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Introducing a suitable model for a structure to understand its behavior under different conditions of loading is very important. Mathematical modeling is the simulation of a physical structure or physical process by means of suitable analytical or numerical construct. One of suitable methods for finding deflection of a beam under different forms of loading is Finite Element Method (FEM). In this paper...
In this paper, the deformation, internal forces and stress of single throttle slice of shock absorber was analyzed, the formula of the stresses of its were established. Studied the pressure and the stresses on each slice, the analytic stresses formulas of multi-slices were established. Followed a practical example for stresses computation of multi-slices with this new analytic method, and it was simulated...
Armoured face conveyor is a key component of the comprehensive mechanized coal mining equipments which has the characteristics of large size and heavy duty. The chain transmission system is adopted to transport material from the coal face. Three dimensional geometry model of the chain transmission system is built by Solidworks software including the chains, sprockets and axles. Based on the geometry...
Based on the test about compression-rebound properties of material bed, there are three zones in roller mill. The movement of material bed between two rollers in roller mill has been analysed. The pressure distribution equations in every zone on the roller's surface have been derived. The stress in roller is important for roller's failure analysis and the life estimation. But it depends on load, structure...
The void model with the consideration of contact is established based on the mechanism of void development. The concept of Contact Compensation is first put forward, and it is pointed out that the Contact Compensation is the essential reason to result in the intercept of relationship between load and deflection in the three points regression method for identifying the voids of concrete pavement. The...
The piled wharf on slope may impacted by the deformation of soft soil foundation, the lateral displacement of pile cap would increasing because the deformation of soft foundation, which would threaten the safety of wharf structure. The creep is one of the important factors, so it is meaningful to research the creep characteristics of slope. In this paper, the deformation damage of piled wharf and...
Based on the engagement principle of cycloid ball planetary transmission (CBPT), the load distribution mechanical model of engagement pair is established in condition of multi-teeth engagement, and the coefficient of load distribution of teeth is presented. The finite element model of engagement pair is established in condition of four points contact. The stress distribution of engagement pair in...
The theoretical analysis of finite element method for buckling phenomenon to finite-sized shell structure is first introduced. Then, a real application using a probe for detecting the pressure inside turboprops is analyzed thoroughly with ANSYS10.0, including section profile, dimensions, and local characteristics. Based on the solved results, several rules between critical load and influence factors...
The forces of the ship-based helicopter are analyzed comprehensively in the winds and waves. The parameterized FEM model about the ship-based helicopter body, the mooring cable and the mooring base is established with the language APDL. The parameterized FEM model is used to calculate the tension of the mooring cables for different sea conditions. The mooring cable will present strong nonlinearity...
Non integer order systems are used to model diffusion in conductive parts of electrical machines as they lead to more compact and knowledge models but also to improve their precision. Nevertheless, non integer order models have been established under linear conditions. It is than interesting to study the influence of saturation on such model parameters. In this article, a linear half-order impedance...
Combination and simplification are often adopted as the solution to the problem of there are lots of the Crack group, Pore group and Inclusion group in the components especially in welded joints. In this study, simplifications were simulated with CAE software. The comparison results dedicates that the Stress Intensity Factors (SIF) obtained after simplification were greater than the primary. Therefore,...
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