非对称动力机动飞行的载荷研究

 通过对一架装有４台涡轮螺旋桨发动机飞机的算例分析,研究了多发动机飞机非对称动力机动飞行的载荷确定方法,指出了影响其飞行载荷的主要因素,给出了非对称动力模拟机动飞行的试飞方法。此外,发现国军标《军用飞机强度和刚度规范》有关条文规定中存在的错误,且提出了相应的修改意见。

A STUDY ON FLIGHT LOADS FOR UNSYMMETRICAL POWER MANEUVER

Unsymmetrical power maneuver condition is one of the important strength design conditions in Military Airplane Strength and Rigidity Specification. A study on determining the flight loads of multiengine airplane in unsymmetrical power maneuver has been carried out.A calculation example for an airplane with four turbopropeller engines is presented.The main fac- tors affecting the flight loads in unsymmetrical thrust condition are pointed out.Procedures to perform unsymmetrical power simulation maneuver are described.In addition. some faults in the item dealing with unsymmetrical power maneuver in Airnlane Strength and Rigidity Specifica-tion are discussed and amendment is also given in this paper.The present paper is important for the flight loads calculation and strength demonstration flight test of new multiengine airplane