Category - Aerospace & Defense

22
Jun

Finite Element Analysis of a UAV Wing

AeroVironment’s Global Observer is an unmanned aircraft with the wingspan of a Boeing 767 but less than 10% of the weight designed to provide communications and sensing for flights lasting up to one week at up to 65,000 feet. With a maximum wing loading of only 3.5 pounds per square feet, the wingtip deflects greater than 22 feet at its design limit load.

MSC Nastran was utilized to develop nonlinear stress, structural dynamic and aeroelastic finite element models. The structural dynamics model was correlated to a ground vibration test, both of which had to accommodate the apparent mass of the air, which is atypical. The ultimate test of the nonlinear stress model was correlation with the static wing load test.

15
Jun

Structural Analysis and Model Validation for the James Webb Space Telescope ISIM Structure

The James Webb Space Telescope is a highly sensitive instrument that is positioned using a precise optical metering support structure. This supporting structure is made from composites to reduce thermal expansion effects while reducing weight. The instrument and structure are subjected to temperatures ranging from ambient during launch to cryogenic temperatures while in orbit. Dynamic and static loads are encountered during launch and in operation respectively.

19
May

Weight Reduction of an Engine Mount

Trelleborg is a global automotive supplier that offers sealing, damping, and protection solutions to the automotive industry. To reach their goal of complying with CO2 regulation, Trelleborg uses material modeling and simulation software.   Challenge To comply with CO2 regulations (2015: 130g   2020: 95g) To reduce the average weight of a car by 200 kg …

2
May

Acoustic Simulation Helps Airbus Reduce Aircraft Noise

Airplane noise is an important factor for airlines to consider due to several industry changes in recent years. Increased competition, more air traffic, and construction of communities near airports has created several new issues for aerospace engineers to take into consideration, including quality perception from customers and new regulations from both local and federal governments.  Turbofan …

27
Apr

Acoustic Simulation for the Aeronautical Industry

  Acoustic Simulation For the Aeronautical Industry   With the expansion of air travel around the world, competition between airlines has become much tougher. Airplane companies are under constant pressure from governments around the world to reduce noise and from consumers to reduce the cost of air travel. For many companies, noise is a chronic …

18
Apr

Acoustic Simulation for Spacecraft Launch

Launching a rocket into the sky is not an easy thing. There are several thousands of unimaginably complex engineering processes occurring in the background, the competition is getting tougher every day, and companies frequently only have one chance to get the launch sequence right. So what is hindering efforts to launch more powerful rockets in …

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