液体火箭发动机试验推力自动校准加载系统的研制

液体火箭发动机推力是火箭发动机关键的性能参数，在发动机研制试验过程中推力测量是十分重要的。推力校准是推力测量中一项重要的环节,而校准加载系统又是力值传递的基础。介绍了推力校准加载系统的组成、工作原理，提出了推力校准自动加载系统研制的关键技术要点，并分析了攻克要点的技术途径。经试验验证，该加载系统可对0t～100t推力进行自动校准，校准加载稳定度为0.001%，提高了推力校准的效率和准确度。

Development of Loading System on Thrust Auto-calibration of Liquid Rocket Engine Test

Thrust is the key parameter in liquid rocket engine, so thrust measurement is very impor-tant during the research test. Thrust calibration is an important link of thrust measurement,loading system is the basis of force value transferring. The composing and the work principle are described, the key tech-nologies of system development are proposed and the technical way of conquer points is analyzed. The sys-tem’s loading capability is 0t~100t, the stability attains 0. 001% by experiments, and the efficiency and accuracy of thrust calibration are improved.