scholarly journals DESIGN, MANUFACTURE, DYNAMIC TESTING, AND FINITE ELEMENT ANALYSIS OF A COMPOSITE 6U CUBESAT

2016 ◽  
Author(s):  
Yanina Soledad Hallak
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Dynamic Testing ◽  
Element Analysis

Evaluation of Dynamic Performance of Aircraft Seats for Larger Passenger Population Using Finite Element Analysis

2012 ◽  
Author(s):  
Prasannakumar S. Bhonge ◽  
Rasoul Moradi ◽  
Hamid M. Lankarani
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Structural Integrity ◽  
Dynamic Testing ◽  
Dynamic Performance ◽  
General Aviation ◽  
Element Analysis ◽  
Sled Test ◽  
Passenger Seat ◽  
Test Parameters

Dynamic aircraft seat regulations are identified in the Code of Federal Regulations (CFR), 14 CFR Parts § XX.562 for crashworthy evaluation of a seat in dynamic crash environment. The regulations specify full-scale dynamic testing on production seats. The dynamic tests are designed to demonstrate the structural integrity of the seat to withstand an emergency landing event and occupant safety. These tests are carried out on a 50th percentile Hybrid II Anthropomorphic Test Device (ATD) representing average 50 percent of human population. In this study, the dynamic performance of seats are evaluated for larger passenger population for both transport and general aviation seats. For this, Finite Element Analysis (FEA) of an aircraft seat model is analyzed by utilizing a 50th percentile e-ATD and validated with a 50th percentile ATD sled test results. Then the effect of a 95th percentile standard ATD in an aircraft passenger seat is investigated using FEA. Comparison of the 50th percentile and the 95th percentile electronic ATD models (e-ATDs) is carried out on the test parameters. This includes the restraint loads, the floor reactions and the head paths. Based on the comparison it is concluded that the seat loads go up in the range of 20 to 30% if designed for larger passenger population.

Finite Element Analysis and Dynamic Testing for Hard Gear Cutting by Gear Hobbing Machine

2010 ◽  
Vol 142 ◽  
pp. 238-242
Author(s):  
Ming Hui Liu ◽  
Xiu Lian Liu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Dynamic Testing ◽  
The Body ◽  
Pulse Excitation ◽  
Element Analysis ◽  
Design Improvement ◽  
Gear Hobbing ◽  
Excitation Method ◽  
Machinery Design

While cutting big modulus hard gear with gear hobbing machine YB3180H, the vibration is big and the efficiency is low. To improve this situation, the pulse excitation method is used in analyzing the six steps modal of the gear hobbing machine. Through comparing with the body test modal analysis result, correcting and establishing 3 D ANSYS modal of the body, and the weakness of the machine tool vibration is confirmed by finite element analysis of 3D modal. the theoretical basis can be provided to the machining, the machinery design, improvement and optimization of the machine body.

Finite element analysis on dental implant[ndash ]supported prostheses without passive fit

2002 ◽  
Vol 11 (1) ◽  
pp. 30-40 ◽  
Author(s):  
Chatchai Kunavisarut ◽  
Lisa A. Lang ◽  
Brian R. Stoner ◽  
David A. Felton
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Dental Implant ◽  
Element Analysis ◽  
Passive Fit
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