Magawo ambiri azida zatsopano zochepetsera mphamvundizida zamagalimotopulojekitiyi imafuna kuwomberedwa pambuyo pogaya zida, zomwe zingawononge khalidwe la dzino, komanso zimakhudza momwe NVH imagwirira ntchito. Pepalali limaphunzira za kuwuka kwa dzino pamitundu yosiyanasiyana yowombera ndi magawo osiyanasiyana isanayambe kapena itatha kuwomberedwa. Zotsatira zimasonyeza kuti kuwomberedwa peening adzawonjezera dzino padziko ukakali, amene amakhudzidwa ndi makhalidwe a mbali, kuwombera peening ndondomeko magawo ndi zinthu zina; Pansi pa zomwe zilipo batch kupanga ndondomeko, pazipita dzino pamwamba akhakula pambuyo kuwomberedwa peening ndi 3.1 nthawi asanawombedwe peening. Chikoka cha kuuma kwa dzino pakuchita kwa NVH chikukambidwa, ndipo njira zowongolera roughness pambuyo pa kuwomberedwa ndikuwunikidwa.

Pansi pa zomwe zili pamwambapa, pepalali likufotokoza mbali zitatu izi:

Chikoka cha kuwombera peening ndondomeko magawo pa dzino pamwamba kuwuka;

The amplification digiri ya kuwombera peening pa dzino pamwamba roughness pansi pa zinthu alipo mtanda kupanga ndondomeko;

Zotsatira za kuchuluka kwa kuuma kwa dzino pakugwira ntchito kwa NVH ndi njira zochepetsera kuuma pambuyo pa kuwomba.

Kuwombera kumatanthawuza momwe ma projectile angapo ang'onoang'ono okhala ndi kuuma kwambiri komanso kuthamanga kwambiri kugunda pamwamba pazigawo. Pansi pa mphamvu yothamanga kwambiri ya projectile, pamwamba pa gawolo lidzatulutsa maenje ndi kusinthika kwa pulasitiki kudzachitika. Mabungwe ozungulira maenjewo amakana kusinthika uku ndikupanga kupsinjika kotsalira. Kuphatikizika kwa maenje ambiri kumapanga yunifolomu yotsalira yoponderezedwa yotsalira pamwamba pa gawolo, motero kumapangitsanso kutopa kwa gawolo. Malinga ndi njira yopezera liwiro lalikulu powombera, kuwomberedwa kowombera kumagawika m'malo oponderezedwa akuwombera mpweya ndi kuwomba kwapakati, monga momwe zikusonyezedwera pa Chithunzi 1.

Wopanikizika mpweya kuwombera peening kumatenga wothinikizidwa mpweya monga mphamvu kupopera kuwombera mfuti; Kuwombera kwapakati pa centrifugal kumagwiritsa ntchito injini kuyendetsa choyikapo kuti chizungulire pa liwiro lalikulu kuponya kuwomberako. The kiyi ndondomeko magawo a kuwombera peening monga machulukitsidwe mphamvu, kuphimba ndi kuwombera peening sing'anga katundu (zinthu, kukula, mawonekedwe, kuuma). Machulukitsidwe mphamvu ndi chizindikiro chosonyeza kuwombera mphamvu peening, amene amasonyezedwa ndi arc kutalika (ie mapindikidwe digiri ya Almen mayeso chidutswa pambuyo kuwombera peening); Mlingo wa Kuphimba amatanthauza chiŵerengero cha malo ophimbidwa ndi dzenje pambuyo powombera ndikuyang'anitsitsa kudera lonse la kuwomberako; Ambiri ntchito kuwombera peening TV monga zitsulo waya kudula kuwombera, kuwombera zitsulo, ceramic kuwombera galasi, ndi zina zotero. Zomwe zimafunikira pakupatsira zida za shaft zikuwonetsedwa mu Gulu 1.

Gawo loyeserera ndi giya yapakatikati ya shaft 1/6 ya projekiti yosakanizidwa. Mapangidwe a zida akuwonetsedwa mu Chithunzi 2. Pambuyo pogaya, mawonekedwe a mano a mano ndi Giredi 2, kuuma kwapamtunda ndi 710HV30, ndipo kuzama kolimba kolimba ndi 0.65mm, zonse mkati mwazofunikira zaukadaulo. Kukula kwa dzino pamaso pa kuwombera kumasonyezedwa mu Table 3, ndipo kulondola kwa mbiri ya dzino kumasonyezedwa mu Table 4. Zitha kuwoneka kuti kuuma kwa dzino pamaso pa kuwombera ndikwabwino, ndipo mawonekedwe a dzino ndi osalala.

Mayeso a pulani ndi magawo a mayeso

Makina oponderezedwa owombera mpweya amagwiritsidwa ntchito poyesa. Chifukwa cha miyeso yoyeserera, ndizosatheka kutsimikizira momwe kuwomberako kumapangidwira (zinthu, kukula, kuuma). Choncho, katundu kuwombera peening sing'anga ndi zonse mu mayeso. Only zotsatira machulukitsidwe mphamvu ndi Kuphunzira pa dzino pamwamba roughness pambuyo kuwomberedwa peening zimatsimikiziridwa. Onani Table 2 ya mayeso a mayeso. The yeniyeni kutsimikiza ndondomeko magawo mayeso ndi motere: kujambula machulukitsidwe pamapindikira (Chithunzi 3) kudzera Almen kuponi mayeso kudziwa machulukitsidwe mfundo, kuti logwirana wothinikizidwa mpweya kuthamanga, kuwombera zitsulo otaya, nozzle kusuntha liwiro, nozzle mtunda kuchokera mbali ndi magawo zida zina.

zotsatira za mayeso

Dzino pamwamba makulidwe deta pambuyo kuwombera peening zikusonyezedwa mu Table 3, ndi dzino mbiri yolondola chikuonetseratu mu Table 4. Tingaone kuti pansi pa kuwombera anayi peening mikhalidwe, dzino pamwamba makulidwe ukuwonjezeka ndi dzino mbiri pamapindikira amakhala concave ndi otukukira pansi pambuyo kuwombera peening. Chiŵerengero cha roughness pambuyo kupopera mbewu mankhwalawa ndi roughness pamaso kupopera ntchito kusonyeza roughness magnification (Table 3). Tingaone kuti roughness makulitsidwe ndi osiyana pansi zinthu zinayi ndondomeko.

Kutsata Mtsinje Wa Kukulitsidwa Kwa Mano Pamwamba Pakukalipa mwa Kuwomberedwa

Zotsatira zoyeserera zomwe zili mu Gawo 3 zikuwonetsa kuti kuuma kwa dzino kumawonjezeka mosiyanasiyana pambuyo pa kuwomba ndi njira zosiyanasiyana. Kuti timvetse bwino matalikidwe a kuwombera peening pa dzino padziko kuwuka ndi kuonjezera chiwerengero cha zitsanzo, 5 zinthu, 5 mitundu ndi 44 mbali okwana, anasankhidwa younikira roughness isanayambe ndi pambuyo kuwombera peening pansi pa zikhalidwe za mtanda kupanga kuwombera peening ndondomeko. Onani Table 5 kuti mudziwe zambiri zakuthupi ndi zamankhwala komanso zambiri zakutsogolo zomwe zidatsatiridwa pambuyo pogaya zida. Kukula ndi makulidwe deta kutsogolo ndi kumbuyo mano pamaso kuwombera peening akuwonetsedwa mkuyu. mpaka 3.1 nthawi musanawombedwe ndikudikirira.

Zomwe zimayambitsa kuuma kwa dzino pamtunda pambuyo pa kuwomba

Tingaone kuchokera mfundo kuwombera peening kuti mkulu kuuma ndi mkulu-liwiro kusuntha kuwombera masamba osawerengeka maenje pa mbali pamwamba, amene ndi gwero la zotsalira compressive maganizo. Panthawi imodzimodziyo, maenjewa amayenera kuonjezera kuuma kwa pamwamba. Makhalidwe a mbali pamaso kuwombera peening ndi kuwombera peening ndondomeko magawo zingakhudze roughness pambuyo kuwombera peening, monga tafotokozera Table 6. Mu Gawo 3 la pepala ili, pansi pa zinthu zinayi ndondomeko, dzino pamwamba roughness pambuyo kuwombera peening kumawonjezera madigiri osiyana. Mu mayeso, pali mitundu iwiri, ndicho, chisanadze kuwombera roughness ndi ndondomeko magawo (machulukitsidwe mphamvu kapena Kuphunzira), amene sangathe molondola kudziwa ubale pakati positi kuwombera peening roughness ndi chilichonse chikoka chinthu. Pakalipano, akatswiri ambiri achita kafukufuku pa izi, ndipo apereka chitsanzo cholosera cholosera chapamwamba pambuyo pa kuwomberedwa poyang'ana molingana ndi kayeseleledwe kazinthu, komwe kumagwiritsidwa ntchito kuneneratu za roughness zofananira za njira zosiyanasiyana zowombera.

Malingana ndi zochitika zenizeni komanso kafukufuku wa akatswiri ena, njira zokoka za zinthu zosiyanasiyana zikhoza kuganiziridwa monga momwe tawonetsera mu Table 6. Zingawonekere kuti roughness pambuyo powombera peening imakhudzidwa kwambiri ndi zinthu zambiri, zomwe ndizonso zazikulu zomwe zimakhudza kupanikizika kotsalira kotsalira. Pofuna kuchepetsa roughness pambuyo kuwombera peening pa malo kuonetsetsa yotsalira compressive kupsyinjika, chiwerengero chachikulu cha mayesero ndondomeko chofunika mosalekeza konza ndi chizindikiro kuphatikiza.

Mphamvu ya kuuma kwa dzino pamwamba pa machitidwe a NVH a dongosolo

Zida zamagiya zili mu njira yotumizira ma dynamic, ndipo kuuma kwa dzino kumakhudza magwiridwe antchito a NVH. Zotsatira zoyesera zimasonyeza kuti pansi pa katundu wofanana ndi liwiro, kuwonjezereka kwapamwamba pamwamba, kugwedezeka kwakukulu ndi phokoso la dongosolo; Pamene katundu ndi liwiro zikuwonjezeka, kugwedezeka ndi phokoso zimawonjezeka momveka bwino.

M'zaka zaposachedwa, ntchito zochepetsera mphamvu zatsopano zawonjezeka kwambiri, ndikuwonetsa chitukuko cha liwiro lalikulu komanso torque yayikulu. Pakalipano, torque yaikulu ya mphamvu yathu yatsopano yochepetsera mphamvu ndi 354N · m, ndipo liwiro lalikulu ndi 16000r / min, lomwe lidzawonjezeke mpaka 20000r / min m'tsogolomu. Pansi pazimenezi zogwirira ntchito, chikoka cha kuwonjezeka kwa kuuma kwa dzino pamwamba pa ntchito ya NVH ya dongosolo liyenera kuganiziridwa.

Njira zowongolerera kuuma kwa dzino pamwamba pambuyo posulira

Kuwomberedwa peening ndondomeko pambuyo zida akupera akhoza kusintha kukhudzana kutopa mphamvu ya giya dzino pamwamba ndi kupinda kutopa mphamvu ya muzu dzino. Ngati njirayi iyenera kugwiritsidwa ntchito chifukwa cha mphamvu zamapangidwe a zida, kuti tiganizire momwe NVH imagwirira ntchito, kukhwimitsa mano kwa dzino pambuyo pa kuwomba kutha kusintha kuchokera kuzinthu izi:

a. Konzani kuwombera pa peening ndondomeko magawo, ndi kulamulira matalikidwe a dzino pamwamba akhakula pambuyo kuwombera peening pa maziko kuonetsetsa yotsalira compressive kupsinjika. Izi zimafuna zambiri ndondomeko mayesero, ndi ndondomeko kusinthasintha si amphamvu.

b. The gulu kuwombera peening ndondomeko anatengera, ndiye, pambuyo yachibadwa mphamvu kuwombera peening anamaliza, kuwombera wina peening anawonjezera. The kuchuluka kuwombera peening ndondomeko mphamvu zambiri yaing'ono. Mtundu ndi kukula kwa zida zowombera zitha kusinthidwa, monga kuwombera kwa ceramic, kuwombera magalasi kapena kuwombera waya wachitsulo ndi kukula kochepa.

c. Pambuyo poyang'ana, njira monga kupukuta mano ndi kupukuta kwaulere kumawonjezeredwa.

Mu pepala ili, dzino pamwamba roughness osiyana kuwombera mikhalidwe peening ndondomeko ndi mbali zosiyanasiyana isanayambe ndi pambuyo kuwombera peening anaphunzira, ndipo mfundo zotsatirazi atengedwa zochokera mabuku:

◆ kuwomberedwa peening adzawonjezera dzino pamwamba roughness, amene amakhudzidwa ndi makhalidwe a mbali pamaso kuwomberedwa peening, kuwombera peening ndondomeko magawo ndi zinthu zina, ndi zinthu zimenezi ndi zinthu zofunika kwambiri otsalira compressive maganizo;

◆ Pansi pa zinthu zomwe zilipo mtanda kupanga ndondomeko, pazipita dzino padziko akhakula pambuyo kuwombera peening ndi nthawi 3.1 kuti pamaso kuwombera peening;

◆ Kuwonjezeka kwa kuuma kwa dzino kudzawonjezera kugwedezeka ndi phokoso la dongosolo. Kuchuluka kwa torque ndi liwiro, kumawonekeranso kuwonjezereka kwa kugwedezeka ndi phokoso;

◆ The dzino pamwamba roughness pambuyo kuwombera peening akhoza bwino ndi optimizing kuwombera peening ndondomeko magawo, gulu kuwombera peening, kuwonjezera kupukuta kapena ufulu honing pambuyo kuwombera peening, etc. The kukhathamiritsa wa kuwombera peening ndondomeko magawo akuyembekezeka kulamulira roughness matalikidwe pafupifupi 1.5 zina.