Tenders are invited for Digital Twin Supported Design and Manufacturing of Thrusters for Constellations (Artes at 4b.188) - Expro+ Re-Issue The objective of this activity is to develop and test a digital-twin based design and manufacturing methodology for thrusters for LEO satellites, allowing higher accuracy thrust predictions significantly improving the development and verification approach and fuel margin philosophyTargeted Improvements:- Reduction of electric thruster manufacturing, assembly, integration, test duration andcomplexity by 25%. - Reduction of satellite propellant level margins by 5% - Increase sustainability of propulsion systems by reducing the propellant and power required for ground testing.Activity Description: Thruster performance is very sensitive to small design variations and manufacturing tolerances and often full batch firing testing is required to confirm the thruster performance. This is not acceptable for large electric thruster orders for constellation, which typically require to test one out of ten thrustersto achieve effort and delivery time requirements. Accurate thruster performance prediction is also important to reduce propellant margins at satellite level, needed to compensate for possible underperformances of the untested engines.This activity will develop and test a digital-twin based design and manufacturing methodology to accurately predict the individual thruster performance (e.g. thrust, thrust vector and Isp) with respect to those of the product family of a widely used thruster technology. The sensitivity of thruster performance on the geometric variation and material property variation of the unit will be studied. A digital twin able to predict the thruster performance will be developed. A modular thruster breadboard with adjustable geometry as well as a thruster test bed will be developed, manufactured and characterised. The thruster breadboard will be tested and used to train the digital twin model. The achieved accuracy of the thruster performance prediction when compared to test results will be statistically evaluated and compared to the target of achieving a partial acceptable test philosophy of 1 out of 10 thrusters.Procurement Policy: C(2) = A relevant participation (in terms of quality and quantity) of non-primes (incl. SMEs) is required. For additional information please go to:http://www.esa.int/About_Us/Business_with_ESA/Small_and_Medium_Sized_Enterprises/Opportunities_for_SMEs/Procurement_policy_on_fair_access_for_SMEs_-_the_C1-C4_ClausesRead more Tender Link : https://esastar-publication-ext.sso.esa.int/ESATenderActions/filter/open
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