GA-EV203 Electromagnetic vibration testing machine

Beschrijving

1.Producttoepassing

Vibration test is a process of exciting or shocking some part or device to observe its reaction in real environment. Vibration test is widely applied in many fields, ranging from circuit board, airplane, ship, rocket, missile, auto, household appliance and other industrial products.

Gonoava can offer you the whole vibration and testing proposal, and provide you with the quality certificates of products according to national and international standards, including GB, GJB, UL, HIJ, VAN, ISO, BS, MIL, IEC and ASTM standards.

2.Type Selection Formula of Vibrator and Structural Diagram of Vibration Generator

① Test conditions provided by your company;

② Test types: sine sweep; random;

③ Frequency response range: 2 to 3000Hz

④ Formula: A(G)=(2πf)2Dcm/980≒A=0.002DmmF² D=A/0.002F²

F=M(kg) ×A(G)

 

3.Principle Block Diagram of Equipment

 

4.Device configuration description

 

Item	Assignment description	Quantity
1	Shaking table body
	VG300-40 Electromagnetic excitation generator	1Piece
	B751D Cooling fan (including silencer)	1Piece
	VT40 Vertical extension platform 400mm*400mm	1Piece
	H40 Horizontal oil film slide 400mm*400mm	1Set
2	Digital switching power amplifier
	SA03K Digital switching power amplifier	1Piece
	Servo protection system	1Set
	field power supply	1Set
3	Digital vibration controller
	Digital vibration controller host	1Piece
	System acceleration sensor	2Pieces
	control the computer	1Set
	Control software installation CD-ROM	1Set
4	Willekeurige bijlage
	Extend the cable and air duct	1Set
	Operation instructions, inspection reports, certificates, maintenance manuals, enz	1Set
	Accessory special tool	1Set
	Vibrating bar/batten fixture	1Set
	aseismic airbag	4Pieces

5.technische parameters

VG300-40 Electromagnetic excitation generator parameters
maximum sine excitation force	300Kg.f peak
Maximum random excitation force	300Kg.f r.ms
Maximum impact exciting force	600Kg.f peak
frequency domain	1～4000 Hz
maximum displacement	40mm p-p
maximum speed	2m/s
maximum acceleration	100G(980 m/s2)
maximum load	120 kg
Isolation frequency	2.5 Hz
Moving-coil diameter	Ф150 mm
Moving-coil mass	3kg
Table screw	13×M8
Magnetic leakage	＜10gauss
Dimensies	780mm×570mm×660mm
Bench weight	About 600Kg
SA03K Digital switching power amplifier
output power	3KVA
output voltage	100V
current output	30A
Power amplifier size	600mm×900mm×1130mm
gewicht	260KG
Servo protection system
function	Temperatuur, wind pressure, overdisplacement, overspanning, overstroom, input undervoltage, external fault, control power supply, logic fault, input shortage equal
Digital vibration controller VCS-2
hardware configuratio	2 input channels,1 output channel Sinusoidal, random, typical shock
control the computer	Original brand computer, LCD monitor (including keyboard/photoelectric mouse)
software	Chinese/English operation, time domain and frequency domain analysis, signal source, sine sweep frequency analysis, enz. Can automatically generate WORD test report, signal and data display, opslag, set test parameters and analysis functions.
operating system	Ramen 10
Acceleration sensor LTE	Frequency range: 1-7000Hz Sensitivity: 30PC/g Temperatuurbereik: -40-160 ℃
VT40 Vertical extension platform
Material quality	Aluminum/magnesium alloy
Platform size	400 mm×400 mm
Fixed hole position	M8 Stainless steel screw sleeve, durable
Upper service frequency	2000 Hz
Gewicht	14KG
H40 Horizontal oil film slide
Material quality	Aluminum/magnesium alloy
table size	400 mm×400 mm
Fixed hole position	M8 Stainless steel screw sleeve, durable
Upper service frequency	2000 Hz
Gewicht	25KG
B751D Cooling fan (including silencer)
Fan power:	0.75 kW
flow	11 m3/min
electrical requirement
Electric source	3 phase 380V/50Hz, 6.5KVA
ground resistance	≤4Ω

6.equipment performance:

6.1, shaking table body VG300-40

6.1.1, moving circle

The shaker is equipped with cast and hand-machined moving rings, photoelectric pneumatic load support system and double bearing axial guidance. Double bearing guide is a unique feature that helps to reduce the dynamic crossing and rotation of the axis during vibration testing, with superior durability.

6.1.2, excitation coil

Double magnetic circuit structure, low magnetic leakage, uniform magnetic field

6.1.3. Surface of the platform body

Using advanced phosphating treatment and automobile paint technology, it has long-term anti-wear and anti-rust effect.

6.1.4, the station system cold:

Low noise fan is adopted, air inlet structure of the platform is improved, honeycomb air duct is adopted in the excitation coil, double-layer split air duct is adopted in the magnetic ring, and new air duct design is adopted to enhance the cooling effect.

6.2, SA digital switching power amplifier

The SA series digital switching power amplifiers use reliable MOSFET or IGBT technology, A. High stability and reliability b. Meet the requirements of the EU “CE” standard c. Sinusoidal frequency-doubled pulse width modulation technique is adopted, and the signal-to-noise ratio of power amplifier is high. D. The working principle of switching power supply, high conversion efficiency. e. Electronic automatic flow sharing technology f. Good safety performance.

6.3, servo protection system

Complete protection functions, including power grid overvoltage, undervoltage, phase deficiency, logic failure, power module through, overtemperature, output overcurrent, output overvoltage, drive power, station body overdisplacement, station body temperature, external linkage, enz

6.4. Vertical expansion platform

The extension platform is usually used as a platform for mounting larger specimens, which can be square or round or user-defined. In order to reduce the influence of dynamic characteristics of the expansion platform, all the expansion platforms must be modeled to analyze their modal frequencies. These expansion platforms are generally made of magnesium alloy casting and attached with damping materials

6.5, photoelectric automatic alignment system

Automatically adjust the position of the moving coil to keep it in balance. The automatic alignment system ensures that the moving coil is always in a central position during loading and unloading.

6.6, horizontal slide table

The horizontal slide design has high overturning moment and lateral limitation. This design concept, combined with the standard horizontal slide device, has a high dynamic torque limit while maintaining the damping characteristics of the guiding oil film. The horizontal slide table is composed of a slide board, a connecting head, a natural granite plate, a horizontal slide base and an independent oil source.

 

7. Introduction to digital vibration controller

The vibration controller adopts the advanced distributed structure system, the closed-loop control is realized by the DSP processor, and the PC is independent of the control ring, which ensures the real-time and efficient control system, can respond to any change of the test system in time and quickly, and ensure the stability and high precision of the control. The hardware adopts 32-bit floating point DSP processor with main frequency up to 300MHz, ADC/DAC with 24-bit resolution, and high-precision floating point digital filter and low noise design technology of hardware circuit. The controller randomly controls the dynamic range of more than 90dB, and the signal-to-noise ratio is more than 100dB.

 

7.1, vibration controller features:

A, High performance and reliability

The closed-loop control is realized by the DSP processor, and the PC is independent of the control ring, which ensures the real-time and efficient control system, can respond to any changes in the test system in a timely and rapid manner, and ensure the reliability and high precision of the control. All input channels have a 24-bit resolution ADC, low noise hardware design, and built-in analog and digital anti-aliasing filters, which effectively ensure high precision analysis.

B, eenvoudige bediening

Windows-based application software is easy to operate and rich in auxiliary functions. The system’s powerful automatic wizard and automatic test report generation make the repetitive and boring test tasks easy. The test parameter Settings are rich and rigorous, and the USB2.0 interface makes it more closely and harmoniously connected to the computer.

C, powerful function and flexibility

Vibration controller A powerful vibration control platform that can complete a number of complex tasks. On the same hardware platform, different application software can be configured to complete a variety of analysis tasks to meet your different test analysis needs. The controller adopts modular design and can configure corresponding hardware and software according to different user needs to meet the different needs of users.

D. Test safety

The controller can provide small-order signal control to get a preview of the system vibration control. This method can help test engineers determine noise levels in advance and get a rough understanding of characteristics such as the transfer function of the system. There are also a number of security checks and interlock Settings to ensure the maximum safety of testers, test objects and vibration table equipment. If the system is abnormal, you can immediately press the built-in stop key to end the test

e. Generate test reports

Support one-click quickly generate word format or PDF format test report function, you only need to click the report generation button to get the current test results. From the basic test control function description to the specific test setting parameters, from the control target spectrum curve to the test time and frequency domain curve, everything is available. Convenient for you to modify according to different test report specifications, can be printed directly and print preview, and can be sent online.

7.2 Function description of digital vibration controller:

Random control

According to the customized power spectrum diagram (developed by the target spectrum editor), the stochastic control adopts the transfer function equalization method, continuous output of Gaussian random signals, fast implementation of real-time accurate multi-channel closed-loop control, and built-in adaptive control algorithm can quickly respond to the nonlinear, resonance frequency and load changes of the system.

Frequency range: 0~4800Hz, can be extended to 18750Hz

Oplossing: 100,200,400,800,1600,3200 lines

Control power state range: >90dB

Control policy: single channel control, weighted average, maximum, minimum

Sine control

Sine provides analog quality sine and sine sweep signals and controls the amplitude of the sine waveform. You can set the resident order, resident frequency, and determine the resident duration by setting the time or the number of sinusoidal signal cycles.

Frequency range: 1Hz~5000Hz, can be extended to 10000Hz

Closed loop time: 5Mevr

Harmonic distortion: <-100dB

Frequency sweep mode: Linear frequency sweep 0 naar 6000 Hz/min

Logarithmic sweep frequency 0 naar 100 Oct/min

Frequency scanning direction: up or down

Scanning duration: can be set to the number of scanning frequency, time

Classical Shock

The transfer function equalization method is adopted, which supports half-sine wave, bell wave, rectangular wave, trapezoid wave, front peak sawtooth wave, back peak sawtooth wave and triangle wave. The user can also input the pulse peak value as required.

Pulse duration ranges from 0.5 to 3,000mS

Maximum analytical bandwidth 18750Hz

Frame size: Maximum 16384

Meet standards: MIL-STD-810 (US military standard), ISO standards, user-defined interrupt control limits.