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Rubber suspension system is a new suspension system in which rubber is used to be the elastic element, thus rubber spring is one of the key components of suspension.
Rubber main spring, the key part of rubber suspension parts, is key of the design.
In the material properties defined, Metal parts are defined as isotropic material, Young's modulus of elasticity E=2.1E5MPa, Poisson's ratio μ=0.3.
To accurately simulate the nonlinear properties of rubber materials, rubber parts defined as isotropic material, Young's modulus of elasticity E=3.5MPa, Poisson's ratioμ=0.499.
As the ANSYS modeling function is not strong enough, we use Pro/Engineer Wildfire professional CAD software for the element modeling of rubber, then the ANSYS should be imported and analyzed, the specific steps of which are no longer listed here.

Brief analysis of floor grouting method in soft rock roadway based on engineering materials and engineering mechanics Pengwei Hao1,2,a, Hailong Dong2,b, Zhaohui Liu1,c, Jingpei Li1,d, Laiwang Jing2,e 1 School of Civil Engineering and Mechanics, China University of Mining and Technology (Beijing), Beijing, China, 10083 2 College of Science, Anhui University of Science and Technology, Huainan, Anhui, China, 232001 a57066490@qq.com, b824426446@qq.com, clzh4969183@163.com, dLijp6666@126.com, elxybg@aust.edu.cn Key words: soft rock roadway, floor grouting, broken rock zone, free water in floor Abstract: Floor grouting in soft rock roadway is one of the effective ways in floor heave control, and this method is being promoted quietly and quickly, but the applying effect is far from satisfied, the reasons are that: the depth of floor grouting is not enough and the influence of water hiding in floor hasn’t been attached great importance.
The three hinged beams A, B, C and the three points a, b, c, to rock like materials, if they exist or not will not greatly affect the stress distribution of surrounding rock ,that is, the result obtained what is based on circular roadway analysis is relatively accurate, so it can be used as main basis of roadway support design.
It makes free water be drained away from floor, so floor broken rock zone would not further expand any more because of water soak. 4 Difficulties analysis of floor grouting The materials and mechanical devices used in floor grouting are essentially the same as those used in roof grouting, but floor broken rock zone is the deepest, furthermore there is a lot of free water in it.
In fact, there are two key factors in floor grouting: drilling grouting holes deep enough and draining off free water inside floor.
Mechanism of Floor Heave and Control Technology of Roadway Induced by Mining, Journal of Mining &Safety Engineering, 2011, 28(1): 1-5

Research of the application of virtual machine manufacturing technology based on internet Xiao-jun Wang1, a and Zhong-yue Xiao2, b 1 Mechanical and Electronic Department of Guangdong Technology Normal College, Gangzhou 510635, China 2 School of Technology, Jinggangshan University, Ji'an 343009, China a wxj65881010@163.com, bxiao_zhongyue@163.com Key words: Virtual machine manufacturing; Key technologies; Model Abstract.
This paper analyzes the key technologies to the virtual machine manufacturing and puts forward three models of the virtual machine manufacturing.
Virtual Manufacturing is involved in the engineering virtual activity related to product development manufacture, and contains the virtual enterprise organization management and relevant management activities.
In this level the main technologies includes product-based technology composite product design and analysis, simulation-based design and analysis of parts and components manufacturing, simulation-based manufacturing process of collision and interference sports track inspection and testing, materials processing molding simulation, product virtual assembly, such as automatic wheel dressing, automatic balance and the operation test protection devices
Mechanical Engineering Vol. 4 (1999), p. 935 [3] B.

In tissue engineering (TE), a porous scaffold structure of biodegradable material is required as a template to guide the proliferation, growth and development of cells appropriately in three dimensions.
Introduction Tissue engineering (TE) is one of the emerging fields of biomedical engineering that applies the principles and methods of biology, medicine, and engineering toward the development of viable substitutes capable of replacing the lost part or regenerating the functions of damaged tissue that fails to heal spontaneously.
Vacanti, Principles of Tissue Engineering, Academic Press, (2000)
Chua, Development of a Tissue Engineering Scaffold Structure Library for Rapid Prototyping.
Naing, Automatic algorithm for generating complex polyhedral scaffold structures for tissue engineering, Tissue Engineering, Vol 10(3/4) (2004). 595-610

Kuric, Basic and Advanced Materials for Fused Deposition Modeling Rapid Prototyping Technology, Manuf. and Industrial Engineering 11 (2012) 24-27
Pokorný, Influence of the Lead Angle from the Vertical Axis Milling on Effective Radiu sof the Cutter, Key Engineering Materials 581 (2014) 44-49
Onofrejova, Modelling of Production Lines for Mass Production of Sanitary Products, Procedia Engineering 96 (2014) 330-337
Panda et al., Analytical expression of T-vc dependence in standard ISO 3685 for cutting ceramic, Key Engineering Materials 480-481 (2011) 317-322
Petru et al., Surface roughness after machining and influence of feed rate on process, Key Engineering Materials 581 (2014) 341-347.

Recently, the safety of existing civil engineering structures attracts more and more attention.
The long-term strength of concrete plays a key role during the assessment of safety and durability for civil engineering structures.
The strength of concrete will gradually decrease during the service of civil engineering structures.
The key point in condition assessment is how to measure the real strength of material used in the existing structure.
Engineering Structures, 31, 600-606, (2009) [5] Okan Karahan, Harun Tanyildizi, Cengiz D.

The Guarantee Rate of the Engineering is not Unified.
Bank is the largest engineering guarantee market guarantor, almost a monopoly of our country engineering guarantee market all the volume of business.
Recommended by the construction administrative departments take the lead in establishing the database to achieve longitudinal (mainly the construction administrative departments between) and lateral (industry and commerce, taxation and other departments) networking, as far as possible to the engineering guarantee subject provide the contractor and the owner of various materials, the contractor and the owner 's credit level to make accurate judgments.
Engineering guarantee is directly to the engineering services, the fees shall be included in the cost of the project, at the national and local engineering cost management, should be studied to solve the problems in the cost of the project.
Research of Chinese engineering assured guarantees mechanism.

The thermal insulation materials form integral part of all constructions in civil engineering.
Variations in environmental temperature, relative humidity and atmospheric pressure take a considerable share in the behavior of the materials built in engineering structures and influence their features.
Simulation Model of an engineering structure envelope was made in order to check the behavior of the developed materials in the engineering structure in practice.
Study syllabus, Brno University of Technology, Faculty of civil engineering, Brno, Czech Republic. (2006) [3] V.
Analysis of Thermal Insulation from Renewable Resources, Engineering structures and technologies,2(2): 66-70

Properties of Jute Fibers Reinforced Friction Materials Yunhai Ma1,a, Suqiu Jia1,2,3,b, Baogang Wang1,2,a, Wei Ye1,2,a, Jin Tong1,2,c and Hong lei Jia 1,2,a, Shuang Wen 4,a 1The Key Laboratory of Engineering Bionics (Ministry of Education, P.R.China), Jilin University (Nanling Campus), 5988 Renmin Street, Changchun 130022, P.R.China 2The College of Biological and Agricultural Engineering, Jilin University (Nanling Campus), 5988 Renmin Street, Changchun 130022,P.R.China 3The Key Laboratory of Advanced Structural Materials (Ministry of Education，P.R.China ) Changchun University of Technology, 2055 Yan’an Street, Changchun 130012, P.R.
The friction coefficients of 3wt.%,9wt.% and 12wt.% jute fibers reinforced friction materials were bigger than that of the materials without jute fibers in the heating condition.
The friction coefficient of 6 wt.% jute fibers reinforced friction materials was bigger than that of the materials without jute fibers below 250℃.
The friction coefficient of 6wt.% jute fibers reinforced friction materials was bigger than that of the materials without jute fibers below 250℃.
The friction coefficient of 6wt.% jute fibers reinforced friction materials was bigger than that of the materials without jute fibers below 250℃.

Engineering Feasibility Study On The Beijing East 2nd Ring Underground Road Wu Jin-gang1,a , Chen Ren-dong1,b , Bi Qiang1,c, Guo Hua1,d 1Beijing General Municipal Engineering Design and Research Institute, Beijing 100082, China awjg_0203@sohu.com, bcherd@bmedi.cn, cbiqiang211@bmedi.cn, dguohua@bmedi.cn Keywords: Underground road; east 2nd ring road, traversal subway tunnel, engineering feasibility.
At the same time, they can apply rapid transit travel services for key functional areas.
According to the geological survey and the actual engineering data, FLAC3D model is adopted in the calculation.
Material parameters are shown in Table 2.
References [1] Beijing General Municipal Engineering Design and Research Institute, “Beijing East Second Ring Road in underground diameter line engineering design”, 2011.8