Fairul Adzreen Bin Abd Wahab

Finite Element Analysis of High Subsonic Air Target Drone Wing Structure (High Swept Configuration)

2009-02-13T21:45:00.001-08:00

Project Background

In the world of technology and precision, it is very important for a structure to be analyzed first before they are to be produced. This is mainly to ensure that the structure is capable of surviving and retaining its shape without failure upon application of forces that applied on them. An Unmanned Aerial Vehicle (UAV) for target drone purpose is being designed and this project is mainly focused on the finite element analysis (FEA) of the wing structure. The wing that will be analyzed uses high swept configuration in which there is an angle between the fuselage and the wing, instead of the wing perpendicular with the fuselage (refer to figure 1). Composite material is employed for the wing structure and limit load during steady longitudinal flight is considered.

Figure 1: UAV with high swept configuration wing structure

The main reason for wing sweep is to reduce the drag when the wing at high speeds. It is occasionally done to adjust the center of lift when the wing cannot be attached in the ideal position for some reason. The wing structure will be analyzed using finite element analysis. Finite element analysis is an analytical tool for predicting the responses of certain engineering systems. Its appeal lies in its use for predicting the field quantities of complicated structural shapes under general loading. The use of computer is essential in the application of finite element method involving large and complex structure, thus a few softwares such as MSC.PATRAN, MSC NASTRAN and DASSAULT SYSTEMES CATIA will be used. These softwares are capable of interacting with each other and each has its own role to play.

The structure of wing for high subsonic air target drone that has been produced will be imported into MSC.PATRAN and then analyzed by using finite element analysis which will be discussed in further detail in the upcoming sections. In simple words, after the results of the analysis obtained, we will know at which position (node) on the wing structure that experiencing maximum amount of load(s) that may lead to failure of the structure on that particular node.

Objective

The main objective of this project is to perform the finite element modeling and analysis of static strength behavior of wing structure of an Unmanned Aerial Vehicle (UAV) for target drone purpose. This will determine whether the structure can sustains combination of loads during steady longitudinal flight condition.

Significant of Project

This project is very significant as it helps us to create a wing structure that can sustain combinations of loads under certain condition without manual calculation which involves large amount of complex calculations. By using finite element analysis with the helps of computer softwares such as MSC.PATRAN, it allows us to identify the location of the wing structure that experiences maximum amount of load(s) and thus failure of the structure can be avoided by further improving the structure according to the results of the analysis so that a much better wing structure can be produced. This project will also reduce the cost but still meets specification of structure desired.

Scope of Work

This project mainly focused on the finite element modeling and analysis of static strength behavior of the wing structure of a UAV which mainly consists of spars, ribs and skin. The wing that will be analyzed is the wing that uses high swept configuration in which that there is an angle between the fuselage and the wing, instead of the wing perpendicular with the fuselage.

Most of the analysis will be done by incorporating MSC.PATRAN and MSC.NASTRAN software and modification of the wing structure will uses CATIA software.

There are many types of stress that sustain by the wing structure during the operation of the UAV such as residual strength, static strength, sonic fatigue strength etc. But the analysis for this project will be focused on static strength analysis only.

Current progress : Meshing and applying boundary conditions
(This post will be updated once these processes completed)

PRELIMINARY RESULTS
This is not final result as I'm currently working on the final stage of this project.

Prototype of Portable Hand Exercises Device For Paralytic Athletes (REGISTERED).

2009-02-12T19:35:00.000-08:00

This is a design project proposed by MSN Malaysia, in which my group have to design and fabricated a Portable Hand Exercises Device For Paralytic Athletes.

This device was designed by using CATIA V5 software. The portable hand exercises device are named as PE1 (Paralytic Exercises Device).

This particular exercise (left) affects on body muscles (triceps, chest, shoulder). The right picture is an example of biceps exercise using power twister spring.

Attachment mechanism used and the disassembly view of PE1 device.

VIDEO DEMONSTRATION OF PE1 DEVICE
(BEFORE PAINTING AND FINISHING TOUCH)

PLEASE SEND ANY FEEDBACK TO
fairuladzreen@gmail.com

GREETING

2009-01-14T19:20:00.001-08:00

Dear visitor, I'm Fairul Adzreen Bin Abd Wahab, BEng (Hons.) Mechanical, from Universiti Teknologi MARA, UiTM Malaysia.

This blog is for the benefits of my career. Major projects involved, extra curricular activities joined etc.

>>DOWNLOAD MY RESUME AND TRANSCRIPT<<

DESIGN OPTIMIZATION OF PORTABLE TYRE PUMP

2008-04-16T22:57:00.000-07:00

Abstract

In this modern era, Computer Aided Design (CAD) software has become a compulsory need in engineering. Generally, CAD is the use of computer technology to aid in the design of a product. Current packages range from 2D vector base drafting systems to 3D solid and surface modelers. Thus, it makes this KJM573 CAD, CAE and CAM course an important course for engineering students. This course requires us to produce a mini project in which a device is to be chosen and further improve it. We found that portable tyre pump can be considered as an important device that a vehicle must bring especially motorcycle and bicycle as it can be used to fix a punctured tyre. So, it is important for us to take this device, redraw and improved it because there is a quote, “Engineer is the one who converts problems into solutions”, so we are about to further improved the portable tyre pump for a better and more efficient usage.

Objective
Nowadays, Computer Aided Design (CAD) software has become one of the most powerful tools in the engineering design. Thus it is very important for me to well adapt with it. The objectives of this mini project are:-

1-To be CATIA’s best friends by mastering the use of CATIA software. It is achieved by research and self-explore of the software.
2-To use CATIA (due to its flexibility) in order to produce many type of complex components.
3-Expose to real industry type of work and to have a clearer view how important CAD, CAE and CAM in industry.

Design Statement
In order to achieve the objective of this project, I have made an extended research on several sources such as magazines, newspapers and internet to find the most suitable product to re-drawn/ re-sketch in CAD software (CATIA). This device involves spring, cylinder, shaft, nut, stickers, tap and thread etc.

Methodology
The physical design of this portable tyre pump was done by using powerful CAD software, DASSAULT SYSTEMES CATIA V5R17.

FOR THE FULL REPORT PAPER OF THIS PROJECT WHICH CONTAIN OF FULL METHODOLOGY AND DISCUSSION, PLEASE EMAIL ME fairuladzreen@gmail.com.