Siemens Digital Industries Software invites you to join us for a free, educational online master class: Environmental Testing for Aerospace from February 24 - March 17, 2022.
Aerospace and defense industries are in constant transition, developing new products embracing new technologies and materials, in even shorter times, while still maintaining the highest levels of performance and reliability.
This puts high pressure on testing teams to perform the qualification tests in a shorter time, providing more insights than before and integrating better with simulation teams.
This online master class covers all aspects of vibration and acoustic qualification testing for components as well as full structures. Next to this, more advanced topics like multiple axis testing and tailored testing are explained. There are also dedicated sessions on modal testing, model correlation, virtual testing and micro-vibrations.
Seven 60-minute morning sessions are scheduled.
Join our online master class and receive a full update on the qualification testing process with best-in-class methods available, including connection with simulation applications.
For any further information please contact email@example.com
Mostapha Choukri and Raphael Hallez have together more than 40 years of experience in the aerospace & defense industry. Mostapha has more than 20 years of experience at Siemens, started in product development with a focus on NVH testing solutions, and later moved to provide professional services for the automotive and aerospace industries. Raphael is an aerospace testing expert. With nearly 20 years at Siemens, he has been involved in many testing and simulation projects with aviation, space, and defense companies.
Dynamic environmental testing of components
Certification and qualification of products require specific dynamic tests using external excitation - shock, vibration, and noise. Understanding the key parameters behind any control algorithm is critical to a successful test.
Vibration qualification testing of aerospace components and satellites
Mechanical qualification testing takes place on a very expensive model/prototype or the actual spacecraft, with a significant risk of damage to the hardware. We will discuss how this can be done with full confidence without compromising the integrity of the scarce and expensive engineering qualification model or the actual flight model.
Tailored testing with mission synthesis to avoid over- and under testing
The purpose of mission synthesis is to design the optimal test. A balance between severity and accuracy needs to be found. The test should give confidence that it is severe enough to produce those failures likely to occur under normal operating conditions while avoiding too high-test levels that tend to result in costly over and under-testing design of the item. The goal of mission synthesis is to design the optimal test. A balance between severity and accuracy needs to be found. The test needs to give the confidence that it is severe enough to produce those failures that are likely to occur during normal operating conditions.
Acoustic Qualification Testing of Aerospace Components and Satellites
The noise levels generated at launch can reach levels up to 146dB or higher inside the fairing and cause structural damages and jeopardize the functionality of instruments and subsystems. Therefore, launcher authorities require spacecraft also to be qualified for acoustic loading. Both traditional (RFAX) and the new testing method (DFAN) will be discussed.
More realistic, advanced and accelerated vibration with MIMO testing
The need for time-efficient testing procedures and the guarantee of accurate replication of the operational environment are two driving factors in the environmental testing community. MIMO control strategies for dynamic environmental testing can provide the required flexibility to design test campaigns that safely comply with these two key drivers.
Modal survey for CAE-model correlation and virtual shaker testing for de-risking TEST campaigns
To understand the structural dynamics of a spacecraft, the program sometimes requires a Modal survey test. This test aims at test-validating the spacecraft Finite Element structural dynamics model. This model is necessary for the Launcher Coupled Loads analysis process, which assesses the risk of launch load damage. In the field of vibration testing, the interaction between the spacecraft being tested and the shaker used to perform the test is a critical issue, because the dynamics of the shaker often couples with that of the test object making its behavior during the physical tests unpredictable. Simulation methods such as “Virtual Shaker Testing” are being developed to be able to foresee these testing difficulties and take countermeasures before running the actual program.
Innovative methods for micro-vibrations performance assessment
High-end optical imaging sensors and lasers are used more and more in satellites. These sensors have high requirements in terms of stability to provide high-quality images. However, mechanical devices on the spacecraft such as reaction wheels for attitude control can cause micro-vibration disturbances leading to blurred images. Therefore, scientific and earth observation missions call for stringent requirements with regard to the micro-vibration environment on-board of a spacecraft. In this session, we will discuss traditional and novel experimental-based methods to assess the performance of micro-vibration sources.