The Vibration Problem in Aircraft-Propeller Designing 370167
THIS paper represents an effort on the part of the propeller designer to look at some phases of the vibration problem as it affects him. A very brief description of some of the work being done in vibration is given. The subject is treated from the aspect of experimentation and the physical phenomena without any effort to introduce the mathematical phase of the subject.
Examples are given of the measurements of the vibratory stress in propeller blades by a new method introduced during the last year.