Mechanical vibration is mostly harmful, and it may not only generate noise but also affect the working life of equipment. Lever, inerter, grounded stiffness have good performance in field control, dynamic absorber simultaneously containing lever, rarely studied. Based on dampertype absorber, a with presented. And optimal system parameters are analytically researched detail. Firstly, differentia...

In this paper, an optimization technique is presented for the design of piezoelectric buzzers. This design technique aims at finding the optimal configuration of the coupled cavity and diaphragm structure to maximize the sound pressure output. Instead of measuring the material constants of the piezoelectric ceramic and the metal diaphragm, an "added-mass method" is developed to estimate the equ...

Landing gear is a structure that is mounted under the fuselage and helps the aircraft in takeoffs and landings. The most important duty of landing gear is the control of vibration exerted on the system through the shock absorber which is a common component to all the landing gear. Considering the importance of this issue, the necessity of investigating shock absorber with features such as high ...

Abstract In order to study the influence of structural factors launch device on missile tilt projectile dynamics, a dynamic model platform was established based finite element method. The effects shock absorber stiffness, angle between and horizontal plane were studied platform’s ejection response characteristics. research results show that greater rigidity absorber, smaller plane, vibration am...