Resilience (engineering)

In engineering, resilience refers to the ability of technical systems not to fail completely in the event of malfunctions or partial failures , but rather to maintain essential system services.

Concepts

In general systems theory , resilience describes the ability of a complex system to return to its original state despite massive external or internal disturbances. Technical systems are called resilient if they maintain the requested system performance even when internal and external failures and malfunctions occur.

From this a group around Arnim von Gleich has derived the guiding concept “Resilient Systems”. It orients the design and the design of technical systems to avoid major system breakdowns. Structures of (socio-) technical systems must be strengthened in order to cope with this task. This requires a new understanding of engineering in the sense of "resilience engineering"; At the same time, interdisciplinary openness and links with other relevant sciences such as economics and social sciences are required.

Methods

Possible methods of creating resilience are

Examples

Uninterruptible power supply ensures energy if the primary power supply fails.
Aircraft engines - Although one engine is sufficient for flight capability, two are required .
In shipbuilding , ships are divided into sections separated by bulkheads to prevent capsizing in the event of a leak.
The Internet has its roots in the DARPA network, which should offer alternative paths if communication channels are disrupted.

Resilience is further understood in some of the literature. There it is a matter of realizing a new system state that even has an improved system behavior compared to the initial state. Understood in this way, resilience includes an inherent ability to learn and develop in systems.

literature

Klaus Thoma: Resilien-Tech: "Resilience-by-Design": Strategy for future technological topics , Herbert Utz Verlag, 2014
Nariman Valizadeh, Conrad R. Zorn, Asaad Y. Shamseldin. Evaluating the technical resilience of stormwater systems to flooding. Stormwater Conference (2016)
Susara E. van der Merwe, Reinette Biggs, Rika Preiser. A framework for conceptualizing and assessing the resilience of essential services produced by socio-technical systems . Ecology and Society 23 : 2: 12 (2018)

Web links

Individual evidence

^ B. Scharte, K. Thoma: Resilience - engineering perspective . Fraunhofer EMI. Retrieved September 2, 2016.
↑ Brand, FS (2005): Ecological Resilience and its Relevance within a Theory of Sustainable Development. UFZ report 03/2005
↑ ^a ^b Gleich, A. von; Gößling-Reisemann, S .; Stührmann, S .; Woizescke, P. (2010): Resilience as a guiding concept - vulnerability as an analytical category. In: Fichter, K .; Equal, A. von; Pfriem, R .; Siebenhüner, B. (Hg.) (2010): Theoretical bases for successful climate adaptation strategies. nordwest2050 -berichte 1, Bremen / Oldenburg, pp. 13–49
↑ Accordingly, z. The following working definition is also sometimes used: “Resilience is the ability to ward off actual or potentially adverse events, to prepare oneself, to take them into account, to cope with them, to recover from them and to adapt to them more and more successfully. Adverse events are human, technical as well as naturally caused catastrophes or processes of change that have catastrophic consequences. "(According to K. Thomas / Resilien-Tech " Resilience-by-Design ": Strategy for future technological topics , p. 17)
↑ Scharte, B .; Thoma, K. (2016): Resilience - Engineering Perspective . In: Wink, R., Multidisciplinary Perspectives in Resilience Research. Wiesbaden: Springer Fachmedien, pp. 123–150
↑ Securing Germany's future as a production location - Implementation recommendations for the future Industry 4.0 project . October 2, 2012. Archived from the original on February 18, 2016. Info: The archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved on August 31, 2016. (Page 15: The Smart Factory controls interference) @1@ 2

[1] B. Scharte, K. Thoma: Resilience - engineering perspective . Fraunhofer EMI. Retrieved September 2, 2016.

[2] Brand, FS (2005): Ecological Resilience and its Relevance within a Theory of Sustainable Development. UFZ report 03/2005

[AvG-3] Gleich, A. von; Gößling-Reisemann, S .; Stührmann, S .; Woizescke, P. (2010): Resilience as a guiding concept - vulnerability as an analytical category. In: Fichter, K .; Equal, A. von; Pfriem, R .; Siebenhüner, B. (Hg.) (2010): Theoretical bases for successful climate adaptation strategies. nordwest2050 -berichte 1, Bremen / Oldenburg, pp. 13–49

[4] Accordingly, z. The following working definition is also sometimes used: “Resilience is the ability to ward off actual or potentially adverse events, to prepare oneself, to take them into account, to cope with them, to recover from them and to adapt to them more and more successfully. Adverse events are human, technical as well as naturally caused catastrophes or processes of change that have catastrophic consequences. "(According to K. Thomas / Resilien-Tech " Resilience-by-Design ": Strategy for future technological topics , p. 17)

[5] Scharte, B .; Thoma, K. (2016): Resilience - Engineering Perspective . In: Wink, R., Multidisciplinary Perspectives in Resilience Research. Wiesbaden: Springer Fachmedien, pp. 123–150

[6] Securing Germany's future as a production location - Implementation recommendations for the future Industry 4.0 project . October 2, 2012. Archived from the original on February 18, 2016. Info: The archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved on August 31, 2016. (Page 15: The Smart Factory controls interference) @1@ 2