ENGINEERING NEWS IN BRIEF
Issued by the Asian TOP Panel, April 2009
The Chinese Mechanical Engineering Society (CMES)
The Institution of Engineers, Indonesia (PII)
The Japan Society of Mechanical Engineers (JSME)
The Korean Society of Mechanical Engineers (KSME)
According to the agreement made in the 2nd Asian TOP Panel Meeting,
the ENGINEERING NEWS IN BRIEF (E-mail newsletter) has now been edited
by the JSME for the year 2009.
1) Cryogenic Cavitation Tunnel in JAXA (Source:
1) Cryogenic Cavitation Tunnel in JAXA
A thermodynamic effect in cavitation makes
a growth of cavity bubble delayed in cryogenic
fluids, and results in improving suction
performances and suppressing the cavitation
instabilities in rocket turbopump inducers.
Thus, quantitative estimations of the thermodynamic
effect in cavitation should be important
for the further improvement of inducers.
New cryogenic cavitation tunnel was constructed
at the Kakuda Space Center in the Japan Aerospace
Exploration Agency for a quantitative elucidation
on the thermodynamic effect in cavitation.
This report introduces long-stroke and nanometer-resolution
piezoelectric actuators based on a
hinge-mechanism of amplifying the displacement,
namely honeycomb-link mechanism. The
is realized by using a plate patterned
an eccentric honeycomb. When an actuator
applies a longitudinal elongation to
cell in the plate, a relatively large
is produced in the perpendicular direction.
Because of the periodicity of the structure,
it is possible to build up compact
A prototype XY stage of 84 mm ü~ 84
26 mm in size yielded a displacement
400 um at a voltage of 150 V for each
without mutual interference.
3) Analysis of Future Energy System in Japan using MARKAL
Yutaka Tabe, Hokkaido University
This paper introduces the MARKAL model as
one of analysis tools to evaluate the
change of energy system in a country,
describes an importance of establishment
of engineer network using energy system
The MARKAL model is composed of energy
energy supply technologies, energy
demand technologies and energy service
and these are connected by energy carriers.
The outline of the model and some examples
of parameter sets are explained. An
example, a study on the evolution of
demand and supply toward the year 2050
on the potential benefits of nuclear
utilization in Japan, is also presented.
In the energy system analysis, appropriate
modeling of the energy technologies
of parameters of each technology and
demand are extremely important. Therefore,
the engineer network using the energy
is significantly effective to develop
energy system model.
Koji Miyazaki, Kyushu Institute of Technology
5) The Projection of World Heritage Site -The Support System for Removing the Snow on Shiretoko Crossroad-
Soichiro Suzuki, Kitami Institute of Technology
In July 2005, the Shiretoko peninsula was registered on UNESCOüfs World Heritage list. The snow on Shiretoko crossroad has to be removed until üeGolden weeküf holidays for tourist. The snow removing work using a backhoe is very dangerous because of the heavy snow. We developed the support system of the snow removing work for the safety of the operator of the backhoe. This system can display the 3D virtual landscape under the snow by using a RTK-GPS. This system will be put to practical use in the near future.
6) The development of New Human-Symbiotic Robot ügEMIEW2üh
Masashi Koga, Hitachi, Ltd.
7) Heat Transfer Analysis during a Curing Process for UV Nanoimprint Lithography
Insoo Park, Si-Hyung Lim, Donghoon Shin, Kee Sung Lee,
8) Study of Impact Energy Propagation Phenomenon and Modal Characteristics of an Armored Vehicle Undergoing High Velocity Impact
Man Hoi Koo1, Hong Seok Lim2, Hak In Gimm1 and Hong Hee Yoo2,*
9) Investigation and Design of a New Shock Absorbing
Device that Cooperates
between Two Colliding Objects
Atsushi Kawaguchi1,*, Kai Sedlaczek2, Atsushi Kawamoto1 and Peter Eberhard2
Abstract : This paper deals with a new type of shock
absorbing device that cooperates between
two colliding objects. The new device
a four-bar-chain-like articulated mechanism
with some possible actuations. The
are assumed to be deployed in the pre-crash
phase (by sensing and identifying unavoidable
collisions) so as to provide an extended
deformable region between the two objects.
Moreover, by functioning like a four-bar-chain
mechanism, they produce a repulsive
by pushing each other and sliding in
opposite lateral direction. To investigate
the capacity of the proposed articulated
shock absorbing mechanism, a standard
optimization technique called SQP and
optimization technique called ALPSO
ALPSO is an attractive method for solving
multimodal optimization problems based
Particle Swarm Optimization and constraint
treatment using an Augmented Lagrange
We demonstrate ALPSO and show its applicability
to this problem. The optimization process
automatically determines the mode of
operation and gives an estimation of
development potential of the new device.
Naeem Ullah Dar1, Ejaz M. Qureshi2,* and M.M.I Hammouda1
1. Department of Mechanical Engineering,
University of Engineering & Technology,;
Abstract : Circumferential weld specifically in thin-walled
structures is a common joint type in
fabrication of structural members in
aeronautical and pressure vessel industries.
This type of weld joint suffers various
of weld-induced residual stress fields
and axial) and deformation patterns
shrinkage, radial shrinkage). These
have negative effects on fabrication
and result in low strength welded structures
that can lead to premature failures.
capture the distortions and residual
computational methodology based on
finite element model for the simulation
gas tungsten arc welding in thin-walled
is presented. Butt-weld geometry with
"V" for a 300 mm outer diameter
cylinder of 3 mm thick is used. The
phenomenon of arc welding is numerically
solved by sequentially coupled transient,
non-linear thermo-mechanical analysis.
accuracy of both the thermal and structural
models is validated through experiments
temperature distribution, residual
and distortion. The simulated result
close correlation with the experimental
11) Design and Experimental Study on Low-specific Centrifugal Fire Pumps
Shi Weidong, Zhang Desheng, Lu Weigang, Gao
12) A New Type Frictional Transducer
Li Renjun, Liu Hongzhao, Wang Zhongmin, Li
13) Research and Development of CAI System Based on Standard Solutions
Yang Bojun, Tian Yumei, Tan Runhua, Majianhong
The application process and the existing
arithmetic of standard solutions in
design were discussed, then the arithmetic
and the flow of software that are suitable
for the CAI system were constructed.
the support framework of knowledge
the arithmetic integrated the substance-field
(Su-F) analysis tool which was applied
model a technical or process problem
standard solutions tool, implemented
a solution. During the development
software product, static model built
on UML were used to construct the configuration
of system, and dynamic models were
describe the behaviors of system components,
then achieved software system analysis.
standard solutions CAI software was
with VC++ and XML_XSL, which have friendly
interfaces and can be used conveniently.
Under the help of this software, the
of a roller in the Chinese traditional
dropping pill packing is improved.
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