scholarly journals Desain dan Analisis Tegangan Rangka Alat Simulasi Pergerakan Kendali Terbang Menggunakan Metode Elemen Hingga

2021 ◽  
Vol 5 (1) ◽  
pp. 19
Author(s):  
Ready Kresna Nanda Suprapto ◽  
Lasinta Ari Nendra Wibawa
Keyword(s):  
Flight Control ◽  
Dynamic Loads ◽  
Simulation Tool ◽  
The Finite Element Method ◽  
Working Mechanism ◽  
Hollow Section ◽  
Frame Design ◽  
Visual Aid ◽  
Airplane Wing ◽  
Movement Simulation

Alat simulasi pergerakan kendali terbang merupakan alat peraga untuk menunjukkan mekanisme kerja dari sayap dan ekor pesawat terbang yang mendekati kenyataan. Alat ini bertujuan sebagai metode pembelajaran bagi calon pilot sebelum mengendarai sebuah pesawat terbang. Penelitian ini bertujuan untuk merancang dan menganalisis rangka alat simulasi pergerakan kendali terbang menggunakan metode elemen hingga. Analisis statik dilakukan menggunakan perangkat lunak SolidWorks 2017.  Material rangka yang digunakan yaitu baja ASTM A36 dan ASTM A500 (square hollow section) dengan ukuran 50 x 50 x 1,2 mm dan 40 x 40 x 1 mm.  Beban yang digunakan yaitu 375,25 kg yang merupakan beban sayap dan ekor pesawat. Hasil analisis menunjukkan rancangan rangka aman untuk menahan beban dinamis menggunakan baja ukuran 50 x 50 x 1,2 mm. Hal ini karena material ASTM A36 dan ASTM A500 untuk ukuran 50 x 50 x 1,2 mm memiliki faktor kemanan berturut-turut 2,162 dan 2,724. The flight control movement simulation tool is a visual aid to show the working mechanism of an airplane wing and tail close to reality. This tool aims as a learning method for aspiring pilots before driving an airplane. The study aims to design and analyze a flight control movement simulation frame using the finite element method. Static analysis was performed using SolidWorks 2017 software. The frame material used was ASTM A36 and ASTM 500 steel (square hollow section) with sizes of 50 x 50 x 1.2 mm and 40 x 40 x 1 mm. The load used is 375.25 kg, which is the weight of the aircraft's wing and tail. The analysis results show that a safe frame design to withstand dynamic loads uses 50 x 50 x 1.2 mm steel. The ASTM A36 and ASTM A500 materials for sizes 50 x 50 x 1.2 mm have a safety factor of 2.162 and 2.724, respectively.

scholarly journals ANALYSIS OF DYNAMIC LOADING OF IMPROVED CONSTRUCTION OF A TANK CONTAINER UNDER OPERATIONAL LOAD MODES

2019 ◽  
Vol 2 ◽  
pp. 61-70
Author(s):  
Oleksij Fomin ◽  
Alyona Lovska ◽  
Oleksandr Gorobchenko ◽  
Serhii Turpak ◽  
Iryna Kyrychenko ◽  
...  
Keyword(s):  
Dynamic Loading ◽  
Dynamic Load ◽  
Operating Conditions ◽  
Dynamic Loads ◽  
The Finite Element Method ◽  
Operational Load ◽  
International Transport ◽  
Improvement Measures ◽  
Cargo Transportation

An increase in the volume of bulk cargo transportation through international transport corridors necessitates the commissioning of tank containers. Intermodalization of a tank container predetermines its load in various operating conditions depending on the type of vehicle on which it is carried: aviation, sea, air or rail. The analysis of the operating conditions of tank containers, as well as the regulatory documents governing their workload, led to the conclusion that the most dynamic loads acting on the supporting structures during transportation by rail. Namely, during the maneuvering collision of a wagon-platform, on which there are tank containers. In this case, it is stipulated that for a loaded tank container, the dynamic load is assumed to be 4g, and for an empty (for the purpose of checking the reinforcement) – 5g. It is important to note that when the tank container is underfilled with bulk cargo and taking into account movements of fittings relative to fittings, the maximum value of dynamic load can reach significantly larger values. Therefore, in order to ensure the strength of tank containers, an improvement of their structures has been proposed by introducing elastic-viscous bonds into the fittings. To determine the dynamic loading of the tank container, taking into account the improvement measures, mathematical models have been compiled, taking into account the presence of elastic, viscous and elastic-viscous bonds between the fittings, stops and fittings. It is established that the elastic bond does not fully compensate for the dynamic loads acting on the tank container. The results of mathematical modeling of dynamic loading, taking into account the presence of viscous and elastic-viscous coupling in the fittings, made it possible to conclude that the maximum accelerations per tank container do not exceed the normalized values. The determination of the dynamic loading of the tank container is also carried out by computer simulation using the finite element method. The calculation takes place in the software package CosmosWorks. The maximum values of accelerations are obtained, as well as their distribution fields relative to the supporting structure of the tank container. The developed models are verified by the Fisher criterion. The research will contribute to the creation of tank containers with improved technical, operational, as well as environmental characteristics and an increase in the efficiency of the liquid cargo transportation process through international transport corridors.

A Novel Force Sensor Based Multi-Function Take-Off Board

2012 ◽  
Vol 468-471 ◽  
pp. 221-224
Author(s):  
Pei Chen ◽  
Yu Long Zhao ◽  
Bao Jin Wang ◽  
Shan Ping Chen ◽  
Zhen Long Yan
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Force Sensor ◽  
Structural Deformation ◽  
Force Sensors ◽  
The Finite Element Method ◽  
Working Mechanism ◽  
Practical Applications ◽  
Jump Training ◽  
Long Jump

In order to detect the take-off forces of athletes in long jump, a novel force sensor based take-off board is designed. The take-off board consists of a standard take-off board, two novel force sensors, two support plates and a base. The working mechanism of the strain beam in the force sensor is analyzed and the finite element method(FEM) is used to investigate the structural deformation and stress distribution. Then the sensor is tested. The calibration experimental results demonstrate that the sensor has an excellent measurement linearity (0.6%) and can meet the requirements of practical applications. Then the multi-function take-off board based on the force sensors is designed and manufactured which can make the daily long jump training more scientific.

Behavior of Square Hollow Section Steel Tubes Filled with Concrete under Different Loading Conditions

2014 ◽  
Vol 577 ◽  
pp. 1097-1103
Author(s):  
Tian De Jin ◽  
Lan Hui Guo
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Yield Strength ◽  
Bearing Capacity ◽  
Area Ratio ◽  
Loading Conditions ◽  
The Finite Element Method ◽  
Hollow Section ◽  
Core Concrete ◽  
Element Method

In this paper, the behavior of composite stub columns under different loading conditions is studied using the finite element method. The accuracy of the theoretical method is validated by comparing with the experimental results. The behavior of specimen under different loading conditions is analyzed. Then, based on the finite element method, the comparison of mechanical behavior under three typical loading conditions is studied. The results show that the difference on bearing capacity will become larger with the increase of steel area to concrete area ratio. For the core concrete loaded specimen with lower steel area-to-concrete area ratio, whose bearing capacity is the lowest, but its ductility is very good. With the increase of the steel yield strength, the bearing capacity will increase evidently for specimen loaded simultaneously. While for the specimen with only core concrete loaded, the steel yield strength has little influence except increase of ductility.

scholarly journals Simulation of Loads on the Carrying Structure of an Articulated Flat Car in Combined Transportation

2018 ◽  
Vol 7 (4.3) ◽  
pp. 140 ◽  
Author(s):  
Alyona Lovska ◽  
. .
Keyword(s):  
Mathematical Modeling ◽  
Finite Element Method ◽  
Structural Strength ◽  
Construction Material ◽  
Dynamic Loads ◽  
Capacity Analysis ◽  
The Finite Element Method ◽  
Solid Works ◽  
Loading Modes ◽  
Strength Modeling

The article presents the findings of the research into loading on the carrying structure of an articulated flat car under combined transportation. The refined data of dynamic loads on the carrying structure of a flat car under train ferry transportation, as well as the main loading modes in rail track operation were determined by mathematical modeling. The adequacy of the models developed was checked with an F-test. The results of the calculation conducted made it possible to conclude that the hypothesis on adequacy of the models is not rejected. The peculiarities of the structural strength modeling for a flat car within operational loading diagrams are given. The graphics works were conducted in Solid Works. The capacity analysis was conducted by the finite element method in CosmosWorks. The 09G2S steel was used as a construction material. It is determined that the maximum equivalent loads in the flat car support structure do not exceed the admissible loads. Results of the research can be used in designing coupled flat cars to provide their capacity at mixed transportation. 

Structural Analysis of Agricultural Truck Frame Based on the Finite Element Method

2010 ◽  
Vol 37-38 ◽  
pp. 1236-1239
Author(s):  
Yun Wang ◽  
Bin Lin
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Structural Modification ◽  
Response Analysis ◽  
The Finite Element Method ◽  
Transient Dynamic Analysis ◽  
Frame Design ◽  
Harmonic Response ◽  
Harmonic Response Analysis ◽  
External Incentives

Frame is an important truck part to connect and support engine, transmission, carriage and cab etc. It is important to analyze strength, stiffness and dynamic characteristics for frame design. This paper developed static analysis of a specific agricultural truck frame under two conditions of full load bending and reverse. The corresponding suggestions of structural modification were proposed. Then the dynamic response of truck frame caused by the external incentives was studied, namely harmonic response analysis and transient dynamic analysis. The paper not only analyzed whether the truck frame met the strength requirements, but also proposed the corresponding solutions for the possible cases of fatigue fracture and stress overloaded of the frame.

Survey of aircraft structural dynamics non-linear problems and some recent solutions

2011 ◽  
Vol 115 (1173) ◽  
pp. 653-668 ◽  
Author(s):  
J. L. Pérez ◽  
L. H. Benítez ◽  
M. Oliver ◽  
H. Climent
Keyword(s):  
Structural Dynamics ◽  
Aircraft Design ◽  
Dynamic Loads ◽  
The Finite Element Method ◽  
The Past ◽  
Non Linear ◽  
Environmental Vibration ◽  
Structure Flexibility ◽  
Linear Problems ◽  
Dynamics Problems

Abstract Structural dynamics is a key discipline in aircraft design and certification. The realm of structural dynamics includes problems in which structure flexibility is important, such as dynamic loads (landing, taxi, gust, turbulence...), but it also includes other areas like environmental vibration or impacts technology. This is closely related with its sister discipline Aeroelasticity. Linearity has been the cornerstone assumption in aircraft design engineering solutions. In the past, linearity allowed to solve many structural dynamics problems that otherwise would have been unaffordable. Nowadays, the necessity of highly optimised structures, combined to an increase of computer power, has made this assumption to be reconsidered. This paper presents a wide survey on non-linear topics in structural dynamics and the way they have been solved at EADS-CASA (Airbus military) in the past 25 years. Although the paper has been mainly focused on numerical simulation using the Finite Element Method technique, component tests and full aircraft tests are also presented.

NUMERICAL ANALYSIS OF KINETIC ENERGY PROJECTILE SABOT STRUCTURE INFLUENCING THE ARMOUR PENETRATION DEPTH. PART II – ANALYSIS OF PROJECTILE DEVELOPING OPTIONS

2021 ◽  
Vol 156 (1) ◽  
pp. 7-28
Author(s):  
Tomasz BŁASZCZAK ◽  
Mariusz MAGIER
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Numerical Analysis ◽  
Kinetic Energy ◽  
Penetration Depth ◽  
Numerical Calculations ◽  
Dynamic Loads ◽  
Simulation Environment ◽  
The Finite Element Method ◽  
Terminal Ballistics

Numerical calculations were used to investigate influence of sabot structures of kinetic energy projectiles into the armour penetration depth. Areas of sabot structure for possible optimization and the influence of various sabot materials on the projectile combat efficiency were indicated. The analysis was performed using the finite element method in the Solidworks Simulation environment. It allowed examination of dynamic loads the sabot is subjected to at the time of the shot. Impact of various sabot materials and projectile geometry modifications on the strength of penetrator - sabot connection was investigated. Distributions of dynamical loads for penetrator-sabot connections were simulated and visualised. Calculations on terminal ballistics were performed for some options of the structure. It allowed identification of development trends for this type of ammunition.

Finite element modelling of the shear lag effects in an HSS welded to a gusset plate

1995 ◽  
Vol 22 (4) ◽  
pp. 651-659 ◽  
Author(s):  
C. Girard ◽  
A. Picard ◽  
M. Fafard
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Finite Element Modelling ◽  
Finite Element Analyses ◽  
Shear Lag ◽  
The Finite Element Method ◽  
Gusset Plate ◽  
Element Modelling ◽  
Lag Effects ◽  
Hollow Section

The behavior of a typical connection at the ends of an HSS bracing member was investigated with the finite element method. The connection is effected by means of a gusset plate welded into slots in the HSS member. The paper presents the results of the finite element analyses of 25 connections which differed in the values assigned to the three main parameters that were considered. The finite element results are compared with the provisions of CSA Standard S16.1-M89, and some adjustments to these provisions are recommended. Key words: connections, steel, shear lag, finite element, hollow section, gusset.

Vibration Analysis of a Micromachined Modal Gyroscope Based on Elastic Body

2011 ◽  
Vol 130-134 ◽  
pp. 4236-4239
Author(s):  
Zheng Wang ◽  
Xiao Sheng Wu ◽  
Xiao Jun Hu ◽  
Wen Yuan Chen ◽  
Wei Ping Zhang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Elastic Body ◽  
Vibration Analysis ◽  
Theoretical Foundation ◽  
The Finite Element Method ◽  
Working Mechanism ◽  
Micromachined Gyroscope ◽  
Rate Sensor ◽  
Mass Spring

Micromachined modal gyroscope based on elastic body (MMGEB) is a novel kind of rotating rate sensor, which has large stiffness and robust resistance to shake and strike because there is no evident mass-spring component in its structure. In this paper, the model and working mechanism of MMGEB are proposed first. The modal analysis, the harmonic analysis and Coriolis analysis for the model by the finite element method (FEM) have been conducted. The research in the paper provides theoretical foundation for realizing this micromachined gyroscope.

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