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Analysis of a root lock mechanism within a two-slider mechanism with backlash

  • Harbin Engineering University
  • School of Mechatronics Engineering, Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

A kind of root lock mechanism with a space deployable mast in a space probe was analyzed and simplified into a kind of mechanism with two sliders and a spring. First, using the vibration analysis method, movement of the mechanism was studied to obtain an expression of the ideal movement of the #2 slider. Then, mathematical models of backlash in movement pairs were analyzed. Kinetic equations of components of the mechanism were set up according to analysis of forces on them. At last, mathematical simulation was applied to check the correctness of theory analysis and effects of pair backlash on movement precision. It was concluded that matching precisions at different positions have different influence on movement precision of the mechanism. Improving matching precision of pairs and hinge on the #2 slider can heighten movement precision of the mechanism, but the same is not true for the #1 slider. The analysis can analyze the influence of movement pairs on movement of a mechanism and make reasonable matching precisions in order to decrease the cost of manufacturing.

Original languageEnglish
Pages (from-to)355-360
Number of pages6
JournalHarbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University
Volume32
Issue number3
DOIs
StatePublished - Mar 2011
Externally publishedYes

Keywords

  • Backlash
  • Mast
  • Mechanism with two sliders
  • Vibration

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