Solid Rocket Motor Finite Element Analysis Based on the Reverse Modeling of ICT Images

2014 ◽  
Vol 599-601 ◽  
pp. 1708-1711
Author(s):  
Peng Li ◽  
Hong Mei Zhou ◽  
Hong Yi Lu ◽  
Min Zhu ◽  
Qing Gui Chen
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Rocket Motor ◽  
Experimental Result ◽  
Solid Rocket Motor ◽  
Element Analysis ◽  
Contour Segmentation ◽  
Modeling Software ◽  
Solid Rocket ◽  
Vector Images

To Evaluate SRM effectively, according to the structure characteristics of solid rocket motor, the series of solid rocket motor ICT images were processed with edge detection ,edge thinning, contour tracing, contour segmentation, and contour fitting. The raster images were converted to vector images which can be recognized by the CAD modeling software. Then, according to the vector images, SRM was modeled by the software, and the model was studied with finite-element analysis. The experimental result indicates that the quality of the model is good, and the result of the finite-element analysis can reflect the state of the experimental SRM.

scholarly journals Structural integrity analysis and experimental investigation for solid rocket motor grain subjected to low temperature ignition

2019 ◽  
Vol 293 ◽  
pp. 04005
Author(s):  
Zhi-Bin Shen ◽  
Liang Zhang ◽  
Yi-Fei Li
Keyword(s):  
Finite Element ◽  
Low Temperature ◽  
Structural Integrity ◽  
Three Dimensional ◽  
Element Model ◽  
Rocket Motor ◽  
Experimental Result ◽  
Solid Rocket Motor ◽  
Temperature And Pressure ◽  
Solid Rocket

The structural integrity of solid rocket motor(SRM) grain is severely tested owing to the combined action of low temperature and pressure load under the load case of low temperature ignition. The three dimensional finite element model of SRM was created to analyze the structural integrity of the SRM grain subjected to low temperature and ignition pressure based on three dimensional viscoelastic finite element method via MSC.Patran/Marc. Meanwhile, cold pressurization test was applied on certain SRM. The experimental result and numerical result were compared based on uncoupling principal of temperature and pressure. The result show that the safety factor of solid rocket motor grain is 2.46 which can meet the requirement of structural integrity. The experimental results are in good agreement with the simulation results. Relevant research methods and conclusions can provide reference for the design, analysis and test of SRMs.

Fatigue Strength Study on Radial Bogie Vice Frame Based on Finite Element Analysis

2015 ◽  
Vol 723 ◽  
pp. 96-99
Author(s):  
Xiao Wei Wang ◽  
Mao Xiang Lang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Fatigue Life ◽  
Fatigue Strength ◽  
Structural Strength ◽  
Simulation Software ◽  
Experimental Result ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
The Stability

The vice frame bears and transfers the forces and loads between the bogie and the vehicle body.The strength of the vice frame relates directly to the stability and smoothness of the vehicle. In this study, finite element analysis is utilized first to analyse the structural strength and fatigue life of the vice frame, and the recognize the weak parts of its structure in order to enhance its structural strength in the following design work.The finite element analysis is performed on a simulation software Ansys. Then an experiment is designed to test the fatigue strength of the vice frame. The experimental result indicates that the fatigue strength of the object corresponds to the standards and the finite element analysis has high feasibility in solving this kind of problem.

Design and Performance Analysis of Vehicle Tyre Pattern Material Using Finite Element Analysis and ANSYS R16.2

2018 ◽  
Vol 777 ◽  
pp. 426-431
Author(s):  
S. Nallusamy ◽  
M. Rajaram Narayanan ◽  
R. Suganthini Rekha
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Contact Pressure ◽  
Equivalent Stress ◽  
Frictional Stress ◽  
Inflation Pressure ◽  
Element Analysis ◽  
Modeling Software ◽  
Element Approach ◽  
And Performance

As it stands now, rubber has been the main material used in the making of pneumatic vehicle tyres. Speed of the vehicle depends on many factors like steering geometry, inflation pressure, vehicle load, road temperature and environmental conditions. The main aim of this research is to develop a finite element approach and computationally evaluate the performance of a steady-state rolling tyre by changing the tyre tread patterns. The tyre normally composed of rubber and body-ply was investigated with regards to the effect of the inflation pressure. Tyre modeling using six different types of patterns was completed by using Creo parametric 3D modeling software and then the tyre was discretized into small elements through ANSYS R16.2. The rim area of the tyre was fixed and pressure was applied to the inside surface of the rim. Finite element analysis was completed by using ANSYS R16.2 and equivalent stress, contact stress and contact pressure were found out to identify the best tyre pattern. From the final results it was observed that, Pattern-I had good agreement of results as compared to other type of patterns which showed medium frictional stress and contact pressure.

Based on Pro/E and Ansys'Finite Element Analysis of Conveying Roller

2012 ◽  
Vol 271-272 ◽  
pp. 797-800
Author(s):  
Chan Juan Chen ◽  
Zhou Wen
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Local Strain ◽  
Analysis Software ◽  
Roller Conveyor ◽  
Element Analysis ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Modeling Software

In order to study conveying roller force and improve its mechanical properties, we use three-dimensional modeling software Pro/E to build the solid model of the Apple box delivery device’s conveying roller. Using finite element analysis software Ansys to analyze conveying roller’s bending stress, we can get images of local strain and displacement contours .Contrasting with factory’s broken roller conveyor, we can find that: through the establishment of appropriate boundary conditions, Ansys can accurate finite element analysis, and provide the basis for the conveying roller structure improvements.

Finite Element Analysis of Stress Distributions on the Diamond Pick

2011 ◽  
Vol 487 ◽  
pp. 184-188
Author(s):  
Shu Tao Huang ◽  
Li Zhou ◽  
J. Li
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Finite Element Modeling ◽  
Lateral Pressure ◽  
Normal Pressure ◽  
Three Dimension ◽  
Stress Distributions ◽  
Element Analysis ◽  
Modeling Software ◽  
And Performance

Commercial finite element modeling software ANSYS was used to calculate the stress distributions of diamond pick at different loads. The three-dimension model of the pick was built and the direction and magnitude of load were varied to determine their effect on the stress distributions of diamond pick. The results show that the stresses located on the pick increase with the increasing of the normal and lateral pressure, and if the maximum normal pressure and lateral pressure are not higher than 480 kN and 150 kN, respectively, the diamond pick will not be damaged. The results obtained can provide available data for pick selection, design and performance.

Study on Fracture Test of Rocket Shear Pin

2012 ◽  
Vol 538-541 ◽  
pp. 1579-1582
Author(s):  
Meng Mei Zhang ◽  
Wen Yao Xu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
3D Modeling ◽  
Fracture Process ◽  
Shear Test ◽  
Geometric Parameters ◽  
Fracture Test ◽  
Analysis Software ◽  
Element Analysis ◽  
Modeling Software

In order to study effects of geometric parameters in fracture test, this paper used 3D modeling software Solidworks and finite element analysis software Deform to simulate the fracture process of rocket shear pin and study the effects on shear test while various geometric parameters change in the assembly of fixtures and shear pins. According the results we improved the fixtures of shear test. The new fixtures were used in the rocket shear pin fracture test.

Analysis on the Structural Reliability of Solid Rocket Motor Grains

2012 ◽  
Vol 503-504 ◽  
pp. 953-957
Author(s):  
Bing Long ◽  
Xin Long Chang ◽  
Bin Jian ◽  
Jian Wei Lai
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Structural Reliability ◽  
Accelerated Aging ◽  
Relaxation Modulus ◽  
Rocket Motor ◽  
Solid Rocket Motor ◽  
C 50 ◽  
Solid Rocket ◽  
Element Method

Based on Integral Stochastic Finite Element Method (ISFEM), the structural reliability of solid propellant grain was analyzed. Viscoelastic finite element method was determined and ISFEM is utilized to improve calculation efficiency. The thermally accelerated aging experiments at 40°C，50°C，60°C and 70°C were carried out, and the mechanical property parameters were investigated. Considering the randomness of Poisson’s ratio and relaxation modulus, structural reliability and its variation tendency solid rocket motor grain under the ignition pressurization case were investigated in combination with failure criterion. The results show that the reliability of SRM grain descends not evidence before twelve years, but quickly descends after 12 years.

Numerical Simulation on Efficient Spinning Technology Based on Multi-Point Adjusting Principle

2011 ◽  
Vol 189-193 ◽  
pp. 2993-2996
Author(s):  
Xue Peng Gong
Keyword(s):  
Numerical Simulation ◽  
Finite Element Analysis ◽  
Plastic Deformation ◽  
Finite Element ◽  
Flexible Manufacturing ◽  
High Efficiency ◽  
Equivalent Stress ◽  
Experimental Result ◽  
Element Analysis ◽  
Fea Model

In order to realize high efficiency and flexible manufacturing for rotary surfaces, efficient spinning technology (EST) is researched. It is the combination of multi-point forming and traditional spinning. Principle of EST is described, traditional spinning method is compared with it, and characteristics of it are analyzed. Finite element analysis (FEA) model of disc-shape part is established, EST process is analyzed, equivalent stress and plastic strain distributions are analyzed. EST equipment is developed, and the experiments are made. Results indicate: EST process consists of four stages; equivalent stress in sheet metal’s center region and bendable rollers active region exceeds yield stress, and plastic deformation is generated; experimental result accords with simulation result. Feasibility of EST is validated by simulation and experimental results.

Comparison of Flexural Behaviour of Composite FRP with UHPC I-Beam Using Finite Element Analysis

2021 ◽  
Vol 1042 ◽  
pp. 151-156
Author(s):  
Siti Shahirah Saidin ◽  
Adiza Jamadin ◽  
Sakhiah Abdul Kudus ◽  
Norliyati Mohd Amin
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Construction Materials ◽  
Flexural Behavior ◽  
Advanced Materials ◽  
Bending Test ◽  
Fiber Reinforced Polymers ◽  
Experimental Result ◽  
Beam Model ◽  
Element Analysis

Concrete can be considered as the ultimate construction material since it is the most widely used in the construction materials due to its extensive strength and reasonable cost. Recent years, large investments have been spent for studies on the new advanced materials to enhance the performance and functionality of conventional concrete especially for bridge structure. The application of Ultra-high-performance concrete (UHPC) as advanced materials in bridge application is well established since it able to construct 100m long highway bridge without reinforcement, while fiber reinforced polymers (FRP) required some studies on the optimum composition for bridge application. In this paper, A33 composite FRP from the previous research is studied under 4-point bending test to study the flexural behavior and compared to the UHPC. Three-dimensional finite element analysis of FRP and UHPC I-beam are modelled using Abaqus software to determine and compare the beam deflection and stress. The deflection and stress UHPC and FRP I-beam model being validated with experimental result of four-point bending test and theoretical of equivalent method in previous research. The results from the analytical and experimental are compared and shows good agreements. The presented modeling offers an economical and efficient tool to investigate the structural performance of FRP and UHPC in construction materials.

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