shock test machine

Transcription

shock test machine

Halfsine
Technical subject to changes without prior notice !
SM-105-MP
SHOCK TEST MACHINE
Sawtooth
Squarewave
Regelungs- und Messtechnik
Dynamic Test Systems
GUTENBERGSTRASSE 27 D-21465 REINBEK / HAMBURG GERMANY
TEL. 040 / 727 603 -0 FAX 040 / 722 30 66 email: info@RMS-TestSystems.de
SM-105-MP
SHOCK TEST MACHINE
Specifications
Dimensions
Base (Floor area required)
(24 in. x 24 in.)
610 mm x 610 mm
* Height (Floor to top of control panel)
(43 in.) 1092 mm
(Floor to carriage, down position) (49 in.) 1245 mm
(Floor to top of safety shield)
(62 in.) 1575 mm
Weight
Installed Weight
(approx. 1395 lb.) 632,8 kg
Shipping Weight
(approx. 1655 lb.) 751,0 kg
Specimen
Weight
maximum (50 lb.) 22,7 kg
Height
Not limited by machine
Size
Not limited by machine
Center of gravity of specimen must be within (1 in.)
25,4 mm of center of carriage
Performance
Stroke
maximum (17 in.) 432 mm
Terminal Velocity
(330 in.) 8382 mm per sec. (no load)
(260 in.) 6604 mm per sec. ((30 lb.) 13,6 kg specimen)
Cycling Rate
up to 8 cycles per minute
Pulse Generator
Carriage Mounting
Hole Pattern SM-105-MP
10.500 D
Elastic Pads
Half Sine
Lead Pellets
Terminal Peak Sawtooth
Special Generators
Square Wave
Utilities
Power
230 V, 50 Hz, Single Phase
Air Pressure
100-125 psi Filtered / 7 - 9 bar
235
Air Requirements, Maximum
4 S.C.F.M / 100 l/min
Microprocessor
Program
8.000 D
1 to 10 Test
Conditions can be programmed with repetition of
up to 100 Drop Cycles.
6.000 D
4.000 D
(25) 3/8-16
INTERNAL THREADED
STEEL INSERTS
US-Standard Version **
* Airmount Inflated
** other versions available on request
Subject to change without prior notice
SM-105-MP
SHOCK TEST MACHINE
Description
Carriage
The SM-105-MP is a microprocessor controlled,
pneumatically powered shock machine for accurate,
repeatable laboratory and production impact testing of
specimens up to (50 pounds) 22,7 kg. With
appropriate pulse generators, it will produce half sine,
sawtooth, and square wave pulse shapes to meet
exacting military and industrial specifications or
individual test requirements. Generated waveforms will
comply with typical military specifications, such as MILSTD-202, MIL-STD-810, and MIL-STD-750. The SM105-MP is completely portable and requires no special
floor preparation or bolting. The only locational
requirements are availability of compressed air,
(115 V/ 60 Hz - US Standard) or 230 V/ 50 Hz (European
Standard) power, and a floor that is reasonably level.
The floor must support the weight of the machine plus
the test specimen and provide a nominal safety factor to
accommodate minimal shock loads. The machine may
be moved with a fork lift truck.
The carriage is a conical shaped aluminum casting with
mounting surfaces machined to dose tolerances. lt has
been designed for optimum strength-to-damping ratio.
Steel inserts provide for attaching specimens or fixtures
to the carriage, as shown on the back cover.
Base
The base assembly functions as an inertial mass and
reacts with the falling carriage to generate a shock
pulse. The assembly is made of high-strength
reinforced concrete, encased in a steel jacket, and is
supported on tour air mounts. It supports a carriage and
guide rod and contains a pneumatic cylinder assembly
an electronic pneumatic control system, and a control
panel. The machine is shipped completely assembled.
Air Mount Supports
The pneumatic supports, built into the base of the
machine, are inflated by the machine's compressed air
supply and effectively isolate impact forces, reducing
their transmission to the floor. Air pressure and inflation
are controlled by a regulator and pressure gauge and
may be adjusted to suit specific bad and test conditions.
Shock Pulse Generators
A variety of elastomer pads, lead pellet molds, and
pneumatic pistons for generating halt sine, sawtooth,
and square wave pulse shapes are available for this
machine. The pads are easily changed to meet a wide
range of pulse requirements. Elastomer pads have
proved to be the most economical and versatile
generators for half sine wave forms. Molds are supplied
for casting lead pellets to generate terminal peak
sawtooth pulse shapes.
Maintenance
RMS / AVEX pneumatic machines are designed and
constructed for long Service life and minimum
maintenance. The pneumatic, electronic, and electrical
systems are arranged for easy access by maintenance
personnel or technicians.
Controls
The machine's pneumatic components are controlled
by a self-contained microprocessor. A key pad,
conveniently located on the top control panel, programs
the microprocessor for charge pressure, drop height,
braking, cycle count, and instrumentation trigger.
Electrical power is provided by the top control panel key
lock switch. Depending on the number of cycles
programmed, the microprocessor will direct the
machine to initiate one or multiple drop cycles at a rate
of up to 8 cycles per minute. A valve plate supporting the
assembly of valves, pneumatic and electrical
connections, and microprocessor is mounted on the
machine to provide easy access for maintenance and
adjustments.
Operation
The machine is powered by compressed air with
pressure ranging from (100 to 125 psi) 7 - 9 bar.
The following describes a typical drop cycle:
Compressed air is introduced to the lower side of the
piston, raising the carriage to a selected height as
determined by microprocessor programming. Once the
height is reached, the holding brake is applied. The lift
air is dumped and compressed air is introduced to the
upper side of the piston to a desired "charge” pressure,
which is measured by a transducer. As soon as the
desired charge pressure reaches the proper amount,
the microprocessor actuates the valve which releases
the pressure on the holding brake. The carriage is then
driven downward by the charge pressure, impacting on
a pulse generator mounted on the anvil. Upon impact,
the microprocessor directs the brake to be actuated,
holding the carriage in a rebound position and
preventing secondary impact. At the same time, the
microprocessor will trigger the sweep of an oscilloscope
or other instrumentation for recording the shock pulse.
19-06-07.cdr
Acceleration sensor selection
Measurement module SWE382 42TE
with power supply SWE350 and
charge amplifier SWE 373
USB oscilloscope „Pico 4224"
• 12 bit resolution, up to 16 bits with enhanced resolution
• bandwidth 20 MHz (10 MHz in ±50 mV area)
• 80 MS/s real time sample rate
(80 MS/s for 1 or 2 channels 20 MS/s for 3 or 4 channels)
• 32 MSamples buffer size
• ±200V overload protection
• USB 2.0 Interface, power completely from PC via USB
• BNC connectors for connection of standard sensor heads
• In a kit with handy carrying case and accessories.
SHOCK MACHINE MODEL SM-105
Standard Performance Envelope for
SQUARE WAVEFORMS
Avex Electronic Inc. a Benchmark Company
4807 Bradford Dr.
Huntsville Al. 35805 USA
Fax 256-722-6802
Tel. 256-722-6800
1,000,000
2.0
300,000
5.0
1.0
0
0.5
5
0.2
5
0.1
45
0.0
500,000
GENERAL NOTES:
1. The AVEX SM-105, equipped with applicable standard generators,
will produce accurate, repeatable, square waveforms within the
indicated envelope.
6.0
700,000
3.0
4.0
100,000
70,000
50,000
0
10
30,000
50
10,000
7,000
15 10
ZERO LOAD
1,000
700
5
(G)
ACCELERATION
- VELOCITY (inch/sec)
- DEFLECTION (inch)
20
3,000
Indicated data is based upon current AVEX equipment and subject to change without prior notice
25
5,000
2. Consult AVEX engineering for impulse requirement falling outside
of the envelope.
3. The parallel lines of constant velocity and of constant deflection
are characteristic parameters indicating dynamic requirements
for the classical waveforms and are to be used for engineering
reference.
4. The standard waveforms tolerances and are ±10% on amplitude
and duration. Generated waeforms will comply with typical military
specifications such as MIL-STD-202C, MIL-STD-810 and
MIL-STD-750.
5. Specific shock generator performance data is available upon
request.
500
300
1
30 lb. SPECIMEN
100
70
0
80
50
0
70
30
7 10
0
20
5
0
30
3
0
90
.5 .7 1
0
40
.3
15
0.0
5
00
0.0
.03 .05 .07 .1
05
0.0
3
1
.01
0
50
5
01
0.0
7
5
00 00
15 10
0
60
10
30
50 70 100
300 500
1,000
3,000
DURATION (ms)
SAWTOOTH WAVEFORMS
4807 Bradford Dr.
Fax 256-722-6802
Tel. 256-722-6800
1,000,000
5.0
2.0
300,000
GENERAL NOTES:
will produce accurate, repeatable, sawtooth waveforms within the
indicated envelope.
6.0
1.0
0
0.5
5
0.2
500,000
5
0.1
45
0.0
700,000
3.0
of the envelope.
reference.
MIL-STD-750.
request.
4.0
100,000
70,000
50,000
50
10,000
0
10
30,000
7,000
15 10
ZERO LOAD
1,000
700
5
(G)
ACCELERATION
- DEFLECTION (inch)
20
3,000
25
5,000
500
300
1
30 lb. SPECIMEN
100
70
0
80
50
0
70
30
0
50
.5 .7 1
3
5
0
20
.3
0
30
.03 .05 .07 .1
15
0.0
0
01
0.0 5
00
0.0
1
.01
05
0.0
3
0
90
0
40
6
01
0.0
7
5
00 00
15 10
0
60
10
7 10
30
50 70 100
300 500
1,000
3,000
DURATION (ms)
HALF SINE WAVEFORMS
4807 Bradford Dr.
Fax 256-722-6802
Tel. 256-722-6800
1,000,000
300,000
3.0
5.0
2.0
1.0
0
0.5
5
0.2
5
0.1
45
0.0
500,000
GENERAL NOTES:
will produce accurate, repeatable, half sine waveforms within the
indicated envelope.
6.0
700,000
4.0
100,000
70,000
50,000
30,000
0
10
50
10,000
7,000
ZERO LOAD
1,000
5
(G)
ACCELERATION
- DEFLECTION (inch)
15 10
3,000
25
5,000
of the envelope.
reference.
MIL-STD-750.
request.
700
500
300
1
30 lb. SPECIMEN
0
80
100
70
0
70
50
00 00
15 10
0
60
30
0
50
7
.03 .05 .07 .1
.3
.5 .7 1
3
5
0
20
5
00
0.0
1
.01
15
0.0
05
0.0
3
0
30
5
0
90
6
01
0.0
0
40
10
7 10
30
50 70 100
300 500
1,000
3,000
DURATION (ms)
RMS worldwide distribution network
Headquarters
Hamburg / Germany
2008
ANSCHRIFT / CONTACT
RMS Regelungs- und Messtechnik
Gutenbergstrasse 27
21465 Reinbek / Hamburg
Germany
Tel.: +49 (0)40 727 603-0
Fax: +49 (0)40 722 30 66
info@rms-testsystems.de
www.rms-testsystems.de
SM105MP-V3-E-38/09/20

shock test machine

Transcription

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