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Helix Technologies Pty Ltd
ABN 67 269 614 528
PO Box 610, Morley WA 6943
22 Donna St, Morley WA 6062
Perth, Australia
tel +61 8 9275 0635
fax +61 8 9275 0615
email
sales@helixtech.com.au
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Keywords
Conveyor Design, Chutes, Pipe Dc.
Design, Pumps etHelix Technologies Financial and Engineering Software.
Financial Analysis, Share Portfolio, Investment Analysis, NPV, IRR, Cash Flow, Discounted
Cash Flow, Depreciation Calculator, Loan Calculator, money, dollar, helix delta,
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As Tecnologias de Helix Software Financeiro de Engenharia.
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Helix delta-T Dynamic Analysis
Typcial 3 dimensional graph of Belt Tensions
along conveyor.
The conveyor dynamic analysis program allows designers to perform
full flexible body conveyor design. The new program builds on the strong base formed
by the Helix delta-T5 “Static” design program. This new version calculates the transient
belt tensions and velocities during starting and stopping of a conveyor.
The program
allows the user to input any number of drives, brakes, pulleys etc. and allows for
input of drive torque / speed curves, delay times, braking torques, flywheels and
inertia effects.
After the dynamic calculations have been performed, the user can
view and print two dimensional and surface plot three dimensional graphs for belt
tensions, belt velocities, strain rates and take-up movement versus time step for
all points along the conveyor.
The dynamic calculation process uses sophisticated
variable step Runge Kutta method integrators for solving the complex differential
equations involved. The dynamic calculations are easy to use and engineers who have
static conveyor design experience can perform these complex dynamic simulations
using the software.
The program allows users to easily model the belt transient
tensions and velocities during starting and stopping of conveyors, view the movement
of the take-up pulley during starting and stopping, predict the maximum transient
belt tensions at any point along the conveyor, as well as timing these transients.
Dynamic calculation results can be compared with the rigid body static calculations
in the delta-T5. The program also allows users to predict the magnitude of transient
loads on conveyor structures, calculate the torque loadings on gearboxes and couplings
during starting and stopping, eliminate conditions that may cause equipment failures.
Dynamic tuning can also be performed by changing the start delay times on different
drives. Users can add torque control or speed control on drive acceleration, add
delay times for multiple drives for dynamic tuning, add flywheels to pulleys to
optimise starting and stopping and add brakes to pulleys as required.
Typical Belt Velocities graph for
a stopping conveyor - note how drive speed drops suddenly after power is cut. This
causes low tension waves to propogate down the conveyor belt.
Click for delta-T5
Static Design Reports sample file or
Dynamic Design Reports sample file.
Download a powerpoint presentation
about the new Dynamic Analysis version by clicking
here or download
a
Dynamic Analysis case study.
View a PDF file brochure on
the new
Dynamic Analysis version.
View a report showing how dynamic analysis can be used to determine loads on gearboxes
and conveyor holdbacks
Dynamic Analysis Gearbox and holdback loading sample report
Helix Technologies has supplied and supported the conveyor
dynamic analysis design program to many conveyor designers over the past 4 years.
You can see more details on what inputs are required
for doing dynamic analysis in the Helix delta-T Demo Program.
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Helix Technologies - 01 November 2007 |