Please use this identifier to cite or link to this item: `https://hdl.handle.net/10356/158331`
 Title: Development of a finite element-based computer program to determine the CG and area/mass moments of inertia of solids of complicated geometries Authors: Ng, Lucas Jian Yong Keywords: Engineering::Mechanical engineering::Mechanics and dynamicsEngineering::Computer science and engineering::Computer applications::Computer-aided engineeringEngineering::Computer science and engineering::Data::Coding and information theory Issue Date: 2022 Publisher: Nanyang Technological University Source: Ng, L. J. Y. (2022). Development of a finite element-based computer program to determine the CG and area/mass moments of inertia of solids of complicated geometries. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/158331 Project: C105 Abstract: This FYP (Final Year Project) deals with the development of a finite element-based computer program to determine the center of gravity (CG) and area/mass moments of inertia of solids of complicated geometries. The calculation of these properties is important in the design and analysis of engineering structure and components. There are analytical formulas to calculate these properties for simple geometries such as sphere, cylinder, and cubes. The geometry of components encompassing in real life design is quite complicated. One can break down the complex geometry to simpler shapes and apply the analytical formulas. Often this could be very cumbersome, time consuming and result is often not accurate. Numerical Method is another approach that one can used. In this project, finite element method is used to determine the geometric properties. A computer program is developed to determine these properties. The code for calculating the geometric properties is being developed in MATLAB. The logic of the program uses both shape functions and numerical integration to achieve its result. This allows to calculate the summation of all the desired geometric properties of the finite element. The input data for the geometrical shape (which is used as the input to the MATLAB code) is generated in ANSYS. The geometrical model for the test generation is either created in ANSYS or created in SOLIDWORKS and imported into ANSYS. The input data is then cleaned by using Excel VBA before inputting into MATLAB. To verify the MATLAB code that was developed, a few applications have been considered. These includes sphere, cylinder, gears, and crankshaft. The results have been compared with the geometrical problems given by ‘VSUM’ command of ANSYS. The program is seen to give accurate values. Therefore, the main objective of this research is to develop a program in MATLAB. It will be able to compute geometric properties of a 3-D object that is imported by ANSYS. A learning objective was done by developing a program for the use of 2-D applications. URI: https://hdl.handle.net/10356/158331 Schools: School of Mechanical and Aerospace Engineering Fulltext Permission: restricted Fulltext Availability: With Fulltext Appears in Collections: MAE Student Reports (FYP/IA/PA/PI)

###### Files in This Item:
File Description SizeFormat
FYP_C105_U1821364K_NG_JIAN_YONG_LUCAS.pdf
Restricted Access

#### Page view(s)

58
Updated on Oct 3, 2023

13
Updated on Oct 3, 2023

Check