DynaLabs DYN-MS-440 440 N MS Shaker User Manual

June 3, 2024
Dynalabs

DynaLabs LOGO Model DYN-MS-440
440 N MS Shaker Product Manual

Product Support

If at any time you have questions or problems with the DYN-MS-440 shaker, p lease contact a Dynalabs engineer at:

Phone:    +90 533-727-98-50, (9 a.m. to 5 p.m., UTC +3)
e-mail: in     info@dynalabs.com.tr 

Warranty
Our products are warranted against defective materials and workmanship for one year. Defects arising from user errors are not covered by the warranty.

Copyright
All copyrights of this manual belonging to Dynalabs products are reserved. It cannot be reproduced without written consent.

Disclaimer
Dynalabs Ltd. provides this publication “as is” without warranty of any kind, express or implied, including but not limited to, the implied warranties of merchantability or  fitness for a particular purpose. This document is subject to change without notice, and should not be construed as a commitment or representation by Dynalabs Ltd.
This publication may contain inaccuracies or typographical errors. Dynalabs Ltd. will periodically update the material for inclusion in new editions. Changes and improvements to the product described in this manual may be made at any time.

Introduction

The DYN-MS-440 is designed to p rovide dynamic force excitation for modal testing of mechanical structures.
The DYN-MS-440 is a compact, lightweight and powerful general purpose electrodynamic shaker providing up to 440 N peak sine force.

General Information

2.1) Unpacking and Inspection
Dynalabs products provide adequate protection for undamaged products to be transported. Document the damages that occur indirectly during the transport and contact  the customer representative. Check all components of the shaker.
If there is a defect, please contact us.

2.2) System Components
The DYN-MS-440 has the following components:
– Electrodynamic Shaker
– Amplifier (DYN-SA-1100)
– Cooling Unit (Blower + Hose + Hose connection adapter + R 1/2 Pneumatic union)
– Power Cable
– Signal Cable
– Stinger Set
-Fuse
– User Manual

2.3) Theory of Operation
DYN-MS-440 is an electro-magnetic actuator. Electro-magnetic actuators are basically voice coils consisting of a permanent magnet and coil. The moving element can be the  coil or the magnet depending on the design requirements. The moving element is usually suspended by an elastic membrane.
DYN-MS-440 has a moving coil (driving coil) whose current is controlled for vibration generation. The stationary magnetic field is produced by a permanent magnet.DynaLabs DYN MS 440 440 N MS Shaker

Item Description
1 Amplfier Input
2 Cooling Port
3 Trunnion Handle

Specifications

Parameters Specifications
Output Force (Sinus) 440 N
Frequency 0-5 ki Iz
Displacement (Peak to Peak) 25 mm
Suspension Spring
Maximum Acceleration 100 g
Shaker Weight 11.8 kg
Cooling System Forced Convection
Operation Temperature Range 5-35 °C
Maximum Input Current 10A (RMS)
Amplifier External

DYN-SA-1100
Operation Voltage| 110/220 VAC
Sine Freq. Generator| Activated by pulling switch up
Sine Freq. Range| 0-15 kHz
External Signal Voltage Level| 10 VAC (PEAK)
Amplifier Weight| 4.9 kg
DYN-BLW-511 Monofaze Blower
Frequency| 50 Hz
Rated Power| 0.8 kW
Input Voltage| 230 V
Input Current| 5.2A
Blower Weight| 15 kg

2.5) Outline Drawing
The dimensional properties of DYN-MS-440 shakers are given below.DynaLabs
DYN MS 440 440 N MS Shaker - FIG

Operation and Installation

3.1) General
Refer to the figure below that shows the shaker connector configuration. Connect the shaker/amplifier cable to the shaker and amplifier. Connect the drive signal cable to the signal generator and connect the power cable of the amplifier. Then turn on the amplifier by pushing the on/off button. To increase gain up, turn the gain knob in clockwise direction. The user must turn off the gain button in order to power down the shaker.DynaLabs DYN MS
440 440 N MS Shaker - FIG 1

3.2) Amplifier
DYN-MS-440 uses an external power amplifier for drive signal amplification. Please note the wiring of the power amplifier given below.
3.2.1) Amplifier General DynaLabs DYN MS 440 440 N MS Shaker - FIG
2

3.2.2) Amplifier Internal Signal
The amplifier can generate sine signal from 1Hz to 15kHz with 1 Hz increments that the user can adjust with the Sine Frequency Generator Switch. Connect DC power source and drive signal to shaker power input. Activated by pulling switch up . Raise or lower the Sine Frequency Generator Switch to the desired Sine frequency. Adjust the Gain of the amplifier by turning the Gain Knob clockwise. The frequency of the generated sine signal will be visible on the LCD Screen.DynaLabs DYN MS 440 440 N MS Shaker - FIG 3

3.2.3) Amplifier External Signal
Start the external signal source. Activated by pulling switch down. Adjust the Gain of the amplifier by turning the Gain Knob clockwise. DynaLabs DYN MS
440 440 N MS Shaker - FIG 4

3.2.4) Amplifier Maintenance and Troubleshooting
The only user replaceable part is the fuse placed inside the amplifier as shown below . The fuse is 6A.DynaLabs DYN MS 440 440 N MS Shaker - FIG
5

3.3) Shaker-Structure Interaction (Stingers)
Stingers used in modal shakers are thin rods with a specific length yielding low lateral and high axial stiffness. The high axial stiffness is necessary to transmit the shaker force  directly to the test structure with high efficien cy whereas the low lateral stiffness is necessary for protecting the shaker from moment loads and to minimize shaker alignment  issues. The stingers are mounted on the shaker via a chuck. Force or impedance head sensors can be mounted on the other side.
The DynaLabs modal shakers stinger sets include chuck and 3 stinger rod sizes. The chuck consists of two pieces. The collet squeezes the stinger with the tightening effect of  the nut. Choose a collet size as close to your stinger diameter as possible. DynaLabs DYN MS 440 440 N MS Shaker - FIG
6

3.4) Shaker Alignment
Shaker alignment is a very important step of modal testing. Poor alignment can cause force components in unmeasured directions and can even damage the shaker. In order  to overcome this problem, the trunnion can be adjusted for proper alignment. Furthermore, the tip of the stinger can be removed during the alignment process in order to  reduce the free end deflection as shown above.

3.5) Shaker Mounting
The shaker is designed to rest on its rubber isolators. However, these isolators can be removed for rigid or semi-rigid mounting. If it is not possible to bolt down the shaker, hot glue is also a good mounting option.
The shaker can also be suspended by elastic bungee cords for lateral testing.
Additional inertial weight may be attached to the bottom of the shaker using hot glue.

3.6) Cooling
DYN-MS-440 does not require forced cooling up to 220N operation. In order to achieve full performance level of 440N use the cooling unit supplied with the shaker. The  cooling unit must be used in vacuum mode for best performance. The connections of the cooling unit are given as below. DynaLabs DYN MS 440
440 N MS Shaker - FIG 7

3.7) Frequency Response and Resonance
The following figure shows the acceleration levels/input voltage versus frequency of the shaker. DynaLabs DYN MS 440 440 N MS Shaker - FIG
8

4) Shaker Maintenance and Troubleshooting
The DYN-MS-440 shaker is a sealed device requiring no maintenance if the operating instructions described in this manual are followed. Repair of damage to the coil, exciter body or magnet core should not be attempted. The only user replaceable part is the fuse placed inside the shaker. In order to replace the fuse unplug all cables from the shaker and turn the cover in counter clockwise direction as shown. Then replace the fuse and close the cover. The fuse is 10A. For any other problem, please return the shaker to Dynalabs for proper repair.DynaLabs DYN MS 440 440 N MS Shaker - FIG
9

5) Safety
Please ensure that this manual section is reviewed and understood prior to installation, operation or maintenance of the equipment. The danger of electrical shock or fire  always exists in electrical equipment.
The DYN-MS-440 Shaker is designed for safe operation. Safety features such as electrical insulation on outer surfaces are provided for the safe operation of the shaker system.

6) Declaration of Conformity

This declaration of conformity is issued under the sole responsibility of the manufacturer.
The product(s) are developed, produced and tested according to following EC- directives:

  • 2014/35/EU – Low Voltage Directive (LVD)
  • 2006/42/EU – Machinery Safety Directive
  • 2015/863/EU – RoHS Directive

Applied standards:

  • EN 61010-1:2010
  • EN ISO 12100:2010
  • MIL-STD-810-H-2019 (Test Methods: 501.7 – High Temperature, 502.7 – Low Temperature, 514.8 – Vibration, 516.8 – Shock)

DYNALABS MÜHENDİSLİK SANAYİ TİCARET LİMİTED ŞİRKETİ declares that above mentioned products meet all the requirements of the above mentioned standards and regulations.

Murat Aykan, Technical Manager
Ankara, 15.07.2021

Documents / Resources

| DynaLabs DYN-MS-440 440 N MS Shaker [pdf] User Manual
DYN-MS-440 440 N MS Shaker, DYN-MS-440, 440 N MS Shaker, 440 N Shaker, MS Shaker, Shaker, 440 Shaker
---|---
| DynaLabs DYN-MS-440 440 N MS Shaker [pdf] User Manual
DYN-MS-440 440 N MS Shaker, DYN-MS-440, 440 N MS Shaker, Shaker

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>

Related Manuals