| NSF Org: |
CMMI Division of Civil, Mechanical, and Manufacturing Innovation |
| Recipient: |
|
| Initial Amendment Date: | February 6, 2015 |
| Latest Amendment Date: | February 6, 2015 |
| Award Number: | 1529380 |
| Award Instrument: | Standard Grant |
| Program Manager: |
Yick Hsuan
CMMI Division of Civil, Mechanical, and Manufacturing Innovation ENG Directorate for Engineering |
| Start Date: | December 27, 2014 |
| End Date: | August 31, 2015 (Estimated) |
| Total Intended Award Amount: | $194,821.00 |
| Total Awarded Amount to Date: | $194,821.00 |
| Funds Obligated to Date: |
|
| History of Investigator: |
|
| Recipient Sponsored Research Office: |
300 TURNER ST NW BLACKSBURG VA US 24060-3359 (540)231-5281 |
| Sponsor Congressional District: |
|
| Primary Place of Performance: |
Blacksburg VA US 24061-0001 |
| Primary Place of
Performance Congressional District: |
|
| Unique Entity Identifier (UEI): |
|
| Parent UEI: |
|
| NSF Program(s): | Structural and Architectural E |
| Primary Program Source: |
|
| Program Reference Code(s): |
|
| Program Element Code(s): |
|
| Award Agency Code: | 4900 |
| Fund Agency Code: | 4900 |
| Assistance Listing Number(s): | 47.041 |
ABSTRACT
The objective of the research is to develop a structural control approach to effectively mitigate the wind-induced vibrations of large structures like high-rise buildings and at the same time efficiently harvest energy at the utility scale. Tall buildings and slender towers, being susceptible to dynamic wind load effects, can experience large vibrations. Currently, to reduce these vibrations in a building, a popular approach is to utilize a large mass at the top as a tuned mass damper which absorbs some energy in its own motion and dissipates the rest as wasted heat in a damper. In this project, a unique approach will be utilized to provide enhanced structural response suppression by converting the dissipated vibration energy into electricity by using a series of optimally configured electricity-generating tuned mass dampers. To optimize the performance of the dampers in energy harvesting and structural control, the project will conduct a comprehensive study of the dynamics and energy analysis of structures with tuned mass dampers, will design efficient electromagnetic energy transducers for harvesting and connecting to the building's or structure's power grid, and will develop a complete semi-active self-powered vibration control system. The project will formulate new modeling and simulation approaches to analyze the integrated dynamics of the electrical, tuned mass damper and structural systems exposed to wind loads. Deliverables include the development of an experimentally demonstrated innovative framework for dual-function vibration control and energy harvesting, including the hardware required for energy harvesting and grid connection as well as the control algorithms required to operate the tuned mass dampers.
The research is multi-disciplinary as it blends concepts of structural, mechanical, power system, and electrical engineering for designing an optimal system for controlling structures to enhance their safety and reliability and, for energy harvesting to enhance sustainability in structural designs. The project results will be integrated in the newly launched Civil Engineering, Energy Technologies, and Mechatronics programs at Stony Brook University through course development, involvement of undergraduate students in project research, advanced training of graduate students, and summer internship out-reach activities for high-school students.
PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH
Note:
When clicking on a Digital Object Identifier (DOI) number, you will be taken to an external
site maintained by the publisher. Some full text articles may not yet be available without a
charge during the embargo (administrative interval).
Some links on this page may take you to non-federal websites. Their policies may differ from
this site.
PROJECT OUTCOMES REPORT
Disclaimer
This Project Outcomes Report for the General Public is displayed verbatim as submitted by the Principal Investigator (PI) for this award. Any opinions, findings, and conclusions or recommendations expressed in this Report are those of the PI and do not necessarily reflect the views of the National Science Foundation; NSF has not approved or endorsed its content.
Tall buildings is very susceptible to dynamic loading from wind and the large vibration can cause structure damage and occupant discomfort. Instead of dissipating the biration energy into waste hear, in this this interdisciplinary research we developed a structural control approach to effectively mitigate the wind-induced vibrations of high-rise buildings and at the same time efficiently harvest energy at the utility scale.Specially we will make dual use of the existing tuned mass dampers (TMD) in the tall buildings for vibration supression to realize the energy harvesting.
It showed large scale energy on the order fo 10KW-100KW can be harvested from the TMD in wind events. The project demonstrated the feasibility of dual-functional TMDs, to harvest vibration energy and mitigate the buidling vibration. By making use of the mechanical and electrical resonances, we can achieve ehanced vibration mitigation while maintain the possiblity for space retrofit and low cost. This project yielded over 25 peer-reviewed papers, and provided excllent educational training to broad spectrum of students, includigng two PhD students, several MS, undergraduates, and high school students. New course of energy harvesting has been developed. The energy harvesters and the self-powered control developed in this project can also be extended to other types of energy harvesting or vibration control.
Last Modified: 12/01/2015
Modified by: Lei Zuo
Please report errors in award information by writing to: awardsearch@nsf.gov.
