Damping Effects Of The Passive Control Devices On...

†¢ Damping Effects of the Passive Control Devices on Structural Vibration Control: TMD, TLC and TLCD for Varying Total Masses Three passive vibration control devices that consist of Tuned Mass Damper, Tuned Liquid Damper and Tuned Liquid Column Damper are experimentally investigated in this study. A scaled three-story steel building structure coupled with each device is employed to evaluate the damping effect of each controller. This research experimentally presents that the mass and damping of passive devices are the key factors in structural vibration suppressing. Fast Fourier Transform, frequency modes and the total mass of devices are used to calculate the Power Spectral Density values. As a benchmark, a rigid mass has been attached in†¦show more content†¦The initial time estimated to complete this project is four years. 2. Usage of sugarcane bagasse ash as a replacement to Portland cement in concrete The target economic sectors of the proposed research are the sugar industry and the construction industry. The sugar industry will be directly affected, since the main goal of this research project is to develop a sugarcane bagasse ash-based product that can be used as an additive for concrete mixes. Due to the known properties and chemical composition of sugarcane bagasse, it is expected that this new product will be competitive with fly ash in terms of improving the properties of concrete mixes. The newly added economic value of bagasse ash may also make it economically advantageous to burning the entire stock of bagasse fiber for electricity production beyond the needs of the sugar mills. The local construction industry will be indirectly affected by the availability of an additive for concrete production with a lower cost and similar properties to fly ash. This new bagasse ash-based product is expected to reduce the construction costs of projects requiring large amounts of concre te (e.g., foundations, concrete bridges), thus, leading to a potential increase in the number of construction projects per year. The results of this research will have a significant impact on the economic development of US regions where the sugar industry is present, such as Florida, Texas, and HawaiiShow MoreRelatedAn Introduction To Tuned Vibration Absorbers?1044 Words   |  5 Pageshave highly structural damping properties, is faced with great difficulty due to the fact that the decreased weight results in low rigidity and reacts with vibration characteristics. Vibration must be effectively controlled, otherwise it could be uncomfortable for humans, increase fatigue, cause instability and could result in damage to the entire system (Sharma et al., 2011). Tuned Vibration Absorbers (TVAs) are important engineering tools for vibration suppression. They can be passive, semi-activeRead MoreIntroduction to Noise and Vibration Damping2431 Words   |  10 PagesNOISE AND VIBRATION DAM PING Vibrations are undesirable for structures, due to the need for structural stability, position control, durability, performance, and noise reduction. Vibrations are concern to large structures such as aircraft and small structures such as electronics. Reduction of Vibration can be attained by increasing damping capacity and increasing the stiffness. The loss modulus is the product of these two quantities and thus can be considered a figure of merit for the vibration reductionRead MoreEddy Current Braking System4987 Words   |  20 Pageselectromagnetic induction which create resistance, and in turn either heat or electricity. In this paper, linear Halfback magnetized mover is applied to eddy current braking system for high speed. For such a breaker, we give analytical formulas considering end effects for its magnetic field, eddy current distribution, forces according to the secondary relative permeability, and conductivity. The results given here are purely analytic applicable. INTRODUCTION The term â€Å"EDDY† Focault Bae J. S.(2004) found thatRead MoreStudy of Tractor Vibration and Ergonomic Design of Tractor Seat for Operators Comfort14489 Words   |  58 PagesA Report on STUDY OF TRACTOR VIBRATION AND ERGONOMIC DESIGN OF TRACTOR SEAT FOR OPERATORS COMFORT INDEX |Sr. No. |Content |Page No. | |1 |Objectives |1 | |2 |Introduction |2-4 Read MoreHydrogen Super Highway9917 Words   |  40 Pagesa snowplow and a rotating broom to clear the path. Q. How does Maglev collect its power? A. Just as a light rail vehicle uses a Z-shaped pantograph to collect electricity from overhead wires and transfer it to the car, Maglev will use an arm like device to collect power from a small power rail incorporated into guideway construction. Lower voltage power used for car doors, lights, heating, ventilating and air conditioning is created through the use of transformers. Q. What impact will the low-speed