Structural strength analysis and optimum of suspension under typical working conditions

2017 ◽  
Author(s):  
Zhang Gong-Xue ◽  
Bai Yuan
Keyword(s):  
Working Conditions ◽  
Structural Strength ◽  
Strength Analysis

Compressive Strength Analysis of MWD Microchip Tracer

2014 ◽  
Vol 511-512 ◽  
pp. 561-564
Author(s):  
Ji Bo Li ◽  
Wei Ning Ni ◽  
San Guo Li ◽  
Zu Yang Zhu
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Compressive Strength ◽  
Working Conditions ◽  
Failure Criterion ◽  
Strength Analysis ◽  
Design Phase ◽  
Key Issues ◽  
Simulation Results ◽  
Better Than

Pressure resistant performance of Measure While Drilling (MWD) microchip tracer to withstand the harsh downhole environment is one of the key issues of normal working. Therefore, it is an effective way to analyze pressure resistant performance of the tracer in the design phase. Compressive strength of the tracer was studied based on finite element method. Considering downhole complexity and working conditions during the processing of tracer roundness, material non-uniformity and other factors. In this study, researchers took sub-proportion failure criterion to determine the failure of tracer. Simulation results of two structures, with pin and without pin, show that both structures met the requirement of downhole compressive strength, and the structure with pin was better than the structure without pin. This study provides basis for downhole application of microchip tracers.

Structural Strength Analysis and Measurement of Composite Laminate Using Finite Element Method and FBG Sensor

2016 ◽  
Vol 851 ◽  
pp. 720-727
Author(s):  
Yu Chuan Lin ◽  
Wen Jeng Hsueh
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Cantilever Beam ◽  
Composite Laminate ◽  
Structural Strength ◽  
Measuring System ◽  
Bending Test ◽  
Strength Analysis ◽  
Fbg Sensor ◽  
Element Method

The aim of this study is to develop structural strength analysis technique and real-time measuring system of composite laminate using finite element method (FEM) and fiber bragg grating (FBG) sensor. A composite laminate of cantilever beam was designed and fabricated using glass fiber reinforced plastic (GFRP) for structural mechanics behavior research. Six design cases of different orientations composite laminate were considered for the better combinations by using FEM program. The bending test of a composite laminate of cantilever beam was performed by using FBG sensor to obtained relationship between strain and displacement. The study result shows that the higher stiffness of composite laminate of cantilever beam was obtained in the [0/90/0/90] orientation. The first natural frequency is 34.83 Hz and corresponding mode shape is bending mode in Z-direction. The FEM and FBG sensor have been successfully used in variety of composite laminate design with different layering sequences by this article.

Strength Analysis of Oil Tanker Under Numerical Wave

2018 ◽  
Author(s):  
Cheng Shu ◽  
Li Hong ◽  
Zhang Dongxu
Keyword(s):  
Structural Strength ◽  
Fluid Structure Interaction ◽  
Ocean Waves ◽  
Wave Action ◽  
Stokes Wave ◽  
Strength Analysis ◽  
Two Phase ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Equivalent Load

The strength of an oil carrier is generally checked using static load or equivalent load of wave action in accordance with relevant specifications. In order to accurately calculate the stress and the deformation of an oil carrier under wave action, the fluid-structure interaction system in the platform Workbench is used in this work. And, the pressure-based solver, the two-phase flow model and UDF (User Defined Function) in the software FLUENT are used to compile the three-order Stokes Wave so as to simulate ocean waves. Forces acting on the surface of the oil carrier are obtained by calculating the flow field, and the structural strength of the carrier is then investigated under sagging and hogging conditions. The results show that: the three-order Stokes Wave matches well with the theoretical result, and it is feasible to research the strength of the oil carrier by generating waves using this numerical method. In addition, the method of fluid-structure interaction is applied to investigate the structural strength of the fully-loaded carrier under sagging and hogging conditions.

The Finite Element Analysis of a Shipyard's Lifting Eye with Load

2013 ◽  
Vol 631-632 ◽  
pp. 1006-1010
Author(s):  
Shao Fen Lin ◽  
Zhao Yi Zhu
Keyword(s):  
Finite Element ◽  
Working Conditions ◽  
High Reliability ◽  
Strength Analysis ◽  
Bearing Surface ◽  
Calculation Methods ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Simplified Method ◽  
Nonlinear Contact

As lifting points for ship block turning over and hoisting operation, the strength of the lifting eye directly affects the safety of the operation, therefore it is required for extreme high reliability. The conventional strength analysis can not exactly describe the actual stress and working conditions of the lifting eye, nonlinear contact and simplified finite element arithmetic are used for analyzing and checking the lifting eye's strength in this paper; and the stress force distribution formula, which can well reflect the true status of the pressure-bearing surface, is researched. Through the comparison of the various calculation methods, it can be found that the reasonable simplified method can approach the nonlinear contact finite element arithmetic with high precision and is characterized with higher calculation speed and more concise and practicable.

scholarly journals Strength analysis of banded roll for asymmetric rolling of few-leaf springs

2018 ◽  
pp. 101-109
Author(s):  
L. A. Isaevich ◽  
A. D. Kritsky ◽  
D. M. Ivanickij ◽  
M. I. Sidorenko
Keyword(s):  
Structural Strength ◽  
Rolling Process ◽  
Strength Analysis ◽  
Asymmetric Rolling ◽  
Minimum Value ◽  
Tight Contact ◽  
Leaf Springs ◽  
Bearing Stress ◽  
Made In

The nominal rotational torque on the rolls during asymmetric rolling of a strip of few-leaf springs was calculated. To stabilize the rolling process it was proposed to use a front tension and a minimum value of such tension was computed. Misalignment of the circumferential speeds of the driving and driven rolls are calculated. The design of a composite banded roll with two tabs on the bandage and the two grooves on the shaft are proposed. In addition, the mating surfaces of the shaft and the shroud are made in the form of a Morse cone, which facilitates the repair of the roll and provides a tight contact between the mating surfaces. The test for bearing stress and shear of the tabs on the bandage. The structural strength of banded roll is provided.

scholarly journals Structural Strength Analysis at Cushion Frame and Back Frame of Automotive Seat

2012 ◽  
Vol 13 (11) ◽  
pp. 4956-4962 ◽  
Author(s):  
Sung-Soo Kim ◽  
Key-Sun Kim ◽  
Doo-Seuk Choi ◽  
Sang-Heup Park ◽  
Sei-Hwan Kim ◽  
...  
Keyword(s):  
Structural Strength ◽  
Strength Analysis

Structural Simulation and Strength Analysis for Trailer Bogie Frame of High-Speed Train Based on CATIA and ANSYS Workbench

2020 ◽  
Vol 13 (3) ◽  
pp. 266-279
Author(s):  
Junguo Wang ◽  
Minqiang Ren ◽  
Rui Sun ◽  
Yang Yang ◽  
Yongxiang Zhao
Keyword(s):  
Dynamic Characteristics ◽  
High Speed ◽  
Structural Strength ◽  
Dynamic Performance ◽  
Static Strength ◽  
Railway Vehicle ◽  
Strength Analysis ◽  
Design Standards ◽  
Bogie Frame ◽  
Ansys Workbench

Background: As a key component of the rail transit vehicle, the railway bogie greatly affects the dynamic performance, reliability, and safety of the high-speed rail vehicle. In this paper, the structural strength of a typical trailer bogie frame is evaluated and its strength and dynamic requirements are verified. In addition, various patents on bogie structural strength have also been discussed in this paper. Objective: The study aimed to evaluate and verify the rationality of the bogie frame structure design with static strength and dynamic characteristics. Methods: A three-dimensional model of the trailer bogie frame was built by CATIA V5, and then, a finite element model of the frame was analyzed by ANSYS Workbench. Bogie frame loads, static strengths and dynamic characteristics of the frame under different conditions (straight, curve, braking and abnormal) were calculated based on its strength and design standards. Results: According to the requirement stress and dynamics standard, the maximum stress of the bogie frame was observed to be in the allowable stress value of the frame material, and the dynamic performance of the bogie model meets the design standards. Conclusion: The structural strength of the proposed bogie frame is reasonable, and the static strength and dynamic characteristics of the proposed bogie model are in accordance with the design requirements of the railway vehicle.

Safety Analysis of a Frame Building with Cracks Caused by Additional Equipments

2014 ◽  
Vol 638-640 ◽  
pp. 214-218
Author(s):  
Ji Tan Guo ◽  
Yan Wen
Keyword(s):  
Finite Element ◽  
Structural Strength ◽  
Field Tests ◽  
Static Strength ◽  
Strength Analysis ◽  
Reinforced Concrete Frame ◽  
Large Area ◽  
Concrete Frame ◽  
Frame Building ◽  
Element Technique

The safety of a reinforced concrete frame building with cracks on a large area of its wall was investigated by using numerical analysis and field tests. The cracks were caused by the roof additional equipments. The layout of the roof additional equipments was measured to determine their additional loads. The width and depth of existing cracks was also measured. The static strength analysis based on the finite element technique is used to evaluate the influence of the additional loads on structural strength. The research results show the unreasonable supports of additional loads and the insufficient stiffness of secondary beams are the main reasons for causing cracks on the wall, and a reinforcement and repair thought for the building is proposed.

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