List of Dissertation Abstract （Environment and System Sciences System Design Course）
NameSupervisor

TomokiToshihiko

HIRAKAWASHIRAISHI

SatoruShin

AKAO

Morishita

Title

A Study on Generation Mechanismof Vibration and Noise in Wet
ClutchAbstract

In this paper, vibration and noise in wet clutches in automatic transmissions were experimentally investigated.
The experimental setup was composed of clutch plates, dram, and shaft. I measured the vibration of one ofthe plate and the noise around the frictional surface. As a result, I suggest the generation mechanism ofvibration and noise.

Development and Experimental

Magneto-rheological (MR) Grease is known as smart materials which can change rheological property by

Investigation of an Energy-magnetic field. MR damper uses MR Grease as working oil and it can change damping property. In this study,

Regenerative MR Damper

an Energy-Regenerative MR damper was fabricated and investigated experimentally.

This paper discusses onboard guidance trajectory generation for Reusable Launch Vehicle (RLV) at Terminal

TaikiSeiya

IKENOUEUENO

Study on Optimal Guidance Lawwith Constraint on Controller Inputfor Space Transportation SystemArea Energy Management (TAEM). RLV is expected to play an important role as a future space transportation
system. The paper proposes optimal guidance law with a constraint on a lift for a stall avoidance at a mission
requiring a sharp turn. Optimal guidance law is calculated by homotopy method whose calculation costs arelow. Consequently, the optimal guidance law suggests that a lower altitude trajectory enables a winged-rocket
to track the guidance trajectory more easily because the rocket gets a larger available lift.

TakahiroKazumi

ISHIKURA

MATSUITakuya

Takahiro

EndoYamada

Finite Element Analysis ofIn this paper,we discuss finite element analysis of soft tissue with membranes for surgical simulators.WeParticular Model with Membranes

propose a method to keep from membranes turning inward of soft tissue.We discuss validity of finite element

for Surgical Simulatorsmodel used retrospective study in view of mechanical behaviors.

Multi-Scale Simulation for
Anisotropic
Ductile Failures

In this paper, the microscopic process of ductile failure is studied by using the multi-scale simulation.
Especially, the void growing in their microstructures are simulated without any special models for ductile
failures. By virtue of the multi-scale modeling method, the micro-structures give typical macroscopic ductile
failures, such as softening behavior and its dependency on the macroscopic stress triaxiality and Lode angles.

It is necessary to detect reinforcing rods in concrete to ensure the earthquake resistance. As a method thatthey detect reinforcingrods are nondestructive inspections,is nondestructive inspections by using
Chie

Takahiro

SAKAKURA

YAMADA

Research of reinforcing rods inelectromagnetic wave.Currently,a study of reinforcing rods in concrete position estimation by inverse analysis

concrete position estimation byof using simulation results is done.In this study,I estimate a reinforcing rod in concrete position accurately by

response surface method

using Finite Difference Time Domain method and Response Surface Method.I evaluated the coordinate thatthe fitness by using Response Surface Method is minimum value,thereby confirmed that I estimate reinforcing
rods in concrete

It is confirmed thatKyohei

Seiya

SHINOMOTO

UENO

Online Trajectory Optimization
using Receding Horizon GuidanceControl for Unmanned Vehicle

receding horizon guidance control(RHGC) and waypoint generation algorithm

proposed in this study are useful for the development of the autonomous UAV. The RHGC is developed for
guidance control with the real-time trajectory optimization. The waypoint generation algorithm is developedfor collision avoidance. The experiment of rover is conducted to evaluate the usability of the real-time
trajectory optimization, and the simulations are held to evaluate the usability of the RHGC and the waypoint
generation algorithm in this study.

SLIM Project plans to achieve high precise and high accurate landing and exploring with less as possible theStudy on Guidance and Control

cost. This study focus on powered descent phase witch starts from an orbit around the moon and arrives overKentaro

Seiya

Law during Powered Descending

the target point. Descent trajectory and control input value are decided by the EOM assumed before launching.

SUDA

UENO

Phase for a Lunar Lander withHowever, real EOM is different from assumed EOM and the difference influence guidance and control. ThisModelling Error

paper shows result of simulation that is applied estimation result to guidance law and effect of navigation
error that is caused by characteristics of sensor.

An investigation of electric
generation efficiency of semiKensaku

Motohikosubmersible type floating offshore

TAKAHASHI

MURAI

wind farm based on spatial
distribution of dynamic responses
in waves

Currently, the number of research on floating offshore wind turbine is increasing. The high demand forrenewable energy gives wind energy an opportunity to become most heavily used energy resources in thenear future. In this study, using an existing program, I calculate whole of motions of each turbine in a windfarm and analyze the relative velocity between pitch motion velocity and wind speed. In addition, I draw thespatial distribution of wind farm capacity factor and electric-generating capacity due to the velocity. Fromthat in waters close to japan, moreover, I also investigated the installation system of Semi-Submersible typewind farm that effects for capacity factor.

Focusing on the sliding friction of elastomer, an experimental apparatus has been developed, which measures
KazuhoKen

Changes in dynamic characteristics

the dynamic characteristics of the contact in the sliding friction. The effect of the sliding on the contact

TAKESHIMA

NAKANOof elastic contact due to sliding

stiffness and contact damping was measured, and was considered from the viewpoint of the change in thecontact area due to the sliding.

Simulation of customer behavior in a store was conducted. Customers move and purchase items dependingon the store layout, so the store layout have large effect on amount of sales. But it is difficult for retailers toRyusuke

Shin

Prediction of Customer Behavior indesign the best layout, because there are large amount of items which influence customers. Customer behavior

TANIGUCHIMORISHITAa Store as a Complex System

can be considered as one of Complex Systems. Cellular Automata (CA) is an useful modeling method forComplex Systems. By using CA, the relationships between customer and items in a store was modeled. As aresult, the customer behavior depending on the store layout was predicted.

There are some plans of debris capture systems under study because Active Debris Removal is one of theStudy on Relative Relation
YoshitoSeiyaAnalysis and Control of Debris

TSUJIMOTO

UENO

Capture with Super Multi-link
Space Manipulator

most important issues in future space development. We treat a debris capture system with super multi-link
manipulator, which has unique, flexible arms. This paper focuses on the state transition of the debris capture
on basis of Extended Resolved Motion Rate Control. The state transition realizes to avoid the undesirable
state to capture debris and to improve the criterion “Controllable Time” with a singular passage method. Thispaper shows the simulation results under limited conditions and the suggestion of the structure and control
design.

TomohiroToshihiko

FUKUNOSHIRAISHIA Study on Effects of Local

Cells have mechanosensors that convert mechanical forces into biochemical signals. According to recent

Dynamic Mechanical Stimulation

reports, one of mechanosensors is focal adhesions. Here I apply dynamic stimulation to a single cell throughon Cell Migration

focal adhesions and investigate the effects of the mechanical stimulation on cell migration.

A Study on a Mechanosensing
AtsushiToshihiko

System of a Cultured Osteobalast

HORIGUCHISHIRAISHI

Considering Deformation
DistributionThis study shows a novel method to investigate a cell mechanosensing system and the quantitative
relationship between the deformation distribution of cytoskeletal structure and the change of intracellular
calcium ion concentration as biochemical response in a living cell stimulated by a micropipette.

In this study, we propose a numerical simulation based on Distinct Element Method (DEM) considering theeffect of particle shape in powder packing. We employ spherical elements with the interaction between
Takanori

Kazumi

Powder Packing Simulation

MATSUOKA

MATSUIConsidering Particle Shapeparticles to simulate behavior of powder material. The interaction consists of rolling friction and cohesion toreproduce the property of maintaining packing structure. Therefore, we estimate appropriate cohesive force.
In comparison to the packing structure of characteristic shape, we microscopically consider the packing
structure of our proposal powder model. To validate a numerical simulation packing in a mold with complex
shape, we perform analysis of toothed-wheel model evaluate packing ratio.

In order to simulate the self-contacting which occurs in axial compression test for the wave-shaped shells byIsogeometric analysis, the self-contact algorithm based on the Knot-to-Surface contact is implemented in thisHiorakiKazumi

Implementation of self-contact

research. Defining a contact functional with penalty method, discretized equilibrium equation and itsMIURA

MATUI

model in Isogeometric analysis

linearized one are derived in the context of Isogeometric analysis. Furthermore pairing algorithm which aredifferent from the usual two-bodies contacting are developed to setup the simulation models. Representative
numerical simulations show their validity in small strain and large deformation problems.

Magnetorheological (MR) fluid is known as a kind of functional fluid which changes rheological property
A study on Vibration Control of aHirataka

Toshihiko

Structures by a Shear Type Semi-MISAKISHIRAISHI

active Damper using
Magnetorheological Grease

when external magnetic field is applied. However, there is a problem with the sedimentation of the dispersed
particles. To prevent the sedimentation, MR grease was developed. In this study, I verified the performanceof the developed shear type semi-active damper using MR grease. The performance test demonstrated thatthe proposed damper has wide dynamic range of damping force and that it keep the performance after keeping
it in static state for nine days. The vibration control test demonstrated that the vibration response was reduced
by a simplified skyhook algorithm.

Recently, renewable energy is getting a lot of attention in Japan. Underwater platform that is a system toJunMotohiko

YAMANOI

MURAI

A study on dynamic response
characteristic of underwater
platfom in waves

connect multi-FOWT under water was proposed for the purpose of enhancing productivity of Floating
Offshore Wind Turbines. The underwater platform can decrease responses in waves and keep relative distanceof each turbines. The underwater platform is long and large structure, so we cannot ignore the effects of elastic
responses. In this thesis, the response characteristic was considered by the tank test and the calculation. The
underwater platform of large draft can decrease responses in waves.

In this paper, the applicability of a space-time homogenization method is discussed for unsteady state heattransfer problems. Changing the relative dimensions of small parameters for time and space, various set ofKeisuke

KazumiApplicability of Homogenization

two scale boundary value problems are studied from mathematical and physical points of views. ThreeYONEDA

MATSUI

Method for Unsteady Problems

different type of two scale boundary value problems are validated, in each of which, only the macroscopic orthe microscopic changes can be described. Representative numerical simulations are introduced to show
their differences in simplified one-dimensional problems.