Electromagnetic Compatibility Testing for Space Systems

2021 ◽  
pp. 97-126
Author(s):  
Panagiotis K. Papastamatis ◽  
Eleni P. Nicolopoulou ◽  
Ioannis F. Gonos
Keyword(s):  
Product Design ◽  
Electromagnetic Compatibility ◽  
Design Space ◽  
Space Systems ◽  
Risk Of Failure ◽  
Increased Sensitivity

Electromagnetic compatibility has emerged in the last decades as one of the most important aspects of product design. Space equipment, in particular, due to their increased sensitivity requirements and a greater risk of failure, are required to comply with a variety of EMC requirements. The scope of this chapter is to provide a detailed overview of these requirements according to the two main standards applicable, MIL-STD461G and ECSS-E-ST-20-07C, describing the proposed methodologies, the associated testing instrumentation, and the tailoring capabilities. The limitations of these methodologies and relative research, aiming to validate or improve them, are also presented highlighting potential deficiencies. This chapter aims to serve as a compact guide to EMC testing of space equipment according to the requirements of two of the most active organizations of space engineering.

Radio Frequency Support for Space Systems Based on Multi-Satellite Constellations Taking into Account the ITU-R Requirements and the WRC-19 Results

2021 ◽  
Vol 8 (4) ◽  
pp. 72-76
Author(s):  
А. А. Talanov ◽  
◽  
S. А. Fedotov ◽  
А. М. Stepanov ◽  
◽  
...  
Keyword(s):  
Radio Frequency ◽  
Frequency Spectrum ◽  
Communication Systems ◽  
Electromagnetic Compatibility ◽  
Satellite Communication ◽  
Space Systems ◽  
Satellite Constellations ◽  
Broadband Internet ◽  
State Commission ◽  
Radio Frequency Spectrum

Deployment of space systems based on multi-satellite constellations to provide broadband Internet access and communication services acutely raises the question of their radio frequency support including issues of electromagnetic compatibility (EMC) between competing space systems using multi-satellite constellations (StarLink, OneWeb, Kuiper, etc.), their EMC with traditional space systems (satellite communication systems that employ spacecraft in geostationary and non-geostationary orbits, space systems of other services), as well as regulatory issues of entering into service and staged deployment of space systems. The article formulates the problematic issues of radio frequency support of modern space systems taking into account the trends of satellite constellations deployment and proposes the solutions with consideration to international and national requirements in the regulation of radio frequency spectrum including the ITU requirements and the requirements of Russian State Commission for Radio Frequencies. The paper shows the ways to share the radio frequency spectrum to meet new requirements of the World Radiocommunication Conference 2019 (WRC-19).

scholarly journals Cyber-Empathic Design: A Data Driven Framework for Product Design

2016 ◽  
Author(s):  
Dipanjan D. Ghosh ◽  
Junghan Kim ◽  
Andrew Olewnik ◽  
Arun Lakshmanan ◽  
Kemper E. Lewis
Keyword(s):  
Product Design ◽  
Structural Equation ◽  
Design Space ◽  
Equation Modeling ◽  
Design Decision ◽  
Interaction Data ◽  
Model Framework ◽  
Empathic Design ◽  
Product Interaction

One of the critical tasks in product design is to map information from the consumer space to the design space. Currently, this process is largely dependent on the designer to identify and map how psychological and consumer level factors relate to engineered product attributes. In this way current methodologies lack provision to test a designer’s cognitive reasoning and could therefore introduce bias while mapping from consumer to design space. Also, current dominant frameworks do not include user-product interaction data in design decision making and neither do they assist designers in understanding why a consumer has a particular perception about a product. This paper proposes a new framework — Cyber-Empathic Design — where user-product interaction data is acquired via embedded sensors in the products. To understand the motivations behind consumer perceptions, a network of latent constructs is used which forms a causal model framework. Structural Equation Modeling is used as the parameter estimation and hypothesis testing technique making the framework falsifiable in nature. To demonstrate the framework and demonstrate its effectiveness a case study of sensor integrated shoes is presented in this work, where two models are compared — one survey based and using the Cyber-Empathic framework model. It is shown that the Cyber-Empathic framework results in improved fit. The case study also demonstrates the technique to test a designers’ cognitive hypothesis.

Extensions to the Taguchi Method of Product Design

1991 ◽  
Author(s):  
Kevin N. Otto ◽  
Erik K. Antonsson
Keyword(s):  
Taguchi Method ◽  
Product Design ◽  
Design Space ◽  
Optimal Solution ◽  
Taguchi’S Method ◽  
Design Problems ◽  
Tuning Parameters ◽  
Factorial Method ◽  
Definition Of ◽  
Range Of Values

Abstract The Taguchi method of product design is an experimental approximation to minimizing the expected value of target variance for certain classes of problems. Taguchi’s method is extended to designs which involve variables each of which has a range of values all of which must be satisfied (necessity), and designs which involve variables each of which has a range of values any of which might be used (possibility). Tuning parameters, as a part of the design process, are also introduced into Taguchi’s method. The method is also extended to solve design problems with constraints, invoking the methods of constrained optimization. Finally, the Taguchi method uses a factorial method to search the design space, with a confined definition of an optimal solution. This is compared with other methods of searching the design space and their definition of an optimal solution.

Development of Machine Learning Technology for Product Design Space

2016 ◽  
Vol 2016.12 (0) ◽  
pp. 1211
Author(s):  
Ichiro Kataoka ◽  
Zixian Zhang ◽  
Norihiko Nonaka
Keyword(s):  
Machine Learning ◽  
Product Design ◽  
Design Space ◽  
Learning Technology

A Robust Surrogate Modeling Approach for Material Selection in Sustainable Design of Products

2014 ◽  
Author(s):  
Douglas Eddy ◽  
Sundar Krishnamurty ◽  
Ian Grosse ◽  
Jack Wileden ◽  
Kemper Lewis
Keyword(s):  
Product Design ◽  
Environmental Impacts ◽  
Design Space ◽  
Material Selection ◽  
Surrogate Modeling ◽  
Sustainable Product Design ◽  
Early Design ◽  
Modeling Approach ◽  
Early Design Stages ◽  
Sustainable Product

A sustainable solution should holistically optimize all objectives related to the environment and a product’s cost and performance. As such, it should explicitly address material selection, which significantly affects environmental impacts and other objectives of a product design. While Life Cycle Assessment (LCA) provides credible methods to account for environmental impacts, current methods are not efficient enough for use at the early design stages to prune the entire design space without requiring execution of costly LCA analysis for each design scenario. Alternatively, surrogate modeling approaches can facilitate efficient concept selection during early design stages. However, material properties consist of discrete data sets, thus posing a significant challenge in the construction of surrogate models for numerical optimization. In this work, we address the unique challenges of material selection in sustainable product design in some important ways. Salient features of the robust surrogate modeling approach include achieving manageable dimensionality of LCA with a minimal loss of the important information by the consolidation of significant factors into categorized groups, as well as subsequent efficiency enhancement by a streamlined process that avoids the construction of full LCA. This novel approach combines efficiency of use with a mathematically rigorous representation of any pertinent objectives across an entire design space. To this end, we introduce an adapted two stage sampling approach in surrogate model construction based on a feasible approximation of a Latin Hypercube design at the first stage. The development and implementation of the method are illustrated with the aid of an automotive disc brake design, and the results are discussed in the context of robust optimal material selection in early sustainable product design.

scholarly journals Calculated estimation of electromagnetic compatibility of radio-electronic means of space systems and complexes

2021 ◽  
Vol 24 (2) ◽  
pp. 49-54
Author(s):  
Yevgeny E. Krivobokov
Keyword(s):  
Electromagnetic Compatibility ◽  
Mutual Influence ◽  
Integrated Approach ◽  
Design Stage ◽  
Launch Vehicles ◽  
Space Systems ◽  
Space Technology ◽  
Radio Electronic ◽  
Analytical Assessment ◽  
Technical Measures

This article presents the methods of complex computational and analytical assessment of ensuring electromagnetic compatibility of technical means (electrical, electronic and radio-electronic means of launch vehicles and spacecraft). These methods allow us to conduct a comprehensive computational and analytical assessment of the electromagnetic compatibility of the technical means of rocket and space technology, which in its essence allows us to assess the mutual influence of the technical means of rocket and space technology already at the design stage of rocket and space technology objects. The analysis of the results of the assessment of the electromagnetic compatibility of the technical means of rocket and space technology allows us to develop organizational and technical measures aimed at ensuring the electromagnetic compatibility of the technical means of rocket and space technology at all stages of the life cycle of objects of rocket and space technology. To assess the electromagnetic compatibility of the technical means of rocket and space technology, an integrated approach was chosen due to the large dimension of the initial data and the variety of possible variants of interference penetration.

scholarly journals Research on Creative Product Design of Jewelry Design

2021 ◽  
Vol 236 ◽  
pp. 05018
Author(s):  
Wen Ming Liu ◽  
Yu Pu
Keyword(s):  
Quality Of Life ◽  
Product Design ◽  
Intelligent Design ◽  
Design Space ◽  
Precious Metals ◽  
Living Standards ◽  
Traditional Sense ◽  
The Times ◽  
Jewelry Design

With the development of the times and the promotion of technology, people’s living standards and aesthetic requirements have also been continuously improved. Intelligent design enables jewelry to break through its position in the traditional sense It is no longer limited to the handmade production of precious metals. Intelligent design can also be applied to jewelry design. The unlimited choice of materials allows designers to have greater design space and imagination. With the development of fashion trends, jewelry as a kind of decoration, in another way shows the personal quality of life and life attitude. Therefore, the more diversified forms of jewelry design are eclectic, and the pursuit of higher levels and more comprehensive forms to create fashionable and personalized products.

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