Dynamics of Liquid Rocket Engines

The book discusses questions of the theory and calculations of certain dynamic processes which take place with variable parameters in liquid rocket engines and their major components. Primary attention is devoted to the description of the dynamic processes and the study of methods for the engineering calculation of these processes. The differential equations of motion of the working medium and of the moving parts of the individual components are used to describe the dynamic processes of liquid rocket engines(LRE). Theoretical LRE arrangements and their static characteristics are examined. Assuming the LRE to be potentially a dynamic system, the authors derive the equations of the dynamics of the powerplant primary components. The dynamics of the LRE automation elements are analyzed and the questions of automatic regulation, trimming, and retrimming of engines using the results of firing tests are studied. The oscillatory processes in the tubing lines are examined in detail; the influence of oscillations in the pneumatic and hydraulic lines on the stability of the LRE working process is determined. An analysis is given of the LRE startup processes and the effect of the thrust tailoff impulse (TTI) on the scatter of ballistic rockets. Original material used in the analysis of several engine elements and their control systems is presented. (Author) Edited trans. of mono. Dinamika Zhidkostnykh Raketnykh Dvigatelei, n.p., 1969 p1-384.