In order to study the effects of acceleration on mechanical property of solid propellant,the propellant fixture for vibration test is designed.The natural frequency of the fixture is calculated by algebraic equation and finite element mode analysis,and the calculated value is verified by vibration frequency sweeping test.The result shows that the computed value is similar to the tested one,and the designed fixture meets the requirements of vibration test.%为研究加速度载荷对固体推进剂力学性能的影响,设计了固体推进剂振动夹具,应用代数方程法和有限元模态分析计算夹具的固有频率,通过振动扫频试验验证计算结果.结果表明,计算值与扫频试验结果基本一致,设计的夹具满足振动试验要求.
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