Online ISSN: 2515-8260

Keywords : damping


Improving Vibrant Property of Carbon Fiber Reinforced Polymer Compound using ANSYS Technique

Anas Islam; Rajat Yadav; Vikas Kumar Sharma

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 4, Pages 683-690

Present paper improves the dynamic properties of materials like mode shape natural frequency, fiber reinforced polymer compounds by which the material moist is studied with macro mechanical study by same micro mechanical study. For support of an engine, motor, pump or any other mechanical device must be used Structural elements. Here high damping and stiffness is not so easy for mechanical components over vibrated moist that depend on visco elastic nature of material for obtaining all categories of material combinations like damping rubber polymers. Present paper takes 2 compound plates that have a dimension of 140 X 170 mm. one which has a rubber sheet which has inserted in between two carbon fiber sheet layers and others who have only layers of carbon fiber. Modal analysis of two compound plates has performed in ANSYS 19 software to obtain mode shapes and respective natural frequencies of the structure.

FEATURES OF THE THEORY OF A TWO-MASS SYSTEM WITH A RIGIDLY CONNECTED END OF THE BRIDGE, IN CONSIDERATION OF SEISMIC INFLUENCE ON HIGH-SPEED RAILWAYS

T.R. Rashidov; Rashidov Tursunbay; Shermuхamedov Ulugbek

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 2, Pages 1160-1166

Annotation. This article discusses a two-mass system with a rigid fixation of the end part (foundation) of the bridge on high-speed railways. The results of selecting the optimal parameters of dynamic vibration dampers (DVDs) for setting stiffness and damping in the case of a two-mass system with a rigidly fixed end part of the bridge are presented. It is shown that such a solution is recommended for the case when the bridge is located in a steep gorge, the intermediate supports are high and flexible, and the end supports are quite rigid, since they give the designer a wide opportunity to choose the dimensions and rigidity of the designed seismic protection elements.