Weight Optimization of Fork and Axle of Main Landing Gear for an Unmanned Aerial Vehicle by Finite Element Analysis

2017 ◽  
Author(s):  
Johnson Jose ◽  
Ramesh M ◽  
G Venkatesan ◽  
M Khader Basha
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Unmanned Aerial Vehicle ◽  
Landing Gear ◽  
Weight Optimization ◽  
Element Analysis ◽  
Aerial Vehicle

scholarly journals Evaluation of Mechanical Strength Characteristics of Double Ducted Unmanned Amphibious Aerial Vehicle using Finite Element Analysis

2019 ◽  
Vol 4 (2) ◽  
pp. 420-431 ◽  
Author(s):  
Gokul Raj P. ◽  
Balasubramanian Esakki ◽  
Surendar Ganesan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Land Surface ◽  
Water Surface ◽  
Structural Strength ◽  
Strength Characteristics ◽  
Element Analysis ◽  
Vehicle Structure ◽  
Payload Capacity ◽  
Aerial Vehicle

Unmanned Aerial Vehicles are extensively exploited for diverse applications importantly surveillance, defence and military, photography. Development of unmanned amphibious vehicle with integrating features of hovercraft principles and multirotor to navigate along and above the water surface, land surface and flying in the air is challenging demand. This article presents conceptual design of amphibious vehicle for the payload capacity of 7 kg with an endurance of 20 minutes and provision for mounting water sampler to collect water samples in remote water bodies. Structural strength characteristics of each part of the amphibious vehicle and integrity of same are analysed by Finite Element Analysis. FEA results indicated that the designed amphibious vehicle structure is well within the stress limit and minimal displacement is obtained. Based on structural analysis materials for various parts of the amphibious vehicle are determined and integrated structure is analysed.

scholarly journals The Multi-Parametric Weight Optimization of a Hydraulic Actuator

Actuators ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 60
Author(s):  
Luigi Solazzi ◽  
Andrea Buffoli ◽  
Raffaele Formicola
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Minimum Weight ◽  
Hydraulic Cylinder ◽  
Point Of View ◽  
Weight Optimization ◽  
Hydraulic Actuator ◽  
Working Pressure ◽  
Element Analysis ◽  
Very High

This research was derived from the experimental observation that hydraulic actuators are positioned on machines that are subjected to movements and whose dynamic actions, the accelerations, are very high; it is acceptable to think of an actuator for an anthropomorphic robot. From this point of view, the weight of the actuator plays a fundamental role in the performance of the machine. In order to face this problem, a real hydraulic cylinder has been designed (for use on an earth moving machine) both analytically (adopting the theories of continuous mechanics) and numerically through finite element analysis. The results obtained were then generalized by determining functions that in relation to specific values of the variables, such as working pressure, allow one to determine the minimum weight of the component and its geometric configuration. The functions also made it possible to identify the most significant contributions to the overall weight of the component and therefore the elements on which to focus the subsequent lightening process. In particular, the greatest contribution is made by obtaining relations that are completely general and therefore adaptable to different case studies.

Comparison of Surrogate Modeling Methods for Finite Element Analysis of Landing Gear Loads

2020 ◽  
Author(s):  
Joshua Hoole ◽  
Pia Sartor ◽  
Julian D. Booker ◽  
Jonathan E. Cooper ◽  
Xenofon Gogouvitis ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Surrogate Modeling ◽  
Landing Gear ◽  
Element Analysis ◽  
Modeling Methods

Simulation of a CH-47 Water Crash Event

2002 ◽  
Author(s):  
Jonathan W. Gabrys ◽  
Joshua K. Schatz
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Landing Gear ◽  
Lower Portion ◽  
Element Analysis ◽  
Fluid Structure ◽  
The Finite Element Analysis ◽  
Analysis Package ◽  
Aircraft Crash

According to a Naval Aircraft Crash Report for 1972 to 1981, 45.3 % of helicopter mishaps occurred on water. For these incidents, the landing gear would not be effective. Instead, the lower portion of the helicopter is directly involved. Understanding how a helicopter reacts to such loading is critical for designing them to survive these incidents. This analysis investigates a CH-47 water crash event for various impact-speeds and predicts pilot accelerations during each event. The finite element analysis package LS-DYNA was used to simulate the fluid structure event between a full CH-47 model and water.

Finite Element Analysis Applied to Radial Aircraft Tyre Engineering

1996 ◽  
Vol 210 (1) ◽  
pp. 109-116 ◽  
Author(s):  
R L'Anson ◽  
J Peña ◽  
R Postic ◽  
J-P Barret
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Contact Pressure ◽  
Landing Gear ◽  
Efficient Tool ◽  
Element Analysis ◽  
Design Studies ◽  
Pressure Distributions ◽  
Wheel Rim ◽  
Contact Pressures

The application of finite element analysis (FEA) to the design of radial aircraft tyres is shown to be an effective and efficient tool which can be used for conducting tyre and tyre wheel design studies. This paper describes the specific conditions under which FEA is applied by Michelin to the radial aircraft tyre, and presents an example of its application to the analysis of the tyre and wheel rim contact pressures. Model definition, calculated tyre displacement and rim contact pressure distributions are included. Validation of the FEA prediction against experimental results is demonstrated for a main landing gear tyre.

Sign in / Sign up

Export Citation Format

Share Document