VSV调节机构的仿真提速和精度补偿措施

Translated title of the contribution: Simulation speed-up and accuracy compensation measures for adjusting mechanism of variable stator vane

Baozhen Zhang, Hanping Wang*, Feng Xu, Zhiqing Wu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The adjusting mechanism of variable stator vane plays an important role in improving the surge margin of the gas turbine engine. Based on the multibody dynamics theory and self-developed parametric modeling platform, a five-stage rigid-flexible coupling dynamic model with complex factors such as temperature effect, dimensional error, moving pair clearance, and nonlinear friction contact, is constructed. The expression of the shaft-bushing normal nonlinear contact force is analytically deduced, and it is verified that the influence of different normal contact force models on the simulation results is less than 2.198% . By simplifying the configuration of the dynamic model, and providing the solver with the partial derivative of the force element with respect to the state variable, the calculation efficiency is increased by 24.56% at the maximum on the premise of ensuring the calculation accuracy of the rigid-flexible coupling dynamics model. Based on the finite difference method, the blocking force and angle adjustment accuracy of the adjustable stator blade adjustment mechanism are solved for some parameters. And based on the local sensitivity, the compensation measures to improve the performance of the mechanism are proposed, and the rationality of the compensation measures is verified through dynamic simulation.

Translated title of the contributionSimulation speed-up and accuracy compensation measures for adjusting mechanism of variable stator vane
Original languageChinese (Traditional)
Article number226034
JournalHangkong Xuebao/Acta Aeronautica et Astronautica Sinica
Volume43
Issue number9
DOIs
Publication statusPublished - 25 Sept 2022

Fingerprint

Dive into the research topics of 'Simulation speed-up and accuracy compensation measures for adjusting mechanism of variable stator vane'. Together they form a unique fingerprint.

Cite this