关于在现场条件下平衡飞机螺旋桨的问题
On Balancing Aircraft Propellers in Field Conditions V.D. Feldman, Chief Specialist, Vibromera BSTU “Voenmech” named after D.F. Ustinov, Faculty “E” (Weapons and Armament Systems), Department E7 “Mechanics of Deformable Solid Body” Edited by N.A. Shelkovenko Contents Foreword Balancing and Vibration Survey of the Yak-52 Introduction Natural Frequencies of Engine and Propeller Balancing Results Vibration at Other Operating Modes In-Flight Vibration and Absorber Adjustment Conclusions Balancing the MTV-9 Propeller and Vibration Survey of the Su-29 Introduction Natural Frequencies of Engine and Propeller Baseline Cabin Vibration Before Balancing Balancing Results Conclusions Appendix: Balancing Protocol Frequently Asked Questions Summary: This engineering report documents Read more
排气扇平衡指南:暖通空调系统分步程序
Home › Knowledge Base › Fan Balancing Technical Guide Exhaust Fan Balancing: A Practical Field Guide A working technician’s reference for on-site dynamic balancing of HVAC exhaust fans — from sensor placement to final verification. Based on 15+ years of field experience across rooftops, basements, and everything in between. By Nikolai Shelkovenko Mar 17, 2018 Updated Jun 2025 12 min read In this guide What Actually Goes Wrong When a Fan Is Out of Balance Where Imbalance Comes From Fan Types and Their Balancing Quirks When to Balance (and When Not To) The Balancing Procedure — Step by Step Field Read more









