静载作用下的飞机结构振动试验研究

Vibration Experiments for Aircraft Structure Under Static Loads

飞机结构在多种载荷联合环境下的振动试验技术研究成为当前考核飞机结构部件耐振强度的一个重要方面。笔者分别从试验的总体思路、试验系统的设计技术、以及静载的施加、静力及力矩平衡的形式、静载载荷的控制等方面探讨了振动环境与静载的联合加载试验技术。应用橡皮绳和气囊实现了静载的模拟,并利用虚拟测试技术完成某型号结构件的静载和振动环境联合作用下的结构动响应测试试验。

The vibration environment test technique for aircraft structure under multiform loads is a key technique for examining anti-vibration strength of aircraft structures. This technique of associating vibration with static loads is discussed which includes the general idea of test, the design technique of test system, the loading of the static pressure, the balance types of static forces and moments, and the controlling of the pressure loads. Rubber-gasbag and rubber-ropes were used to simulate static loads to complete the vibration environment test for aircraft structure. The virtual test technique was used in the vibration response measure for vibration environment test of aircraft structure under vibration loading and static loads.