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Typical Training pdf - Anco Engineers Inc.

1. USING R 149 FOR EXTENDED PERIODS BE AWARE OF COMPETING FLOW DEMANDS RETURN FLOWS AND RESERVOIR LEVELS BE AWARE OF SMALL BUT POSSIBLE DYNAMIC INTERACTIONS ELECTRICAL ALWAYS USE UPS BE AWARE OF POSSIBLE SHORTING TO TABLE DUE TO DYNAMIC DAMAGE OF TESTED COMPONENTS INSTALL GOOD GROUNDING PROTECT AND INSPECT CABLES AND CONNECTORS UPS SYSTEM 5 ALWAYS USE UPS SYSTEM TO PROTECT AGAINST POWER GRID VARIATION OR FAILURE LOSS OF POWER WITHOUT THE UPS WILL RESULT IN UNCONTROLLED TABLE MOTION CONNECT ONLY SERVO CONTROLLER ACCELEROMETERS DIGITAL CONTROLLER PC AND MONITOR NEVER TURN APPLY HYDRAULIC PRESSURE IF THE SERVO CONTROLLER IS NOT ON 5 SHUT DOWN WITHIN 3 MINUTES AFTER POWER FAILURE TURN SYSTEM OFF IF LONG POWER FAILURES ARE POSSIBLE THE DYING TRANSIENT OF THE UPS CAN DAMAGE ELECTRONICS TESTING TRIPLE CHECK COMMAND AND SERVO CONTROLLER SETTINGS AND BNC CONNECTIONS e ALWAYS START WILL LOW DEMANDS AND WORK UPWARDS ANTICIPATE AND DEAL WITH POSSIBLE TEST ITEM FAILURE PROTECT THE ACTUATOR MAINTAIN AN EXCLUSION AREA 9 LISTEN TO YOUR TABLE TESTING CONTINUED MAKE SURE TEST OBJECT TO TABLE ANCHORAGE IS ADEQUATE 9 NEVER ALLOW ANYONE ON THE TABLE IF ENERGIZED OR OPERATING SOFT HARD STOPS THE SOFT URETHANE STOPS ENGAGE AT 190 mm AT 200 mm THEY PROVIDE APPROXIMATELY 10 TONS COUNTER FORCE 9 AT 220 mm THEY PROVIDE A
2. AND MAINTENANCE CAUTION 9 LIKE ANY POWERFUL MACHINE IMPROPERLY USED THE R R 149 HAS THE POTENTIAL TO CAUSE SERIOUS INJURY OR DEATH IMPROPER USE CAN ALSO CAUSE COSTLY EQUIPMENT DAMAGE BE TRAINED IN ITS USE UNDERSTAND AND OBSERVE ALL SAFETY ISSUES SAFETY ISSUES di HARD FAST POWERFUL PINCH POINTS 5 EXCLUSION AREA 5 HIGH OIL AND NITROGEN PRESSURE FLOW HIGH ELECTRICAL VOLTAGE POWER 9 HEAVY WEIGHTS CRANE 5 ENGAGE BRAIN BEFORE TABLE SAFETY ISSUES CONTINUED di POTENTIALLY DAMAGED TEST ITEMS 5 POTENTIAL TO OVERDRIVE 5 SENSITIVE TO POWER OFF OR LOSS 5 AUTOMATIC OPERATION 9 INTERACTION WITH OTHER LAB SYSTEMS 5 POTENTIAL EQUIPMENT DAMAGE REQUIRES TRAINED OPERATORS REQUIRES UPS RAUMOKO IS AN UNFORGIVING GOD SAFETY ISSUES DESIGNED SAFETY FEATURES miu 9 ELECTRONIC DISPLACEMENT LIMITS 9 PC LIMITS ON MAX X X X PC LIMITS ON MAX DRIVE VOLTAGE 5 AUTOMATIC DUMP AND ZERO PROGRAM ON SHUTDOWN OR E STOP UPS 5 SOFT HARD STOPS 5 FLASHING LIGHT ON ACTUATION DO BYPASS THESE FEATURES HYDRAULIC MAKE SURE CONNECTIONS STAY TIGHT ADDRESS ALL LEAKS PROTECT AND CHECK HOSES LOCK OUT PUMP IF SYSTEM IS OPENED 9 CLEAN UP OIL LEAKS IN A MAJOR VENTING WALK DON T RUN INTERACTION WITH OTHER LAB SYSTEMS BE AWARE OF PUMP STATUS ANCO STRONGLY RECOMMENDS AN IN LAB FLASHING LIGHT AND E STOPS CLOSE 3 MANIFOLD VALVES WHEN NOT
3. AND OIL CLEANLINESS ACTUATOR CARE CHECKS 9 ACTUATOR ALIGNMENT MAINTENANCE CONTINUED 7 AND CABLE TIGHTNESS ANCHORAGE INSPECTION 9 FLEX AND TABLE TOP CARE 9 ELECTRICAL CABLE CHECKS 9 SPARE PARTS AND CONSUMABLES 9 TABLE RELOCATION 9 ELECTRONICS AS NEEDED TYPICAL TESTING PROCEDURES INDUSTRIAL AND GOVERNMENT STANDARDS 344 TELCORDIA GR 63 QME 100 MIL STD 810 MIL STD 167 ETC DESIGN OF TEST OBJECT AND TEST PLAN CONSTRUCTION OF TEST OBJECT AND ATTACHMENT TO TABLE INSTRUMENTATION TYPICAL TESTING PROCEDURES CONTINUED 9 INSTRUMENTATION AND PC SET UP TABLE MASS POSSIBLY WITH DUMMY 5 SAFETY REVIEW PRELIMINARY TESTING AND DATA ANALYSIS 9 FULL SCALE TESTS e DATA ANALYSIS AND RETESTING AS NEEDED e TEARDOWN AND TABLE MAINTENANCE CLEANUP 10 TEST MASS AND SITE ACCEPTANCE TEST SAT COMMISSIONING SAT WILL DEMONSTRATE 5 SYSTEM COMPONENT T OPERATION PERFORMANCE SOFTWARE PERFORMANCE DOCUMENTATION R 149 USER S MANUAL THIS POWER POINT PRESENTATION GS SERVO CONTROLLER MANUAL DP MANUAL CD DELL PC MANUAL WINDOWS OP SYS MINOLTA PRINTER MANUAL WAVETEK MANUAL DYTRAN ACCELEROMETER AMP MANUAL SUPPORT ORQANIZATIONS ANCO Engineers COLORADO CENTIFORCE E MAIL SINGAPORE WEB SITE TELEPHONE DATA PHYSICS FAX SINGAPORE CALIFORNIA IN PERSON e GARDNER SYSTEMS CALIFOR
4. DIGITAL CONTROL AND DATA ACQUISITION DATA PHYSICS VECTOR 550WINSIGNAL CALC WITH FFT PROCESSORS 9 DELL PC MONITOR COLOR LASER PRINTER 15 CHANNELS ADC 1 CHANNEL DAC 9 16 ANTI ALIASING FILTERS ICP GUI DP SIGNAL STAR VECTOR WITH GUI DIGITAL CONTROL AND DATA ACQUISITION CONTINUED GRAPHICAL DISPLAY AND EXPORT TEST DEFINITION CALIBRATION DOCUMENTATION 9 PROGRAM SIGNAL CREATION SPECTRUM COMPATIBLE EARTHQUAKE 9 SYSTEM SAFETY MONITORING ITERATION EQUALIZATION 93 DYTRAN ACCELEROMETERS SAFETY ISSUES di 5 HARD FAST POWERFUL PINCH POINTS 5 EXCLUSION AREA 5 HIGH OIL AND NITROGEN PRESSURE FLOW 5 HIGH ELECTRICAL VOLTAGE POWER HEAVY WEIGHTS CRANE ENGAGE BRAIN BEFORE TABLE SAFETY ISSUES CONTINUED di POTENTIALLY DAMAGED TEST ITEMS 5 POTENTIAL TO OVERDRIVE 5 SENSITIVE TO POWER OFF OR LOSS 5 AUTOMATIC OPERATION INTERACTION WITH OTHER LAB SYSTEMS POTENTIAL EQUIPMENT DAMAGE REQUIRES TRAINED OPERATORS REQUIRES UPS RAUMOKO 15 AN ANGRY GOD SAFETY ISSUES DESIGNED SAFETY FEATURES 9 ELECTRONIC DISPLACEMENT LIMITS 9 PC LIMITS ON MAX X X X PC LIMITS ON MAX DRIVE VOLTAGE 5 AUTOMATIC DUMP AND ZERO PROGRAM ON SHUTDOWN OR E STOP UPS 5 SOFT HARD STOPS 5 FLASHING LIGHT ON ACTUATION DO NOT BYPASS THESE FEATURES MAINTENANCE 9 VALVE CLEANING 9 ACCUMULATOR CHARGING CHECKS BEARINGS GREASING CHECKS 9 FILTERS
5. PSD AND RMS VALUE THE SQUARE ROOT OF THE AREA UNDER THE PSD IS THE RMS VALUE OF THE TIME HISTORY IN THE FREQUENCY BAND CHOSEN GxG Hz FREQ Hz CREST FACTOR OCTAVES AND DECIBELS 9 THE CREST SIGMA FACTOR LIMITS THE MAX ACCELERATION ABOVE THE RMS TYPICALLY 3 4 TIMES HASH OCCURS ON A PSD DUE NOISE NONLINEARITIES AND NUMERICAL ESTIMATION LIMITS OCTAVE FACTOR OF 2 IN FREQUENCY db 20 AMPLITUDE RATIO SINE DWELL SINE SWEEP 5 SINE DWELL ONE OR MORE SINGLE FREQUENCY STEPS HELD FOR A GIVEN PERIOD OF TIME 5 SINE SWEEP A SINE WAVE OF CONTINUOUSLY VARYING FREQUENCY INCREASING OR DECREASING AT LINEAR Hz SEC OR LOGARITHMIC OCTAVES SEC 9 THE SINE AMPLITUDE IS DEFINED BV A FREQUENCV DEPENDENT SPECTRUM TRANSIENT SEISMIC A TIME HISTORY OF FINITE DURATION TYPICALLY RANDOM IN NATURE BUT CAN BE SINUSOIDAL IMPULSIVE ETC AS DESIRED BY THE USER Seismic N PONSE SPECTRUM 100 1 RESPONSE SPECTRUM 5 RESPONSE SPECTRUM 10 SPECTRAL ACCELERATION G s 1 0 0 1 1 0 10 100 1000 OSCILLATOR RESONANT FREQUENCY Hz DEVELOPMENT OF TABLE AND SITE RESPONSE SPECTRA THE AMPLIFICATION OF THE RS ABOVE TABLE CAPACITY 15 GIVEN APPROXIMATELY BY 1 SQRT 2B WHERE DAMPING FOR 0 01 lt B lt 0 10 AND 1 0 lt f lt 30 0 1 0 10 100 1000 FREQUENCY Hz RRS AND 5 RRS REQUIRED RESPONSE SPECTRA O
6. THESE USING AN APPROPRIATE SIZED WRENCH AND MODERATE TO HIGH HAND FORCE 5 OIL WEEPING MAY BE ACCEPTABLE MORE THAN 1 DRIP PER MINUTE IS NOT CABLE CARE 80 OF TABLE CONTROL FAILURES ARE DUE TO DAMAGED CABLES OR CONNECTORS CHECK CABLES AND CONNECTORS PERIODICALLY FOR WEAR OR DISTRESS AND REPAIR AS NEEDED CHECK CONNECTOR TIGHTNESS MAINTAIN CABLE SLACK FLEX COLLAR INSPECTION AND CARE INSPECT THE FLEX COLLAR ONCE EVERY 3 MONTHS CHECK FOR FATIGUE CRACKS IN FLEX CLEAN AND APPLY A COATING OF GREASE FOR CORROSION PREVENTION MAKE SURE BOLTS ARE TIGHT MAKE SURE THERE 15 A 0 5 mm MINIMUM GAP BETWEEN THE SUPER COLLAR AND THE FLEX TABLE CARE 5 AS NEEDED CLEAN WITH STEEL WOOL RE BLUE WITH A CLOTH AND APPLY A COATING OF OIL TO RETARD CORROSION IN HIGHLY CORROSIVE AREAS USE GREASE USE ONLY THE TAPPED HOLE GRID FOR ANCHORAGE AVOID TAPPING NEW HOLES OR WELDING USE TRANSITION PLATES TO AVOID NEEDING ADDITIONAL TAPPED HOLES 5 PROTECT SURFACE WITH PLASTIC IF TESTING ROUGH OR CORROSIVE SYSTEMS ELECTRONIC SYSTEMS AND PC 5 THESE SYSTEMS REQUIRE NO PERIODIC MAINTENANCE OTHER THAN PERIODIC DUSTING AND SOLVENT WIPING ON MALFUNCTION TO THE EQUIPMENT MANUAL OR PROFESSIONAL REPAIR SERVICES OFTEN THE PROBLEM IS LOOSE CABLE OR UNSEATED BOARD CHECK THESE FIRST THE CMOS BATTERY IN THE SERVO CONTROLLER AND PC MUST BE AS NEEDED RELOCATION OF T
7. ABLE THE TABLE CAN BE RELOCATED BY RELEASING ITS ANCHORAGE AND RECONNECTING ITS HOSES AND CABLES EXTENSIONS MAY BE REQUIRED THE TABLE TOP MUST BE SEPARATELY MOVED DUE TO CRANE CAPACITY LIMITATIONS RELOCATION REQUIRES APPROXIMATELY 1 MAN TOOLS SPARE PARTS AND CONSUMABLES GREASE AND GREASE GUN FUSES 5 ASSORTED NUTS BOLTS AND WASHERS 5 SPECIAL WRENCHES ACCUMULATOR AIR VALVES SPECIAL HIGH PRESSURE UNITS TOUCH UP PAINT BLUEING 9 FILTER ELEMENT TOOL BOX
8. BLE 0 1 1 0 10 100 1000 FREQUENCY Hz Achievable motion and 5 Response Spectrum for R 149 Table with 10 000 kg Test Specimen Mass m R 149 LAYOUT M20X2 5 THREAD ON 200 mm SPACING gt 30 mm DEEP 9 9 dg le sa gl 41 gt 9 9 9 9 9 4 6 O 6 6 6 6 6 6 6 6 6 6 4 ete ee nd F e e 12 e e e e e e ES 6 6 0 GAP AXIALLY STIFF ALLOWS TRANSVERSE AND ROTATIONAL MISALIGNMENT ROLLER BEARINGS 9 SETS 23 UNITS AIRBAG ASSEMBLY FOR STIFF IMPULSE BIAS ele x L 111 1 ACTUATOR 21 2 V 865 TM 24 PISTON JE o DRAIN DELTA P 200 757 L MIN 3 STAGE 7600 SERVO VALVE SERVO CONTROLLER TABLE HYDRAULIC MANIFOLD CHECK VALVE PILOT 3MICRON FILTER 2 GAL PILOT ACCUMULATOR CHARGED TO 1 000 PSI 2X25 GAL HIGH PRESSURE ACCUMULATORS CHARGED TO 1 000 PSI PILOT RETURN AND HAND MAIN LINE 25 GAL LOW DUMP PRESSURE ACCUMULATORS SEAL RETURN CHARGED TO 100 PSI TABLE DUAL LOOP CONTROL SYSTEM PC DIGITAL CONTROLLER SERVO DRIVE CONTROLLER RECORD DISPLAY EQUALIZE
9. E 9 ELECTRICAL CABLE CHECKS SPARE PARTS AND CONSUMABLES TABLE RELOCATION 9 ELECTRONICS AS NEEDED VALVE CLEANING 1 ASSEMBLY 5 51 2 PILOT VALVES AND 3 MAIN VALVES CAN BE PROFESSIONALLY CLEANED IN SINGAPORE FOR ABOUT USD 800 EACH 53 VALVES BE CLEANED BY TRAINED NTU STAFF 5 51 2 VALVES BE PARTIALLY CLEANED BY TRAINED NTU STAFF PROFESSIONAL CLEANING EVERY 2 YEARS OR AS NEEDED WHEN CONTAMINATED IS RECOMMENDED ACCUMULATORS 4 CHECK PRESSURE EVERY 30 DAYS OR WHEN TABLE USED 5 RECHARGE AS NEEDED TO 100 1000 PSI 20 THEY SHOULD HOLD PRESSURE FOR DAYS OR WEEKS REPLACE PISTON SEALS OR BLADDERS IF THEY LEAK FASTER 5 USE ONLY DRY NITROGEN BE CAREFUL WITH NITROGEN CYLINDERS BEARINGS 23 WIPE RAILS AND LUBRICATE BEARINGS EVERY 30 DAYS OR WHEN TABLE USED 5 USE HIGH QUALITY LITHIUM GREASE 5 USE GREASE GUN TO INJECT LUBRICANT UNTIL SOME SEAL BYPASS IS SEEN 5 AVOID NICKING RAILS FILTER 1 AND OIL CLEANLINESS CHECK PILOT FILTER EVERY 30 DAYS DURING OPERATION IF BUTTON STAY UP REPLACE FILTER ELEMENT 9 FOLLOW ALL SPECIFIED FILTER MAINTENANCE FOR THE HPS TAKE STRONG ANTI CONTAMINATION MEASURES WHEN OPENING HOSES OR VALVES KEEP THE TABLE GENERALLY FREE OF DUST AND DIRT ANTI CONTAMINATION MEASURES NEVER LAY HOSES ON FLOOR WITHOUT CLEAN CLOTH PLASTIC OR PAPER UNDER CONNECTORS OR USE METAL OR PLASTIC HOSE PLUGS C
10. E STRONG TABLE MOTION FOR 1 3 MINUTES 5 AN AUTOMATIC DUMP SYSTEM OPENS A VALVE ON SHUTDOWN THAT RELEASES THIS STORED ENERGY IN 10 30 SECONDS 5 THERE IS A MANUAL OVERRIDE TO THIS SYSTEM PILOT VALVE SYSTEM THE PILOT VALVE SYSTEM B PILOT ASSURES AN EARLY AND INDEPENDENT OIL SUPPLY TO THE PILOT VALVE CHECK VALVE 9 ACCUMULATOR 1000 PSI CHARGE PRESSURE 9 HAND DUMP VALVE 5 FILTER PRESSURE GAGES AND OPERATION VERIFICATION THE MAIN AND PILOT PRESSURE GAGES PROVIDE DETAILED SYSTEM OPERATING INFORMATION PUMP OPERATION SEQUENCE VALE PILOT ACCUMULATOR PRESSURE 9 MAIN ACCUMULATOR PRESSURE PRESSURE GAGE INFORMATION PSI PILOT MAIN 3000 2000 1000 0 02 5 100 120 321000 APPROXIMATE TIME SECONDS 0 SEC OPEN ISOLATION VALVES 2 SEC SEQUENCE VALVES OPEN 5 SEC PUMP REACHES PRESSURE OF HIGHER MAIN ACCUMULATOR 100 SEC SYSTEM REACHES OPERATION PRESSURE 100 SEC OPERATOR HUTS SYSTEM DOWN gt 1000 SEC SLOW PILOT BLEED DOWN UNLESS RELEASED MAIN ACCUMULATORS THERE ARE TWO 25 GALLON HIGH PRESSURE SIDE ACCUMULATORS CHARGED TO 1000 PSI THEY STORE ENERGY FOR TRANSIENT EVENTS THERE IS ONE 25 GALLON LOW PRESSURE SIDE ACCUMULATOR CHARGED TO 100 PSI IT ACCEPTS SURGE FLOW TO REDUCE BACK PRESSURE 9 ALL ACCUMULATORS HELP WITH LINE PULSATION CONTROL PILOT RETURN AND DRAINS ADDITION TO THE MAIN RETURN LINES THERE AR
11. E THE PILOT AND SEAL DRAIN RETURN LINES DO NOT INTERRUPT THE SEAL DRAIN LINES DOING SO WOULD BLOW OUT THE ACTUATOR AND 53 VALVE LOW PRESSURE SEALS AIR BAG USE THE AIR BAG ASSEMBLY IS USED BIAS THE ACTUATOR TO ALLOW NARROWER IMPULSE TESTING 5 WHEN NEEDED THE AIRBAG IS ATTACHED TO THE BASE FRAME AND TABLE END 5 DO NOT EXCEED 90 PSI RELIEF SET AT AT 125 PSI 5 NOTE SYSTEM IS RATED 330 POUNDS OF AXIAL FORCE PER PSI OF PRESSURE NOMINAL PRESSURE IS 90 PSI 13 5 TONS Module 4 DATA PHYSICS DIGITAL CONTROLLER PC AND ANCO SPECTRUM SOFTWARE DIGITAL CONTROL AND DATA ACQUISITION DELL PENTIUM 4 52 GHz 9 256 MB RAM CDRW FLOPPY MODEM 15 LCD MONITOR WINDOWS XP OPERATING SYSTEM 9 SIGNAL CALC SOFTWARE SPECTRUM COMPATIBLE SOFTWARE INPUT LIMITS ICP THE DRIVE VOLTAGE INPUTS TO THE DP ADC ARE MAXIMUM 10 VOLTS WHICH NOMINALLY MAP TO 16 BITS DYNAMIC SCALING IS POSSIBLE THE ADC HAVE AN AC DC OPTION ADC HAS ICP OPTION FOR PIEZOELECTRIC TRANSDUCERS SYSTEM SET UP SCREEN 5 SHAKER AND EQUALIZATION SCREEN IMPORT SCREEN CALIBRATION AND ADC SCREEN NOTES SCREEN RUN SCREEN SLIGHTLY DIFFERENT FOR EACH DRIVE SIGNAL TYPE EQUALIZATION AND SHAKER CONTROL SCREEN TOGGLE FOR SELF TEST OR LAST SELF TEST LEVELS AND VOLTAGE LIMITS DRIVE VOLTAGE LIMITS 5 SHAKER MAXIMUM X X X SHAKER LOWES
12. FTEN AN IDEALIZED COMBINED AND BROADENED ENVELOPE OF MANY ACTUAL SPECTRA THIS IS THE DESIRED SPECTRA FOR THE TEST TRS ACTUAL ACHIEVED SPECTRA WITH REALISTIC HASH HIGHER ZPA WHICH EXCEEDS THE RRS IN A SPECIFIED FREQUENCY BAND IMPULSIVE AND SHOCK MOST OFTEN DEFINED BY INDUSTRIAL OR MILITARY STANDARDS TYPICALLY SIMPLE IN SHAPE AND OF SHORT DURATION HALF SINE TRIANGLE TRAPEZOID ETC 5G 20 ms TIME Module 3 SERVO HYDRAULIC PUMP MANIFOLD ACTUATOR AND SERVO CONTROLLER PUMP OPERATION AND SPECIFICATIONS MTS MULTIPLE UNIT PUMP RATED 10X100 LPM AT 3 000 PSI 207 BAR MULTIPLE HYDRAULIC UNITS SERVICED 9 MANIFOLDS REACH TO NEAR R 149 AND PROVIDE A 3 BALL VALVE SHUTOFF TURNED ON IN DISTANT PUMP ROOM WARNING NTU SHOULD STRONGLY CONSIDER INSTALLING HIGH BAY FLASHING LIGHTS TO INDICATE PUMP ON PLUS SEVERAL E STOP BUTTONS HYDRAULIC PROPERTIES AND CLEANLINESS 5 NOT BIOLOGICALLY HAZARDOUS 5 FLASH POINT ABOUT 450 230 9 SLIP HAZARD HIGH TEMPERATURE AND PRESSURE 5 CAN BE DAMAGED BY EXCESSIVE HEAT ABOVE 160 F 70 C 5 OIL CONTAMINATION IS THE NUMBER ONE CAUSE OF VALVE FAILURE SEEK 3 MICRON FILTERING REPLACE WHEN INDICATED REPLENISH WITH GOOD QUALITY PUMP MANUFACTURER RECOMMENDED OIL DRIPS AND PANS THE ACTUATOR AND HOSE CONNECTIONS WILL EXPERIENCE SOME SLOW LEAKAGE A PERIODIC WIPE DOWN WITH A CLOTH SHOULD KEEP THIS UNDER CONTROL INVESTIGATE AND COR
13. LT IF THE ACTUATOR VELOCITY IS AT OR NEAR ZERO AND THEN MOTION IS REQUESTED ALSO GRUMBLING 400 Hz SINUSOIDAL DITHER SIGNAL IS ADDED TO THE COMMAND SIGNAL TO MINIMIZE THIS PROBLEM MORE DITHER IS NEEDED AS THE VALVES BECOME MORE CONTAMINATED A TYPICAL VALUE FOR DITHER 15 30 THE SERVO LOOP DISPLACEMENT VALVE SIGNAL ERROR DELTA P SERVO CONTROLLER ADJUSTMENT THE GS 2000 SERVO CONTROLLER FRONT PANEL HAS A TOP MIDDLE AND BOTTOM SECTION 5 THE TOP SECTION HAS A DIGITAL DISPLAY AND THE ABILITY TO SELECT THE VARIOUS PARAMETERS FOR DISPLAY THE MIDDLE SECTION ALLOWS SELECTION FOR ADJUSTMENTS OF THESE PARAMETERS THE BOTTOM SECTION HAS A ROTARY ENCODER THAT MAKES THE CHANGES THE GS 2000 IS A DIGITALLY SUPERVISED ANALOG SERVO CONTROLLER OTHER SERVO CONTROLLER PARAMETERS AND SPAN ati SET POINT ig UPPER LIMIT 9 LOWER LIMIT ERROR DETECT ZERO SC NOMENCLATURE FOR THE R 149 NOTE THE FOLLOWING MEANINGS OF NAMES 5 XD1 IS THE DELTA P SIGNAL 100 5000 PSI 5 XD2 IS THE LVDT ON 53 5 XD3 IS THE ACTUATOR DISPLACEMENT TRANSDUCER 100 9 INCHES OR 229 mm VALVE IS THE VALVE DRIVE SIGNAL 100 100 OPEN RESET IS THE DELTA P GAIN 5 PROGRAM IS THE COMMAND SIGNAL 10 V 100 9 INCHES 229 mm TUNING SIGNAL GENERATOR IN Rd DISPLACEMENT BY EYE OR O
14. MEANS THAT AN DISPLACEMENT oe OF 100 CAUSES THE VALVE TO OPEN 5 AGAIN OF 1 0 3 0 IS TYPICAL TOO MUCH GAIN CAUSES OVER SHOOT AND INSTABILITY 5 TOO LITTLE GAIN CAUSES A SOFT AND SLOPPY RESPONSE THE BEST GAIN DEPENDS ON TEST MASS AND DYNAMICS RATE FEEDS BACK VELOCITY PROPORTIONAL SIGNAL TO REDUCE OVERSHOOT VELOCITY 5 RATE ALLOWS STABILITY WITH HIGHER GAIN TOO MUCH RATE CAUSES AN UNWANTED HIGH FREQUENCY INSTABILITY A RATE VALUE OF 50 IS TYPICAL AND DEPENDS ON TEST MASS AND DYNAMIC COLUMN RESONANCE AND DELTA P VOLUME YEN Hz 2800 x AREA SQUARE INCHES SQRT WEIGHT 188 x TOTAL VOLUME CUBIC gt 16 Hz FOR R 149 WITH 10 TON MASS 9 OTHER FLEXIBILITIES HAVE AN EFFECT AREA BIAS OPERATION 5 BIASED MODE OPERATION INCREASES THE OIL COLUMN RESONANCE BY SHORTENING THE OIL COLUMN THIS ALLOWS FOR BETTER CONTROL OF NARROW IMPULSES FORGE AND ACCELERATION CAPACITY IS AIR BAG 1 DELTA P INTRODUCES ELECTRONIC DAMPING 5 WITH DELTA P OIL COLUMN RESONANCE HAS NO DELTA P LITTLE DAMPING AND WILL PRODUCE HIGH AMPLITUDE OSCILLATIONS AT wirH DELTA P OIL COLUMN FREQUENCY WITH DELTA P THE RESONANCE STILL EXISTS BUT IS HIGHLY DAMPED AND CAN BE CONTROLLED 9 THE STATIC FRICTION OF VALVE SPOOLS ACTUATOR SEALS AND TABLE BEARINGS IS GREATER THAN THE DYNAMIC FRICTION THIS CAUSES A STICKING AND JO
15. NIA 5 VALVES SINGAPORE NEW YORK DELL SINGAPORE Systems Installation e Training Maintenance Service ANCO Engineers Inc We talk shake tables We look forward to being of assistance Module 2 DIGITAL DATA ACQUISITION ANALYSIS AND CONTROL DIGITAL N Y SAMPLING RATE S SEC QUANTIZATION BITS DYNAMIC RANGE SLEW DAC DIGITAL TO ANALOG CONVERTER r l SAMPLING RATE 5 5 QUANTIZATION BITS DYNAMIC RANGE SLEW ALIASING ALIAS AN ALTERNATE NAME OR IDENTITY WHEN SANPLED AT 2 0 CYCLE SEC A 1 1 AND 0 9 HZ SINE WAVE YIELDS IDENTICAL DATA NYQUIST FREQUENCY 1 2 SAMPLING RATE SHANNON SAMPLING THEOREM A MINIMUM FILTERS 5 FILTERS ARE USED FOR ANTI ALIASING AND DATA CLARIFICATION USE FILTERS CAREFULLY DUE TO AMPLITUDE PHASE AND ENERGY CONTENT DISTORTION 9 FILTER TYPE BUTTERWORTH BESSEL ELLIPTICAL CHEBYSHEV GAUSSIAN ETC LOW PASS HIGH PASS BAND PASS NOTCH FILTERS FILTER TERMINOLOGY CUT OFF ROLL OFF PHASE DELAY kawsas at 1Hz Normalized at 1Hz Passband and Time Delay FOURIER TRANSFORM X He Prat N DFT 2 GA 2 N OPERATIONS INVERSE TRANSFORM THE INVERSE FOURIER TRANSFORM EXISTS AND ALLOW CONVERSION OF A FREQUENCY DOMAIN FUNCTION INTO THE TIME D
16. OMAIN HENCE FREQUENCY DOMAIN MANIPULATIONS CAN BE USED TO EFFECT THE TIME DOMAIN E G FILTERING INTEGRATION TRANSFER FUNCTIONS AND DISCOVERED CLOSELY RELATED TRANSFORM CALLED THE Z TRANSFORM THAT IS SIMILAR TO THE FOURIER TRANSFORM BUT OPERATES ON DIGITIZED TRACES THEIR ALGORITHM EVALUATES THE FOURIER TRANSFORM IN N LOG N STEPS AND HENCE IS CALLED THE FAST FOURIER TRANSFORM FFT TRANSFER FUNCTION LINEAR SYSTEM HAS A FREQUENCY DEPENDENT TRANSFER FUNCTION H RELATING ITS RESPONSE Y TO ITS INPUT X HUX H X WINDOWS 5 THE Z TRANSFORM AND ON FINITE TIME SERIES WRAPPED ONTO ITSELF FINAL TIME POINT FOLLOWED BY FIRST TIME POINT 5 TO AVOID A DISCONTINUITY AND THE INTRODUCTION OF FALSE ENERGY AT THIS MEETING OF FIRST AND LAST POINT THE TIME HISTORY IS TAPERED BY A WINDOW 5 DIFFERENT WINDOWS AFFECT AMPLITUDES AND PEAK WIDTHS IN DIFFERENT WAYS poxom RANDOM PSD A RANDON TIME HISTORY HAS 9 SIMILARITY OVER TIME STATIONARITY DIFFERENT ENERGY AT DIFFERENT FREQUENCIES GIVEN BY THE POWER SPECTRAL DENSITY PSD WITH UNITS SUCH AS G SQUARED Hz GxG Hz G FREQ PSD COMPUTATION THE PSD CAN BE ESTIMATED BY THE FOLLOWING STEPS BREAK THE TIME HISTORY INTO SEGMENTS MULTIPLY BV A WINDOW TAKE THE FFT AND SQUARE IT AVERAGE THE VARIOUS SQUARED FFT S
17. OVER ANY OPEN PORTS WITH CLEAN CLOTH PLASTIC OR PAPER DO NOT EAT OR SMOKE WHILE SERVICING OPEN PORTS 9 CLEAN HANDS WELL BEFORE SERVICING ANY CONTAMINATED DO NEW OIL IS DIRTY YOU CAN NOT SEE 10 MICRON DIRT ACTUATOR CARE AVOID ANY NICKING OR CONTAMINATION OF THE PISTON ROD AVOID IMPACTS TO THE VALVES OR DISPLACEMENT TRANSDUCER IF MOVED THE ACTUATOR MUST RE ALIGNED WITH THE TABLE THE DIFFERENTIAL RUN OUT MUST BE LESS THAN 0 3 Mm OVER THE 200 mm TRAVEL 9 BOLT THE FLEX AT MID STROKE SO AS TO MINIMIZE BINDING THE PISTON BOLT TIGHTNESS 9 INSPECT AND RETIGHTEN ALL BOLTS AND NUTS TO THE RECOMMENDED TORQUE PERIODICALLY SEE MANUAL OR CHARTS PROPER TORQUE IS ESSENTIAL LOCK WASHERS AND THREAD LOCKER ARE NOT RECOMMENDED NOMINAL BOLT TORQUES BOLT DIA mm T 6 10 8 25 10 50 12 90 14 150 16 220 18 310 20 410 22 550 24 730 26 930 28 1150 ANCHORAGE INSPECTION 9 EVERY 6 MONTHS OR AFTER VERY HIGH LEVEL TESTING CHECK THE TORQUE ON THE 23 SUPER NUTS BELOW THE LABORATORY FLOOR THE 12 STUDS PER SUPER NUT SHOULD HAVE A MINIMUM TORQUE OF 35 FT LB WHEN TIGHTENED IN A STAR PATTERN 9 REQUIRES 5 16 SOCKET HOSE TIGHTNESS AND TYPES THE SYSTEM HAS NUMEROUS JIC 37 DEGREE FITTINGS IN CABLE SIZES FROM 4 TO 20 E G A 20 IS 20 16 1 25 32 mm INSIDE DIAMETER THERE ARE SOME PIPE THREADS AND SAE O RING CONNECTORS TORQUE
18. PPROXIMATELY 40 TONS COUNTER FORCE AT 220 MM THE STEEL HARD STOPS ENGAGE 5 AVOID IMPACTING THE SOFT STOPS 9 CAUTION PINCH POINT CRANE USE USE ADEQUATE SLINGS AND LIFTING HARDWARE 9 RIG CORRECTLY E G WATCH TRANSVERSE LOADS ON EYE BOLTS TAKE NOTE OF CRANE CAPACITY LIMITS MOVE SLOWLY MAINTAIN EXCLUSION AREA 9 HAVE ONE OPERATOR IN COMMAND DO NOT ALLOW MORE THAN ONE PERSON FEEDING INFORMATION TO THE OPERATOR STRUCTURAL MARGIN ANALYSIS 5 THE SYSTEM IS DESIGNED TO OPERATE AT 33 OF PEAK FORCES WITH MATERIAL STRESS UNDER THE ENDURANCE LIMIT THE DESIGN PROVIDES FOR 100 NORMAL FORCES UNDER THE ALLOWED MATERIAL WORKING STRESSES UNDER AN ACCIDENT SCENARIO FULL HARD STOP IMPACT THE LOADS ARE ABOUT 300 OF THE NORMAL FORCES MATERIAL STRESSES ARE UNDER THE ULTIMATE 9 HENCE MINIMIZE FULL FORCE OPERATION AVOID ACCIDENT FORCES SAFETY IMPROPER TABLE USE CAUSE COSTLY EQUIPMENT FAILURE 5 OVER DRIVING AND HARD STOP IMPACT CAN FAIL ACTUATOR FLEX OR BEARINGS 5 CONTAMINATION FAIL VALVES FILTERS AND PUMPS 9 EXCEEDING 10 VOLT SIGNAL AMPLITUDE CAN FAIL ELECTRONICS MAINTENANCE 9 VALVE CLEANING 9 ACCUMULATOR CHARGING CHECKS BEARINGS GREASING CHECKS 9 FILTERS AND OIL CLEANLINESS ACTUATOR CARE CHECKS 9 ACTUATOR ALIGNMENT MAINTENANCE CONTINUED 7 BOLT AND CABLE TIGHTNESS ANCHORAGE INSPECTION 9 FLEX AND TABLE TOP CAR
19. RECT ANY LEAKAGE IN EXCESS OF THIS IMMEDIATELY E G LOOSE HOSE FITTING THERE ARE DRIP PANS TO EITHER SIDE OF THE ACTUATOR TO HELP CONTAIN ANY LEAK ACTUATOR DELTA P DISPLACEMENT SIGN CONVENTION HIGH PERFORMANCE HYDRAULIC ACTUATORS WERE DEVELOPED FIRST FOR TENSILE TESTING MACHINES HENCE SHORTENING OF THE ACTUATOR WHICH CAUSES SAMPLE TENSION IS CONSIDERED POSITIVE THIS IS CONFUSING FOR SHAKE TABLE BUT THE SAME CONVENTION HOLDS HYDRAULIC SERVO VALVE ATOB DIRECTION nooo DIRECTION 3 STAGE MECH LINK TO COMPLETE S2 SERVO LOOP LVDT TO COMPLETE S3 VALVE SERVO LOOP 27 52 PILOT VALVE 5 GPM S3 MAIN VALVE 200 GPM S3 SERVO FREQUENCY RESPONSE 200 GPM 100 GPM 12 db 50 GPM 1 0 10 0 100 1000 FREQUENCY Hz MAGNETOSTRICTIVE DISPLACEMENT SENSOR BALUFF 10 000 PULSES SEC REFLECTED PULSE RING MAGNET DISPLACEMENT X t WHAT IS LVDT 9 ALINEAR VARIABLE DIFFERENTIAL TRANSFORMER LVDT SENSES DISPLACEMENT BY NOTING THE CHANGE IN INDUCTANCE OF A COIL AS A METALLIC ROD IS PASSED THROUGH IT LVDT S WERE OFTEN USED IN ACTUATORS BUT LONG ONES HAVE INTERNAL WEAR AS THE ROD SCRAPES THE COIL TUBE HENCE MAGNETOSTRICTIVE DEVICES ARE NOW PREFERRED AND SUPER COLLAR SERVO CONTROLLER DISPLACEMENT VALVE SIGNAL 5 A GAIN OF 1 0
20. SCILLOSCOPE GOAL ADJUST LOOP PARAMETERS TO GET A CRISP A SQUARE WAVE AS POSSIBLE TABLE HYDRAULIC MANIFOLD CHECK VALVE PILOT 3MICRON FILTER 2 GAL PILOT ACCUMULATOR CHARGED TO 1 000 PSI 2X25 GAL HIGH PRESSURE ACCUMULATORS CHARGED TO 1 000 PSI PILOT RETURN AND HAND MAIN LINE 25 GAL LOW DUMP PRESSURE ACCUMULATORS SEAL RETURN CHARGED TO 100 PSI 4 ACCUMULATORS NITROGEN CHARGE VALVE PISTON BLADDER OR DIAPHRAM CAN BE USED INSTEAD OF PISTON ACCUMULATORS ARE USED FOR ENERGY STORAGE PEAK FLOW HIGH FREQUENCY RESPONSE AND PULSATION CONTROL ISOLATION VALVES THE TWO AIR OPERATED ISOLATION VALVES ARE NORMALLY CLOSED AND ARE OPENED ONLY BY THE START COMMAND IN THE CONTROL ROOM THEY SERVE ISOLATE R 149 FROM THE OTHER HYDRAULIC SYSTEMS AND PUMP IN THE LABORATORY SEQUENCE 5 CONTROL THE PILOT 52 VALVE MUST PRESSURIZED THE MAIN S3 VALVE PILOT THE KICK DOWN SEQUENCE MAIN VALVES DO NOT ALLOW FLOW TO THE MAIN VALVE UNTIL THE APPLIED PRESSURE EXCEEDS EF 1000 PSI THEN OPEN KICK DOWN AND ALLOW FLOW THEY DO NOT CLOSE UNTIL THE APPLIED PRESSURE FALLS TO THE REFERENCE ATMOSPHERIC PRESSURE PRESSURE DUMP SYSTEM 5 EVEN ON ISOLATION AND OR PUMP STOP THERE IS LARGE AMOUNT OF STORED ENERGY IN THE ACCUMULATORS SUFFICIENT TO CONTINU
21. T FREQUENCY COMPENSATION FREQUENCY 5 FILTER RESPONSE SPECTRA SET UP 5 ALARMS TYPE OF CONTROL IMPORT SCREEN DEFINE DRIVE SIGNAL 9 TRANSIENT IMPULSE SINE OR RANDOM 9 E G IMPORT ASCII EARTHQUAKE TIME HISTORY 9 FLEXIBLE FORMAT CALIBRATION SCREEN e TRANSDUCER SENSITIVITY CONTROL CHANNEL S SELECTION LOCATION AC DC ICP SCALE FACTOR NOTES SCREEN 9 TEST TEST DATE OPERATOR NAME 9 TEST OBJECT NAME 9 COMMENTARY RUN SCHEDULER SCREEN 9 LEVEL OF TESTS NUMBER OF REPEATS DURATION 9 FREQUENCY BLOCK CYCLING EQUALIZATION THEORY 5 1 DESIRED TABLE ACCELERATION DP DRIVES TABLE WITH A1 OR REDUCED VALUE OF 1 T1 ACTUAL TABLE ACCELERATION 9 COMPUTE 1 T1 A1 THE TRANSFER FUNCTION OF THE TABLE LET A2 A1 H1 DRIVE THE TABLE WITH A2 RESULT IS H1xA2 H1xA1 H1 A1 APPROXIMATELY ITERATE TO HANDLE NONLINEARITIES AND IMPROVE THE FIT DISPLACEMENT VERSUS ACCELERATION FEEDBACK THE 65 SERVO CONTROLLER REQUIRES DISPLACEMENT COMMAND THE DP DIGITAL CONTROLLER USES AN ACCELERATION COMMAND THIS DIFFERENCE IN EXPECTATION IS ADJUSTED FOR IN THE EQUALIZATION PROCESS I E THE DRIVE SPECTRA IS DIVIDED BY fA2 THIS REQUIRES THE SELF TEST TO START AT A LOW LEVEL E G 30 db TO AVOID OVERDRIVING THE TABLE DATA DISPLAY AND EXPORT TIME DATA AND PROCESSED DATA SUCH AS INTEGRATED VALUES
22. TRANSFER FUNCTIONS RESPONSE SPECTRA AND COMMAND VALUES CAN BE PLOTTED IN VARIOUS FORMATS OR EXPORTED IN ASCII FORMAT WIRE TEST THIS TEST ELIMINATES THE SHAKE TABLE AND IS VERY USEFUL FOR a TRAINING AND DP TROUBLE SHOOTING 5 THE DAC OUTPUT DRIVE SIGNAL IS CONNECTED DIRECTLY TO THE ADC INPUT FEEDBACK SIGNAL SPECTRUM COMPATIBLE EARTHQUAKES THE METHOD OF GASPARINI AND VANMARK IS USED TO CREATE A SPECTRUM COMPATIBLE TIME HISTORY THIS IS NOT A UNIQUE PROCESS AS DIFFERENT TIME HISTORIES CAN HAVE THE SAME RESPONSE SPECTRA THE PROCESS INVOLVES ITERATIONS WITH THE RESPONSE SPECTRA AND FOURIER TRANSFORM OF THE TIME HISTORY WHICH STARTS AS A WHITE NOISE RANDOM SEQUENCE SPECTRUM EARTHQUAKE CONTINUED RRS DTHRS FREQ FREQ ACCELEROMETERS CABLES AND BLOCKS 5 THE R 149 COMES EQUIPPED WITH 3 DYTRAN MODEL 31870 PIEZOELECTRIC ACCELEROMETERS 500 MV G NOMINAL CALIBRATION 9 12 CHANNEL DYTRAN AMPLIFIER OR DP ICP OPTION IS AVAILABLE 5 THE ACCELEROMETERS HAVE AN OPERATING FREQUENCY FROM 0 5 Hz TO OVER 1000 Hz 9 THERE IS 2 m SHORT CABLE AND 70 m LONG CABLE BNC FOR EACH ACCELEROMETER THEY ARE MARKED A2 AND 5 ALUMINUM MOUNTING BLOCK 9 THEY ARE USEFUL FOR TABLE FEEDBACK AND STRUCTURAL RESPONSE MONITORING 5 AVOID DROPPING OR SHOCKING THEM 5 PERIODICALLY RECALIBRATE THEM Module 5 SYSTEM
23. TYPICAL SAMPLE TRAINING MATERIAL Edited R 149 SHAKE TABLE TRAINING ANCO Engineers Inc 1965 33 Street Boulder CO 80301 USA Tel 1 303 443 7580 Fax 1 303 443 8034 anco ancoengineers com www ancoengineers com TRAINING MODULES M1 SYSTEM OVERVIEW MON 9 30 11 30 M2 DIGITAL DATA ACQUISITION ANALYSIS AND CONTROL MON 2 30 4 30 M3 SERVO HYDRAULIC PUMP MANIFOLD ACTUATOR AND SERVO CONTROLLER TUE 9 30 11 30 M4 DATA PHYSICS DIGITAL CONTROLLER PC AND SPECTRUM SOFTWARE TUE 2 30 4 30 M5 SYSTEM SAFETY AND MAINTENANCE WED 9 30 11 30 6 7 TYPICAL TESTING PROCEDURES AND HANDS ON TABLE USE WED 2 30 11 30 AND THU 9 30 11 30 M8 REVIEW AND SELECTED REQUESTED TOPICS THU 2 30 4 30 Module 1 SYSTEM OVERVIEW TABLE SPECIFICATIONS 9 1 AXIS HORIZONTAL SHAKE TABLE 5 30 SERVO HYDRAULIC ACTUATOR 3 M X3 M STEEL TABLE 10 TON MAXIMUM NOMINAL PAYLOAD 1 3 MAXIMUM ACCELERATION WITH 10 TON PAYLOAD 40 BARE TABLE ACCELERATION 0 8 M S MAXIMUM VELOCITY 9 200 mm MAXIMUM DYNAMIC DISPLACEMENT TABLE SPECIFICATIONS CONTINUED FREQUENCY RANGE 0 50 TO OVER 100 HZ ANALOG REAL TIME DISPLACEMENT CONTROLLER 5 DIGITAL ITERATIVE ACCELERATION CONTROLLER 5 SINE RANDOM IMPULSE ARBITRARY WAVEFORM RELOCATABLE ON THE NTU STRONG FLOOR TABLE MOTION CAPACITY 100 5 RESPONSE SPECTRUM ACHIEVABLE 10 1 0 PEAK MOTION CAPACITY OF TA

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