Localization Technique of Space Debris Impacting Spacecraft Based on PVDF Sensor

Paper number

IAC-11,A6,3,13,x10796

Author

Mr. Xuezhong Wen, China Aerodynamics Research and Development Center, China

Coauthor

Ms. Jie Huang, China Aerodynamics Research and Development Center, China

Coauthor

Mr. Jinyang Luo, China Aerodynamics Research and Development Center, China

Coauthor

Mr. Qing Luo, China Aerodynamics Research and Development Center, China

Coauthor

Mr. Yao Long, China Aerodynamics Research and Development Center, China

Coauthor

Mr. Leisheng Ren, China Aerodynamics Research and Development Center, China

Year

2011

Abstract

The threat of the debris impacting spacecraft is increasingly serious. PVDF is adopted as the sensor in order to detect the position of space debris impacting spacecraft, which has the merit of non-intrusive installation for spacecraft protection structure and wide response frequency band. Localization technique of space debris impacting typical spacecraft protection structure based on PVDF sensors is studied in theory and test. The structure types including aluminum plate, curved aluminum plate, armor plate added with tendon, and Whipple shield are studied to verify the applicability of this localization technique.

The localization method based on hyperbola theory is investigated. Analysis shows that impact position on typical spacecraft protection structures can be calculated by using hyperbola theory, which is also applicable for Whipple shield on condition that the sensor is installed on the rear wall by eliminating the time of stress wave transmitting in link medium and rear wall. The hyperbola localization theory is validated by the test of air rifle and hypervelocity ballistic range. Test results show that the error of impact position between calculation and measurement is less than 1.0cm for planar or curved monolayer structure with dimensions of 50cm×20cm, and the error is less than 1.5cm for the multilayer structure of Whipple shield with dimensions of 25cm×25cm, with sensors installed on the rear wall. The localization technique based on PVDF sensor in this study is proved to be applicable to detect the position of typical spacecraft protection structures impacted by space debris.

Key words:  PVDF；Hypervelocity impact；Localization

Abstract document

IAC-11,A6,3,13,x10796.brief.pdf

Manuscript document

IAC-11,A6,3,13,x10796.pdf (🔒 authorized access only).

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