Hau long Grindim Rel Trek: Wanpela Komplite Gaid bilong Rel Grinding Kain, Prinsipel, na Saiens
 

Ril grinding em i wanpela bilong ol bikpela wok mentenens long ol sistem bilong tren bilong nau. Em i mekim na ol tren operesen i stap gut, i gutpela, na i wok gut long rot bilong lukautim gut ol jiometrik na pes integriti bilong ol rel-}espeseli long hai-trafik o hai-speed lain. Tasol i no olgeta samting bilong grisim i wankain. I dipen long kondisen mo stamba tingting blong rel, ol enjinia oli aplaem ol difren strateji:pre-}grinding, pasin bilong pasim kaikai, na grisim samting bilong stretim. Long dispela atikol, mipela bai tok klia long wanem samting stret wan wan kain i involvim, ol as tingting i stiaim rel grinding, na saiens i stap baksait long as bilong en em i wok. Blong kasem moa abaot ol profesenol tul, luk long .Masin bilong Grinding bilong Rel.
 

Hap 1: Ol kain mak bilong Grinding bilong Rel
 

Ol i putim bikpela mak long rel i go long tupela eria-ol meinlain relnaol rel bilong tanim (swit)-na i bruk i go moa long tripela kain wok bihainim taim na as tingting.

1. Pre-} Grenim
 

Pre-}grinding i kamapbihain tasol long ol i putim ol nupela rel.tasol pastaim long tren sevis oltaim i stat.

As tingting:

• Rausim leit karburisim leit antap long rel pes.
• Rausim ol samting i no stret long pes bilong yu long prodaksen, weldim, trenspot, o putim trek.
• Stretim het profail bilong rel long makim ol spesifikasen bilong disain.
• Impruvum gud joen blong joen.
   

2. Grinding blong Preventiv
 

Pasin bilong pasim kaikai bilong pasim man em i wanpelasediul, wok mentenens wok long wanwan taimaplai long ol rel i stap yet long gutpela kondisen tasol soim ol mak bilong wear pastaim.

As tingting:

• Givim bek gutpela het profail.
• Rausim maikro{0}}rak na ol samting i no daun tumas.
• Optimisim wil–rel kontek rilesensip.
• Preventim roling kontek les (RCF), korugesen, o rel het difomesen.

Bilong kisim moa save long sait bilong teknikel:Wikipedia – Rel Grinding, Tulboks bilong Enjiniaring – Rolim Kontek Fatigue.
 

3. Korektiv (Remial) Grinding
 

Ol i yusim stretpela grindingbihain long bagarap i kamap pinistaim ol rel i soim ol samting i no stret o ol inap skelim.

As tingting:

• Re-profail het bilong tren.
• Mitigate damej: rolem ol krek blong taed, wev wear, skrasem skrasem.
   

Pat 2: Ol stampa Prinsipol blong Rel Grinding
 

1. daunim wok bilong rausim ol samtingtaim yu winim mak bilong rel.
2. Givim preoritisim preventiv grinding long stretimbilong mekim wok gut.
3. Bihainim pasin bilong grisimi stanap long trafik, spid, mo rel kondisen.

Kisim save moa:Direk bilong Saiens – Rel Bilong Rel na Kontektim Mekaniks.
 

Hap 3: Saiens Bihain long Rel Grinding

1. Wil–Rel Kontek Jiometri
 

Ol tren i save dipen long stretpela wil–rel jiometri. Ol wil i senis long sait na yaw, na dispela i bagarapimol kontek poin.

• Ol stretpela trek: liklik wankain konisiti i mekim gutpela samting i kamap gutpela moa.
• Ol samting i kamap: bikpela konisiti i larim gutpela tanim.

LukimRel Gaset – Infrastraksabilong ol kes stadi.
 

Fig.1: 9 mm kliarens namel long wil flange na rel insait pes.

Fig.2: Lateral displacement na yaw bilong ol wilset.
 

2. Stres bilong Kontekt bilong Wil–Rail
 

Vertikal lod i kamapim wanpela eliptikkontektim pat(Tok bilong Hertzian).

• Bikpela hap → stres i go daun → les isi isi.
• Liklik/i no wankain → bikpela stres → krek/spalling.

Kisim save moa:Wikipedia – Hertzian Kontek Stres.
 

Fig.3: Hertzian kontek pat aninit long wil lod.
 

3. Krip na Wear Mekanisme
 

Ol tren wil ekspiriensmaikro-slip(kripim) long kontek intafes.

• Adhesion zone: pure roling.
• Slip zone: maikro-}sliding i save mekim ol i werim.

Minisim slip zon i daunim wear. Kisim save moa:SaiensDirekt – Krip long Enjiniaring Materiel.
 

Fig.4: Adhesen (roling) vs slip (sliding) zon.
 

Konklusen: Stret Grinding=Smatpela Rel.
 

Ol impak blong relsefti, gutpela wok, nois, gutpela sindaun bilong ron, na kos bilong laipsaiklo.. Iusum pre-}, fasin blong blokem, mo stretem fasin blong stretem ol samting i mekem se i gat ol gudfala, longfala blong ol trak we oli stap longtaem moa.

Lukluk long nauol rot bilong grisim relbilong lukautim gut moa.