(t); (4)Convex hull: The Bezier curve is surrounded by the control polygon's convex hull Using the Bezier Curve to Draw the Expansion of theBladeProfile Confirm the Main Parameters of the Pump.
Mechanical Performance Comparison of Traditional Impeller and Modified Impeller.

There are several interesting advantages of MMCs like possessing homogeneous mechanical properties, economical in cost and feasible processing techniques when compared to that of conventional engineering materials.
The front runner of the aforementioned factors deciding the physical, chemical and mechanical properties of the proceeds composite material is the volume/weight fraction of the particulate reinforcement.
The SEM analysis and the error profile analysis predict the presence of porosity in the composite affecting the mass calculations.
[5] Mohammad Azadi, Mohammad Zomorodipour, Abdoulhossein Fereidoon, Sensitivity analysis of mechanical properties and ductile/brittle behaviors in aluminum‐silicon alloy to loading rate and nano‐particles, considering interaction effects, Engineering Reports, 2020
Geometric factors affecting the internal stress distribution and high temperature creep rate of discontinuous fiber reinforced metals.

Assuming friction factors at different position of engagement are same and convection transfer rates of the tooth face and head face are same too.
The polyurethane material has low mechanical properties and will be easy to failure at 100℃ temperature [9-10].
(3) Many factors such as the convection coefficient, the friction factor, the environment temperature and the rotating speed will affect the temperature rise of the gear and the belt.
CHINESE JOURNAL OF MECHANICAL ENGINEERING, 2007, 43(6):1-6 [3] XU Zili.
Simulation of a steady temperature field and Analysis of factors affecting a worm gear[J].

This study experimentally examines the effect of PVA (poly ethylene vinyl acetate) as a self-healing agent on the mechanical properties of geopolymer mortar after 24 hours curing in various temperatures.
Compressive strength and porosity tests were conducted to provide fundamental information on the hardened properties of geopolymer mortar.
Based on the results, 90ºC heat curing showed higher improvement on compressive strength properties than other specimens.
Microcracks resulted from drying shrinkage will be interconnected via micro pores which affecting the structural performance of hardened geopolymer binder.
However, the microbial precipitation depends on several factors such as pH, the concentration of calcium ions, the concentration of dissolved inorganic carbon and the presence of nucleation sites.

Dynamic Properties of Silicate-Grouted Sand at Low Stress Level J.
The hysteretic method was employed to determine the dynamic properties (complex modulus and phase angle).
Dynamic Properties.
Table 1.Physical Properties of Sand and Mixture Proportion.
[6] Ata, A., and Vipulanandan, C., Factors affecting mechanical and creep properties of silicate-grouted sands, Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 125(10), 1999, 868-876

One of the factors that affect the EMI method application is the ambient temperature which not only influences the structure, but also the PZT transducers [[] G.
If the properties of the structure change, its mechanical impedance will change, and simultaneously the electrical impedance of the PZT transducer coupling vibrating with the structure will change and display through its self-sensing properties.
That is, the change of PZT’s electrical impedance reflects directly the change of the structure’s properties.
Small change in temperature can lead to changes in PZT properties.
This is because the impedance of piezoelectric ceramic material as a reflection of its electric properties is related with how much that the atoms or molecules inside the piezoelectric ceramics can bind the electrons.

Moreover, it can’t relate the basic mechanical properties of titanium alloys with their protection capacity directly.
In order to evaluate the impact protection capacity, researchers tend to use mechanical test to investigate the dynamic properties of titanium alloys in laboratory.
Besides, they have also built the relationship between those dynamic mechanical properties and their ballistic performance of titanium alloys.
Dynamic mechanical properties in relation to adiabatic shear band formation in titanium alloy-Ti17 Li.
Effects of microstructural factors on quasi-static and dynamic deformation behaviors of Ti-6Al-4V alloys with widmanstätten structures.

However, its other performances in terms of physical properties, mechanical properties and specific wear rate have been the keen interest of researchers.
Apart from filler factors, curing technology also affects the performance of dental composite.
In order to select any material for dental restoration application, all mechanical and biological factors must be considered.
Mechanical factors includes various forces during chewing, biting, crushing, mastication etc.
On the other hand, there was significant improvement in mechanical properties.

P-type Bi0.5Sb1.5Te3 compounds doped with 3wt% Te were fabricated by spark plasma sintering and their mechanical and thermoelectric properties were investigated.
It is expected that the mechanical properties could be improved by using hybrid powders without degradation of thermoelectric properties.
In this study, to improve the mechanical properties and performance of thermoelectric materials concurrently, the p-type Bi0.5Sb1.5Te3 compounds with different mixing ratio were prepared by SPS and then their mechanical and thermoelectrical properties were evaluated.
Therefore, the electrical resistivity can be altered without affecting the Seebeck coefficient and high electrical power factor (α2σ) can be obtained.
It is considered that the mechanical properties could be improved by blending powders without degradation of thermoelectric properties.

Attempts have been made in order to control the pore structure since it directly affects the physical properties, namely the mechanical strength.
In the present paper, a dip coating method similar to that adopted by Zhu et al [4] was investigated in order to improve the mechanical properties of the resultant foams.
The mean circularity factor, commonly used to evaluate the roundness of cells, is given by the average of the circularity factors of cells.
Analyzing the shape factors, the a.r. factor decreased about 5% for A30 foams and 6% for B60 foams, while the .circF factor increased about 4% and 9% for the coated foams, respectively.
Ashby: Cellular Solids, Structure & Properties (Cambridge Univ.