scholarly journals RESPONSE CONTROL OF MULTI-DEGREE SYSTEM BY INERTIAL MASS : Study on response control by inertial mass No.2

2006 ◽  
Vol 71 (601) ◽  
pp. 83-90 ◽  
Author(s):  
Takeshi FURUHASHI ◽  
Shinji ISHIMARU
Keyword(s):  
Inertial Mass ◽  
Response Control

Seismic response control using electromagnetic inertial mass dampers

2013 ◽  
Vol 43 (4) ◽  
pp. 507-527 ◽  
Author(s):  
Yutaka Nakamura ◽  
Akira Fukukita ◽  
Kazuo Tamura ◽  
Issei Yamazaki ◽  
Taichi Matsuoka ◽  
...  
Keyword(s):  
Seismic Response ◽  
Inertial Mass ◽  
Response Control ◽  
Seismic Response Control

Systematization of Shock Response Control Based on Momentum Exchange and Energy Exchange and Its Application to Lunar/Planetary Spacecraft

Impact ◽  
2019 ◽  
Vol 2019 (10) ◽  
pp. 73-75
Author(s):  
Susumu Hara
Keyword(s):  
Energy Exchange ◽  
Control Mechanism ◽  
Cost Effective ◽  
Aerospace Engineering ◽  
Single Test ◽  
Momentum Exchange ◽  
Mars Rover ◽  
Response Control ◽  
Shock Control ◽  
Shock Response

Professor Susumu Hara is based at the Department of Aerospace Engineering, Nagoya University in Japan explains that when the Mars rover Opportunity was set to land on that planet in the first weeks of 2004, onlookers held their breath as it dropped from orbit and hurtled toward the red surface. 'Any failure in the calculations or landing systems would mean a harder than expected impact,' he highlights. 'The impacts sustained by a rover such as Opportunity can derail a mission before it even starts, damaging cargo or vital systems required to complete the mission.' Impacts occur during landing but also as the craft enters the atmosphere, when it makes sudden moves, while it is on surface or when debris strikes it. 'Therefore, a system and materials to protect a craft are vital,' outlines Hara. 'Surprisingly, the solutions to this problem are not sophisticated. In fact, most craft still employ devices resembling automobile bumpers, which absorb the energy from an impact by crumpling under the force of said impact.' Unfortunately, these cannot be reused, even during testing phases a new prototype is required after every single test run. Recent missions also employed techniques like airbags or sky cranes. While successful they too have drawbacks. 'Airbags create huge rebounds which can jostle the craft and the contents inside while sky cranes are extremely costly to develop,' Hara says. For this reason, he is dedicated to designing a new highly reliable and cost-effective shock control mechanism.

Dynamics Response Control of a Mindlin-Type Beam

2017 ◽  
Vol 17 (03) ◽  
pp. 1750039 ◽  
Author(s):  
Kenan Yildirim ◽  
Seda G. Korpeoglu ◽  
Ismail Kucuk
Keyword(s):  
Optimal Control ◽  
Partial Differential Equations ◽  
Maximum Principle ◽  
Control Problem ◽  
Control Function ◽  
Initial Boundary ◽  
Response Control ◽  
Adjoint Variables ◽  
Dynamics Response ◽  
Optimal Control Function

Optimal boundary control for damping the vibrations in a Mindlin-type beam is considered. Wellposedness and controllability of the system are investigated. A maximum principle is introduced and optimal control function is obtained by means of maximum principle. Also, by using maximum principle, control problem is reduced to solving a system of partial differential equations including state, adjoint variables, which are subject to initial, boundary and terminal conditions. The solution of the system is obtained by using MATLAB. Numerical results are presented in table and graphical forms.

Impact of PET-CT on Primary Staging and Response Control on Multimodal Treatment of Esophageal Cancer

2011 ◽  
Vol 35 (3) ◽  
pp. 608-616 ◽  
Author(s):  
Kirsten Thurau ◽  
Daniel Palmes ◽  
Christiane Franzius ◽  
Evgeny Minin ◽  
Norbert Senninger ◽  
...  
Keyword(s):  
Esophageal Cancer ◽  
Multimodal Treatment ◽  
Response Control ◽  
Primary Staging ◽  
Pet Ct
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