تقرير
Calculations and experiments concerning lifting force and power in TEMPUS
العنوان: | Calculations and experiments concerning lifting force and power in TEMPUS |
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المؤلفون: | Zong, J. H, Szekely, J, Lohofer, G |
المصدر: | Acta Astronautica. 29(5) |
بيانات النشر: | United States: NASA Center for Aerospace Information (CASI), 1993. |
سنة النشر: | 1993 |
مصطلحات موضوعية: | Materials Processing |
الوصف: | A critical comparison is reported between the theoretically predicted and experimentally measured values for the electromagnetic lifting force and the heating rates which may be achieved, under simulated microgravity conditions, using the TEMPUS electromagnetic levitation device. The experiments involved the suspending of a metallic sample from one arm of a recording balance, such that it was carefully positioned between the heating and the positioning coils of the levitation device. The net force exerted by the sample was measured as a function of position, the coil currents, and the nature of the sample. Some calculations are also reported regarding the power absorption by the sample. The theoretical predictions, based on the numerical solution of Maxwell's equations using the volume integral technique, were found to be in excellent agreement with the measurements. For the idealized case of a spherical sample, analytical solutions describing the lifting force were also found to agree very well with the computed results. |
نوع الوثيقة: | Report |
اللغة: | English |
تدمد: | 0094-5765 |
DOI: | 10.1016/0094-5765(93)90021-N |
URL الوصول: | https://ntrs.nasa.gov/citations/19930058935 |
رقم الأكسشن: | edsnas.19930058935 |
قاعدة البيانات: | NASA Technical Reports |
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