Long taim bilong hariap divelopmen bilong moden win pawa indastri, moa yet ol hai-pawa onshore na offshore win tabin, vaibresen i kamap wanpela bikpela samting we i save afektim sefti bilong win tabin, laipspan, pawa jeneresen, na operesen na mentenens kos. Taim 'wind turbine hub' i wok long go antap, longpela bilong ol 'blade' i wok long go longpela, na 'single-unit capacity' i wok long gro, ol hevi olsem win i guria, 'tower resonance', 'blade swawing', 'transmission chain vibration', na 'foundation vibration' we ol 'wind turbine' i save bungim taim ol i wok i wok long kamap bikpela.
Orait, bilong wanem wanpela 'vibration damper' i mas stap long wok bilong win pawa? Ol strongpela win, ol bikpela win, ol 'shear winds', na 'tower shadow effect' i save mekim ol 'blade' i save kisim senis long 'thrust', na dispela i save mekim ol 'blade' i save pairap na i save guria, na dispela i save go long 'hub', 'main shaft', 'gearbox', na 'tower', na dispela i save mekim ol 'blade' i save seksek oltaim. Impela hevi bilong 'impeller', 'main shaft' i no stret, 'bearing wear', na 'gearbox gear meshing impacts' olgeta i save kamapim ol 'high-frequency vibrations, we em ol bikpela as bilong ol 'transmission chain failures'. Dispela taua em i wanpela liklik, fleksibel straksa wantaim liklik namba wan-naturela frikwensi, na dispela i mekim em i isi long resonans wantaim 'impeller rotation frequency' na 'blade passage frequency'. Taim 'resonance' i kamap, 'vibration amplitude' i go bikpela tru, na dispela i save bagarapim sefti bilong straksa.
Wanem ol hevi we 'vibration' i save kamapim long ol 'wind turbine'? Aninit long 'continuous vibration', 'fatigue life' bilong ol 'gearboxes', 'bearing's, 'main shafts', na 'yaw systems' i sot tru, na 'failure rate' i go antap tru. Pasin bilong seksek inap long mekim ol 'tower flange bolts' na 'main frame bolts' i lus, na long ol bikpela hevi, ol 'fatigue cracks' inap kamap long ol 'welds'. Sapos yu winim mak bilong 'vibration' dispela bai kirapim 'main control system' long daunim hevi bilong en, daunim spit bilong en, na lukautim 'shutdown', na dispela bai daunim taim na autput bilong kamapim pawa. Ol hevi we i save kamap long 'vibration- i save kamapim moa long 50% bilong olgeta win tabin we i save bagarap, na ol bikpela - mentenens na ofso operesen na mentenens kos i antap tru. Longpela taim 'resonans' o bikpela guria inap long kamapim 'blade' i bruk, 'tower' i bagarap, faundesen i bagarap, na tu ol bikpela sefti eksiden.
Dispela atikol i kamapim wok bilong ol 'vibration dampers' long ol 'wind turbine blades'. Ol 'blade' em ol samting we i save seksek strong tru, na ol i save soim 'flapping', 'oscillation', 'flutter', na 'icing-induced unbalanced vibration. Ol 'internally tuned mass dampers', we ol i putim long 20%-40% bilong longpela bilong 'blade', i yusim wanpela 'mass block', ol spring, na 'damping structure' long 'tune' wantaim 'vibration frequency' bilong 'blade', na ol i save daunim gut namba wan- na namba tu-oda 'oscillations' na 'flapping vibrations', na daunim 'fague' taim 'blade' i go longwe, na i go longpela laip.
Taim ol i yusim ol 'vibration damper' dispela i save daunim 'blade vibration amplitude' long 30%-60%, daunim bagarap bilong 'blade fatigue' long moa long 40%, daunim hevi bilong 'blade' i bruk na bruk, na daunim hevi bilong 'icing vibration'.
Win pawa indastri i save yusim ol kain kain 'vibration dampers' na wok prinsipel bilong en. Kain we planti manmeri i save yusim em 'tuned mass damper', we i gat wanpela 'mass block', wanpela 'spring', na wanpela 'damper'. Ol i stretim 'frequency' i go long bikpela 'vibration frequency' bilong 'wind turbine'. Taim 'vibration' i kamap, 'mass block' i save muv i go long narapela sait long kisim pawa. Em i gat gutpela straksa, gutpela wok, na inap long yusim long planti hap.
Ol win tabin long solwara i save wok long ol ples we i hat moa long ol tabin long solwara. Olsem na, 'vibration damper' i mas inapim ol bikpela 'corrosion resistance' rikwaemen, olsem hot-dip galvanising, 316L steinles stiel, Dacromet koting, sol sprei tes long moa long 1000 aua, na stebol operesen long ol tempereja we i stat long -40 digri i go inap 80 digri. Ol kos bilong lukautim ol samting long solwara i antap tru, na dispela i mekim na ol i mas wokim wanpela disain we i stap longpela taim. Ol i mas wokim dispela 'hydraulic damper' tu long stopim oil long lik we inap long bagarapim solwara.
Wanem ol gutpela samting ol win fam i ken kisim sapos ol i yusim 'Vibration Damper'?
Pawa jeneresen i go antap, 'vibration' i go daun-i mekim na pawa i sot na i no wok gut, wok gut long ol hap we win i no strong tumas, na pawa jeneresen i go antap long 2%-8%; longpela taim bilong ol bikpela samting, wantaim laip bilong 'blade' i go antap long 20%-40%, laip bilong giaboks i go antap long 30%-50%, na bagarap bilong taia i go daun long 30%-60%; i daunim tru ol kos bilong operesen na mentenens, i no gat planti wok bilong lukautim ol ples antap, i no gat planti senis long ol giaboks na bearing, na i sevim planti tausen i go inap planti tausen dola bilong Amerika long wan wan win tabin long solwara long wan wan yia; i mekim gut sefti bilong ol 'turbine', abrusim ol 'resonance', helpim ol manmeri long stap laip aninit long ol taifun, guria, na ol weiv, na daunim hevi bilong ol 'bolt' i lus na ol 'structural cracking'; daunim nois, wantaim daunim nois bilong 'aerodynamic' na 'structural', inapim ol samting bilong lukautim envairomen na helpim wok bilong tok orait long projek.
