Ideally, the vibration test fixture should be designed to be: first, as light as possible and second, as stiff as possible. But in the real vibration testing world, there are a lot of constraint that we need to consider and then we need to find and optimum point, that can balance all required aspects such as cost, timeline, etc.
While it is true that electric cars lose battery capacity over time. The continuing advances in technology in precise degradation are difficult to define as a whole. The main factor is all down to the owner and how they treat the battery. The way energy is added, the way it is removed. And how many charging cycles, the battery experiences look after your battery and your battery will look after you.
Shock and vibration resistance gives information concerning the robustness of the mechanical design of a device. The methods for evaluating the vibration resistance are defined in IEC 60068-2-6 and IEC 60068- 2-64. Electrical and electronic equipment are exposed to vibration in many applications and must withstand this without any degeneration, or even failure, in their function. Therefore, manufacturers of electrical and electronic devices put a great deal of effort into ensuring their instruments are prepared for such applications.
What are transient thermal measurements and structure functions, their advantages, and how we use them tcalibrate and improve our semiconductor thermal models, Simcenter Flotherm is a unique combined test and simulation solution for automatic calibration of semiconductor package thermal models that maximizes simulation accuracy. This helps engineers to better optimize electronics thermal design for reliability, reducing field failures, and to reduce overdesign-linked costs.
Measurement equipment calibration can be carried out on different types of instruments across different sectors. Electrical calibration refers to the process of verifying the performance of any instrument that measures or tests electrical parameters such as: voltage, current, resistance, inductance, capacitance, time and frequency. Mechanical instruments are subject to drift due to regular usage, mechanical shock and exposure to varying atmospheric conditions, as such mechanical calibration is needed.
The benefits of calibration include improving safety as well as saving money and increasing profitability by avoiding the costs of false acceptance and rejection of products, increasing production efficiency, and extending the life of the equipment. Since the standards of accredited calibration labs are set really high, you can be confident of the accuracy levels of the calibrations.
Sine Vibration Testing may be considered as the most basic vibration testing method used. This type of vibration testing requires less complex parameters compare to other type of vibration testing. Knowing the nature of sinusoidal signal, makes this type of vibration testing easier to understand and to get familiar with. Though, easier to understand does not make it less important compare to other type of vibration testing. Sine vibration testing may still be at the top rank when we are thinking of dynamic characteristic measurement.
Instrument calibration ensures that the instruments perform with high accuracy without compromising the final quality of the product. They perform best when they are calibrated following the manufacturers’ recommendations. Several factors may affect calibration, which will further affect the end quality, rendering the objective of calibration useless. Three of these factors are discussed in this article.
Simcenter solutions offer an integrated approach to test preparation, modal testing, modal analysis, numerical model correlation, model updating, and model use. from impact testing on small structures to large scale campaigns using hundreds of measurement channels, puts a tradition of cutting-edge expertise at your fingertips as you maximize testing efficiency.
Every human being is innately different and so is our cough. 7.5 billion people. 7.5 billion different coughs. There’s been plenty of research into the human cough. Enough, in fact, to tell us what an average cough from an adult should look like. It’s this average cough that’ll help us uncover some key insights behind how cough droplets travel and move in an aircraft cabin.
Simcenter Testlab Interior Sound Source Localization is a complete solution for quick and accurate identification and ranking of sound sources in highly complex interiors. Siemens Digital Industries Software has designed a number of cutting edge sound source localization solutions to increase overall testing productivity. Finding the root cause of noise through transfer path analysis helps you identify the main sound sources and transfer paths, both airborne and structure- borne.
In the case of the power adapters that NXP Semiconductors’ Smart Power Division are developing thermal considerations have really come to the fore, driven by the trends we see in mobile power adaptors, which are getting smaller and have a higher output power. Thermal limits are now constraining all aspects of the design.
Karma Automotive established a strategic partnership with Simcenter Engineering and Consulting services to meet NVH performance targets and implement state-of-the-art NVH testing and simulation processes. Simcenter™ software uniquely combines system simulation, 3D CAE and test to help you predict performance across all critical attributes earlier and throughout the entire product lifecycle.
John Wilson, technical marketing engineer at Mentor, a Siemens Business, explains how junction temperatures have a direct correlation to product reliability and performance. Using tools such as Simcenter™ T3STER™ and Simcenter™ Flotherm™ enable users to tackle the challenge of designing for reliability without the need for prototyping.
Simcenter Flotherm - The goal of electronics thermal design is to accurately predict component junction temperatures to ensure that they are within specification. CFD allowed designers to predict the flow of cooling air, and include 3D thermal simulations of the board and components, increasing the need for more accurate component level modeling.
Revolutionizing productivity, Electra Meccanica moved quickly, transforming a napkin sketch into a digital NX™ software design in a matter of days, then using Simcenter™ software to optimize and validate the performance of the all-electric SOLO. Finally, using NX CAM and 3D printing, Electra Meccanica built its dream car.
Reliability and Validity these two terms are sometimes used interchangeably in research and evaluations. Reliability and validity are concepts used to evaluate the quality of research. They indicate how well a method, technique or test measures something. Reliability is about the consistency of a measure, and validity is about the accuracy of a measure.
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