Comparison of Static and Dynamic Analysis on KJYF96/8 Mobile Refuge Chamber

2014 ◽  
Vol 670-671 ◽  
pp. 892-895
Author(s):  
An Ning Zhang ◽  
Yu Ming Gu
Keyword(s):  
Dynamic Analysis ◽  
Static Analysis ◽  
Dynamic Pressure ◽  
External Pressure ◽  
Structure Design ◽  
Weighting Method ◽  
Static And Dynamic Analysis ◽  
Finite Element Software ◽  
Pressure Peak ◽  
The Difference

This paper studied the difference between the static analysis and dynamic analysis on the mobile refuge chamber. The structure strength static analysis of KJYF96/8 mobile refuge chamber was made by the finite element software SolidWorks Simulation and the stress cloud chart and the displacement cloud chart were obtained. The corresponding relation between the dynamic analysis result and the static analysis result was obtained based on the comparison with the result of the dynamic analysis. The results indicate that the values of the max stress and displacement by static analysis with a uniform external pressure of the dynamic pressure peak value are greater than those by dynamic analysis. And the weighting method of static analysis can be used in the coal mine mobile refuge chamber structure design process instead of dynamic analysis.

scholarly journals Local and global assessments of a subsea riser-spool connection under dropped impact loads

2021 ◽  
Vol 1201 (1) ◽  
pp. 012049
Author(s):  
Z Liu ◽  
R Igland ◽  
S Bruaseth
Keyword(s):  
Energy Level ◽  
Dynamic Analysis ◽  
Static Analysis ◽  
Numerical Study ◽  
Structure Design ◽  
Time Range ◽  
Impact Loads ◽  
Static And Dynamic Analysis ◽  
Impact Impulse ◽  
The Impact

Abstract Subsea riser tube and spool is often used together to connect the riser of jacket to flowline or pipeline. Due to its limited size (less than 200 m), the location is within the lifting zones of the platform. Consequently, the dropped object hazard has potential high risk and needs to be checked. This paper presents a numerical study on accessing the structural dynamics of a subsea riser connection under the dropped container impact loads. De-coupled local and global models were established. The impact impulse was obtained from local impact analysis by Abaqus Explicit solver, in which deformations from container and pipeline are both captured. The impact energy level is in line with the risk assessment. The global model was built by ANSYS APDL macros. A simple input file is only needed for end users. The nonlinear pipe and soil interaction are included in a simplified manner. The model comprises of static and dynamic analysis parts. The static analysis captures the in-place configuration and the functional loads. The dynamic analysis is a restart with inherited stress state from static analysis. The impact impulse was applied by point loads in a certain time range. The nonlinear soil stiffness was approached by spring elements (compression only). The dynamic analysis was done in a longer time, ensuring to capture any dynamic effects. The interface loads at the riser stick-out and riser anchor are both extracted and discussed. It is shown that present structure design can withstand the dropped loads at the input energy level.

Static and Dynamic Analysis of Intake Tower Structure

2013 ◽  
Vol 444-445 ◽  
pp. 912-915 ◽  
Author(s):  
Yong Xing Jiang ◽  
Jin Chao Yue ◽  
Ling Min Ye
Keyword(s):  
Dynamic Analysis ◽  
Static Analysis ◽  
Structural Design ◽  
Structure Design ◽  
Hydropower Station ◽  
Static And Dynamic Analysis ◽  
Tower Structure ◽  
Internal Forces ◽  
Design Requirements ◽  
Distribution Of Stress

Taking intake tower of Hydropower Station project for an example, ANSYS is used on the intake tower dynamic, static analysis, to study the distribution of stress and displacement as well as structural stability. The results show that, under load, the deformation and stability of the intake tower to meet the structural design requirements, need to take special measures in the weak parts of the internal forces in the structural design. The results in this paper may be served as the basis of structure design of the intake tower.

Static and Dynamic Analysis of Aluminium Composite in Wing Section Using ANSYS

2014 ◽  
Vol 984-985 ◽  
pp. 367-371
Author(s):  
E.S. Esakkiraj ◽  
S. Anish ◽  
V. Anish
Keyword(s):  
Static Analysis ◽  
Minimum Weight ◽  
Equivalent Stress ◽  
Model Analysis ◽  
Aluminium Composite ◽  
Aircraft Wing ◽  
Lower Stress ◽  
Static And Dynamic Analysis ◽  
Finite Element Software ◽  
Composite Wing

The cold of this cardboard is to abstraction and analyze the amount accustomed accommodation and weight accumulation of blended aircraft (Aluminium Silicon Carbide) addition with that of Aluminium wing and appropriately access the acceptable aircraft addition of minimum weight accomplished of address a accustomed changeless amount after failure. And also this paper presents a model and a static analysis of the aircraft wing, using the finite element software ANSYS. The geometry was created in CATIA V5 R18 and imported. The static and model analysis are carried out in analysis software ANSYS. The result of from the static analysis refers to the total deformation, equivalent stress, shear stress and shear intensity on the skin of the aircraft wing. The model analysis will be carried out to find out the first six modes of vibrations and the different mode shape in which wing can deform without the application of load. Compared to the conventional Aluminium wing, the hybridized composite wing experience far lower stresses and the aircraft wing weight nearly 40% and 50% lower stress.

Identification of Cryptographic Vulnerability and Malware Detection in Android

2017 ◽  
Vol 11 (3) ◽  
pp. 15-28 ◽  
Author(s):  
Anjali Kumawat ◽  
Anil Kumar Sharma ◽  
Sunita Kumawat
Keyword(s):  
Dynamic Analysis ◽  
Static Analysis ◽  
Malware Detection ◽  
Android Application ◽  
Malicious Attacks ◽  
Web Page ◽  
Static And Dynamic Analysis ◽  
Android System ◽  
User Friendly ◽  
The Web

Android based Smartphones are nowadays getting more popular. While using Smartphone, user is always concerned about security and malicious attacks, cryptographic vulnerability of the applications. With increase in the number of Android mobiles, Android malwares are also increasing very rapidly. So the authors have proposed the “Identification of cryptographic vulnerability and malware detection in Android” system. They have designed a user friendly android application, through which user and developer can easily test the application whether it is benign or vulnerable. The application will be tested firstly using static analysis and then the dynamic analysis will be carried out. The authors have implemented static and dynamic analysis of android application for vulnerable and malicious app detection. They have also created a web page. User can either use the application or the web page.

Dynamic Analysis of a Subsea Spool Under Dropped Container Impact Loads

2020 ◽  
Author(s):  
Zhenhui Liu ◽  
Ragnar Igland ◽  
Sindre Bruaseth ◽  
Luca Ercoli-Malacari
Keyword(s):  
Dynamic Analysis ◽  
Static Analysis ◽  
Impact Analysis ◽  
Oil Field ◽  
Global Model ◽  
Time Range ◽  
Impact Loads ◽  
Static And Dynamic Analysis ◽  
Impact Impulse ◽  
The Impact

Abstract A rigid subsea spool is used to connect the riser of a jacket platform to oil export pipeline in Johan Sverdrup oil field. The location is within the lifting zones of the platform. Consequently, the dropped object hazard has potential high risk and needs to be checked. This paper presents a numerical model on accessing the structural dynamics of subsea spool under the dropped container impact loads by using de-coupled local and global model. The impact impulse was obtained from local impact analysis by Abaqus Explicit solver, in which deformations from container and pipeline are both captured. The global model was built by using inhouse program utilizing ANSYS APDL macros. A simple input file is only needed for end users. The nonlinear pipe and soil interaction is included in a simplified manner. The model comprises of static and dynamic analysis parts. The static analysis captures the in-place configuration and the functional loads. The dynamic analysis is a restart with inherited stress state from static analysis. The impact impulse was applied by point loads in a certain time range. The nonlinear soil stiffness was approached by spring elements (compression only). The dynamic analysis was done in a longer time, ensuring to capture any dynamic effects. The interface loads at the riser stick-out and riser anchor are both extracted and discussed. Concluding remarks have been made accordingly.

scholarly journals AndroShield: Automated Android Applications Vulnerability Detection, a Hybrid Static and Dynamic Analysis Approach

Information ◽  
2019 ◽  
Vol 10 (10) ◽  
pp. 326 ◽  
Author(s):  
Amr Amin ◽  
Amgad Eldessouki ◽  
Menna Tullah Magdy ◽  
Nouran Abdeen ◽  
Hanan Hindy ◽  
...  
Keyword(s):  
Dynamic Analysis ◽  
Static Analysis ◽  
Mobile Applications ◽  
Web Application ◽  
Hybrid Approach ◽  
High Rate ◽  
Vulnerability Detection ◽  
Security Testing ◽  
Static And Dynamic Analysis ◽  
Android Applications

The security of mobile applications has become a major research field which is associated with a lot of challenges. The high rate of developing mobile applications has resulted in less secure applications. This is due to what is called the “rush to release” as defined by Ponemon Institute. Security testing—which is considered one of the main phases of the development life cycle—is either not performed or given minimal time; hence, there is a need for security testing automation. One of the techniques used is Automated Vulnerability Detection. Vulnerability detection is one of the security tests that aims at pinpointing potential security leaks. Fixing those leaks results in protecting smart-phones and tablet mobile device users against attacks. This paper focuses on building a hybrid approach of static and dynamic analysis for detecting the vulnerabilities of Android applications. This approach is capsuled in a usable platform (web application) to make it easy to use for both public users and professional developers. Static analysis, on one hand, performs code analysis. It does not require running the application to detect vulnerabilities. Dynamic analysis, on the other hand, detects the vulnerabilities that are dependent on the run-time behaviour of the application and cannot be detected using static analysis. The model is evaluated against different applications with different security vulnerabilities. Compared with other detection platforms, our model detects information leaks as well as insecure network requests alongside other commonly detected flaws that harm users’ privacy. The code is available through a GitHub repository for public contribution.

Identification of Cryptographic Vulnerability and Malware Detection in Android

2021 ◽  
pp. 58-74
Author(s):  
Anjali Kumawat ◽  
Anil Kumar Sharma ◽  
Sunita Kumawat
Keyword(s):  
Dynamic Analysis ◽  
Static Analysis ◽  
Malware Detection ◽  
Android Application ◽  
Malicious Attacks ◽  
Web Page ◽  
Static And Dynamic Analysis ◽  
Android System ◽  
User Friendly ◽  
The Web

Android based Smartphones are nowadays getting more popular. While using Smartphone, user is always concerned about security and malicious attacks, cryptographic vulnerability of the applications. With increase in the number of Android mobiles, Android malwares are also increasing very rapidly. So the authors have proposed the “Identification of cryptographic vulnerability and malware detection in Android” system. They have designed a user friendly android application, through which user and developer can easily test the application whether it is benign or vulnerable. The application will be tested firstly using static analysis and then the dynamic analysis will be carried out. The authors have implemented static and dynamic analysis of android application for vulnerable and malicious app detection. They have also created a web page. User can either use the application or the web page.

Research on Structure Design of Cable-Stayed Bridge

2012 ◽  
Vol 178-181 ◽  
pp. 2565-2569
Author(s):  
Xi Li ◽  
Ting Ting Cai
Keyword(s):  
Dynamic Analysis ◽  
Static Analysis ◽  
Transportation Problem ◽  
Daily Life ◽  
Structure Design ◽  
Large Span ◽  
Cable Stayed Bridge

Bridge is a kind of structure that is common in our daily life, it connect both sides of rivers, lakes, and even channels, also sometimes it is used to solve transportation problem, just like overpasses. Cable-Stayed Bridge because of its special advantages (large-span with fewer piers) is playing an increasingly important role now. In this work we made some research on structure design of Cable-Stayed Bridge, static analysis, dynamic analysis and Construction of the structure was proposed.

Dynamic Substructures Analysis of Combined Systems "Foundation - Structure - Equipment - Pipelines"

2014 ◽  
Vol 1040 ◽  
pp. 658-663
Author(s):  
Alexandr M. Belostotsky ◽  
Pavel A. Akimov ◽  
Alexey L. Potapenko ◽  
Vladislav V. Vershinin ◽  
Sergey V. Scherbina
Keyword(s):  
Finite Element ◽  
Research And Development ◽  
Dynamic Analysis ◽  
Nuclear Power ◽  
Software Application ◽  
Static And Dynamic Analysis ◽  
Finite Element Software ◽  
Industrial Use ◽  
Certified Software ◽  
Foundation Structure

The present paper is devoted to research and development of methods of advanced static and dynamic analysis of structures, based on application of flexible hierarchical substructure models “foundation – structure – equipment – pipelines”, implemented in certified software application packages, convenient for practical industrial use. Contemporary finite element software application packages (universal – ANSYS, ABAQUS – and self-engineered – STADYO, ASTRA-NOVA products) are used for justification of nuclear power facilities.

scholarly journals Static and Dynamic Analysis of a Pump Impeller with a Balancing Device Part I: Static Analysis

2014 ◽  
Vol 19 (3) ◽  
pp. 609-619
Author(s):  
C. Kundera ◽  
V.A. Martsinkovsky
Keyword(s):  
Dynamic Analysis ◽  
Static Analysis ◽  
Performance Parameters ◽  
Static Characteristics ◽  
Pump Impeller ◽  
Static And Dynamic Analysis ◽  
Numerical Example ◽  
Basic Performance ◽  
Simplifying Assumptions ◽  
Impeller Geometry

Abstract This part of the work presents the design and static analysis of an impeller for a single-stage pump. The impeller is directly connected with a balancing device. The impeller needs to have a properly designed system of longitudinal and lateral clearances on both sides. With the simplifying assumptions concerning the flow and distribution of pressure in the longitudinal and lateral clearances, the static analysis involved deriving relationships between the impeller geometry and the basic performance parameters of the pump. A numerical example was used to show the calculation procedure of static characteristics for the predetermined parameters

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