Abstract
In the static testing of large solid rocket motors, particularly those equipped with a form of steering system, a multiple degree-of-freedom test fixture is normally employed. This paper discusses multi-component test fixtures within a basic conceptual framework. A qualitative description of the specific form of mechanical system used is given. The choice of force cell measurement devices and associated isolators used with multi-component test fixtures is described. Conventional static and dynamic systems calibrations to support accuracy considerations are determined. A discussion of the dynamic considerations in multi-component test data analysis and reduction processes including digital data compensation techniques for improving the quality of force information, derived from the multi-component test fixture environment, are suggested.
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