snap fit designs for plastic injection molding
Tài liệu A systematic computer-aided approach to cooling system optimal design in plastic injection molding docx
Ngày tải lên :
12/02/2014, 22:20
... local 1D
transient analysis is performed for the plastic part using an
implicit finite difference method with a variable mesh. An
iterative procedure is developed for coupling the cycle-
averaged ... less unwanted informa-
tion about internal points is obtained. Therefore, the BEM
is particularly well suited for mold cooling analysis.
The boundary integral equation (BIE) for Eq. (1) can be
written ... optimal
design in plastic injection molding
H. Qiao
Ã
Cardiff School of Engineering, Queen’s Buildings, The Parade, PO Box 925, Cardiff, CF24 0YF, UK
Received 10 December 2003; received in revised form 10...
- 10
- 1.3K
- 2
Tài liệu A scaffolding architecture for conformal cooling design in rapid plastic injection moulding doc
Ngày tải lên :
12/02/2014, 22:20
... melt and a near uniform cooling
performance can be achieved.
5 Results of scaffold cooling performance
The advent of computer-aided engineering (CAE) technol-
ogy for plastic injection moulding ... as for rapid plastic injection
mould.
5.1 Cooling performance investigation of cooling channel
by meltflow analysis
Cooling performance analysis will find the temperature
distribution in a plastic ... configuration within the
injection mould. However, LST moulds are used only for
low melting thermoplastics and are not appropriate for the
injection- moulding process with thermosetting plastics or
high-temperature...
- 20
- 965
- 0
FiberGuide® Snap-Fit Junction
Ngày tải lên :
18/10/2013, 20:15
... FiberGuide
đ
Snap- Fit Junction
ADCs FiberGuide
đ
System is the industrys most comprehensive fiber raceway
system. ... supporting
strength and provides superior protection to critical fiber cables.
ADC’s FiberGuide Snap- Fit Junction is a completely tool-less junction. With no
additional tools needed to install or ... junction is ready to install
immediately upon arrival. Quick, and easy to use, the FiberGuide Snap- Fit Junction
saves installers valuable time and money.
Features:
ã Reduces installation time...
- 2
- 226
- 0
A comparison of real and simulated designs for vibratory parts feeding
Ngày tải lên :
03/01/2014, 19:15
... percentages for each experiment, the orders of
the simulated and physical experiments agree for the top
three outcomes. These are the most significant, since they
account for over 95% of the outcomes. For ... gives the matrix for the corresponding physical
experiment.
4.2 Stochastic Matrices
Figures 6 and 7 show results for three simulated and ac-
tual mid-sizedcylinder experimentsperformed on the single
Slope ... Simulated Designs for Vibratory Parts Feeding
Dina R. Berkowitz
John Canny
dberk@cs.berkeley.edu jfc@cs.berkeley.edu
Department of Electrical Engineering and Computer Science
University of California,...
- 6
- 599
- 0
Scientific injection molding
Ngày tải lên :
06/01/2014, 21:03
... Bushing
Hot Runner Systems
Injection Molding Tooling
Valve Gate Shut Off System
Bushings are Opened for Injection
Recommended
runner sizes
Optimizing Cycle Time
Source: Injection Molding Magazine article
Source: ... cosmetic surface may cause surface
imperfections.
Source: GE Plastics
It is suggested that direct gates not be used in
molding reinforced resins into rectangular
shapes. Fiber orientation may
result ... Considerations
ã Molding Cycle.80% is cooling time
ã Flow type.Laminar or Turbulent
ã Flow rateGPM
ã Reynolds number of > than 5000 for
turbulent flow
ã Thermal conductivity of mold steel
ã Plastic...
- 141
- 571
- 3
channel adaptive technologies and cross layer designs for wireless systems with multiple antennas
Ngày tải lên :
01/06/2014, 07:54
... performance measure (as illustrated in Figure P.2). For
example, the physical layer is responsible for the reliable and efficient deliv-
ery of information bits. The MAC layer is responsible for ... xxxi
tation can be performed at the MIMO transmitter. In fact, the adaptation
across the spatial domain contributes to significant performance gains over
open-loop performance and therefore has received ... MAC layer designs for wireless systems follow the isolated
approach where there is no cross-optimization across the physical layer and
the MAC layer. For instance, a lot of research effort has...
- 544
- 313
- 0
bioreactor designs for solid state fermentation
Ngày tải lên :
12/06/2014, 11:37
... device,
Biochemical Engineering Journal 13 (2003) 113–125
Bioreactor designs for solid state fermentation
A. Durand
∗
Platform for Development in Biotechnology, UMR-INRA 1082 (IBQ), 17 Rue Sully, ... between lab-scale and industrial-scale designs. It
highlights the main designs that have emerged over the last 10 years and the potential for scaling-up for each category of reactor.
â 2002 Elsevier ... processes are developed. Finally,
for some industrial applications (production of spores for
cheese making for example), SSF constitutes the sole so-
lution for a production process and now,...
- 13
- 497
- 0
báo cáo hóa học:" Research Article Diversity-Enabled and Power-Efficient Transceiver Designs for Peak-Power-Limited SIMO-OFDM Systems" potx
Ngày tải lên :
21/06/2014, 18:20
... error performance in practice, it gives
an SER lower bound for this channel. For OFDM, by setting
σ
2
s
= P
peak
and assuming no clipping happens, Monte Carlo
simulation gives the SER curve for this ... decision
s is obtained by hard decoding on s,denoted
as
s =s.
Therefore, for uncoded SIMO-OFDM, MRC is essen-
tially the zero-forcing (ZF) and also the maximum-
likelihood (ML) equalizer in the ... antenna diversity [10],
for example, maximal ratio combining (MRC) and selective
combining (SC). Before discussing the peak-power-limited
case, we briefly review the MRC method for the linear SIMO-
OFDM...
- 11
- 338
- 0
báo cáo hóa học:" Research Article Robust THP Transceiver Designs for Multiuser MIMO Downlink with Imperfect CSIT" doc
Ngày tải lên :
21/06/2014, 20:20
... transceiver designs
for multiuser MIMO downlink in the presence of imperfect
CSIT. We consider two widely used models for the CSIT
error [21], and propose robust THP transceiver designs
suitable for ... transceiver design for SE model
of CSIT error is presented in Section 3.Theproposed
robust transceiver designs for NBE model of CSIT error are
presented in Section 4. Simulation results and performance
comparisons ... designs under
SE and NBE models for CSIT errors. For the SE model, we
proposed a minimum SMSE transceiver design. For the NBE
model, we proposed three robust designs, namely, minimum
SMSE design,...
- 13
- 231
- 0
Báo cáo hóa học: " Research Article Eigenstructures of MIMO Fading Channel Correlation Matrices and Optimum Linear Precoding Designs for Maximum Ergodic Capacity" pdf
Ngày tải lên :
22/06/2014, 19:20
... channels, Ph.D. thesis, Stan-
ford University, Stanford, Calif, USA, May 2001.
[7] A. Scaglione, P. Stoica, S. Barbarossa, G. B. Giannakis, and
H. Sampath, “Optimal designs for space-time linear precoders
and ... based on full channel knowledge for
MIMO systems in frequency-flat and -selective channels has
been investigated by many works. For a detailed overview on
the designs for frequency-flat channels, see ... Therefore, the precoder stru cture can be written as
W
= ΦΣ
1/2
Γ, (16)
where Γ is an arbitrary unitary matrix that has no effect on
the system performance, and therefore can be set to iden-
tity for...
- 9
- 288
- 0
