EFFECT OF BORE STROKE RATIOS ON OVERALL FRICTION MODEL OF SI ENGINE
Bore Stroke ratios are considered one of the most significant impact on friction of SI engine. This paper outlines a method or model which provides the engine designer with an estimation of overall friction mean effective pressure due to change of bore stroke ratios in spark-ignition internal combus...
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| Formato: | Artigo |
| Idioma: | inglés |
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R&D Wing, MIST
2020
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| Acceso en liña: | http://hdl.handle.net/123456789/551 |
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| _version_ | 1868227040688209920 |
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| author | Mizanuzzaman, Major Md. |
| author_browse | Mizanuzzaman, Major Md. |
| author_facet | Mizanuzzaman, Major Md. |
| author_sort | Mizanuzzaman, Major Md. |
| collection | DSpace |
| description | Bore Stroke ratios are considered one of the most significant impact on friction of SI engine. This paper outlines a method or model which provides the engine designer with an estimation of overall friction mean effective pressure due to change of bore stroke ratios in spark-ignition internal combustion engines. The general effect of overall friction on engine performance was examined during normal working conditions. A parametric study was performed covering wide range of dependent variables such as engine speed, change of bore stroke ratios with and without changing engine volume. Different bore stroke ratios are used for three different cylinder condition / model, such as, at constant volume, at variable bore and volume (constant stroke), and lastly at variable stroke and volume (constant bore). Various average friction coefficients are used considering oil viscosity property, film thickness, temperature effect and roughness of the surface. At low speed with lower bore stroke ratio and at high speed with higher bore stroke ratio, constant bore model gives less friction irrespective of compression ratio. At low speed, most of the friction is due to the piston rings, and at higher speeds, the majority of the friction is from the piston skirt. |
| format | Article |
| id | oai:localhost:123456789-551 |
| institution | My University |
| language | English |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | R&D Wing, MIST |
| publisherStr | R&D Wing, MIST |
| record_format | dspace |
| spelling | oai:localhost:123456789-5512020-07-06T03:11:21Z EFFECT OF BORE STROKE RATIOS ON OVERALL FRICTION MODEL OF SI ENGINE Mizanuzzaman, Major Md. friction, engine speed, bore stroke ratio, constant volume model, constant stroke model, constant bore model. Bore Stroke ratios are considered one of the most significant impact on friction of SI engine. This paper outlines a method or model which provides the engine designer with an estimation of overall friction mean effective pressure due to change of bore stroke ratios in spark-ignition internal combustion engines. The general effect of overall friction on engine performance was examined during normal working conditions. A parametric study was performed covering wide range of dependent variables such as engine speed, change of bore stroke ratios with and without changing engine volume. Different bore stroke ratios are used for three different cylinder condition / model, such as, at constant volume, at variable bore and volume (constant stroke), and lastly at variable stroke and volume (constant bore). Various average friction coefficients are used considering oil viscosity property, film thickness, temperature effect and roughness of the surface. At low speed with lower bore stroke ratio and at high speed with higher bore stroke ratio, constant bore model gives less friction irrespective of compression ratio. At low speed, most of the friction is due to the piston rings, and at higher speeds, the majority of the friction is from the piston skirt. 2020-07-06T03:11:21Z 2020-07-06T03:11:21Z 2012-05 Article 2224-2007 http://hdl.handle.net/123456789/551 en application/pdf R&D Wing, MIST |
| spellingShingle | friction, engine speed, bore stroke ratio, constant volume model, constant stroke model, constant bore model. Mizanuzzaman, Major Md. EFFECT OF BORE STROKE RATIOS ON OVERALL FRICTION MODEL OF SI ENGINE |
| title | EFFECT OF BORE STROKE RATIOS ON OVERALL FRICTION MODEL OF SI ENGINE |
| title_full | EFFECT OF BORE STROKE RATIOS ON OVERALL FRICTION MODEL OF SI ENGINE |
| title_fullStr | EFFECT OF BORE STROKE RATIOS ON OVERALL FRICTION MODEL OF SI ENGINE |
| title_full_unstemmed | EFFECT OF BORE STROKE RATIOS ON OVERALL FRICTION MODEL OF SI ENGINE |
| title_short | EFFECT OF BORE STROKE RATIOS ON OVERALL FRICTION MODEL OF SI ENGINE |
| title_sort | effect of bore stroke ratios on overall friction model of si engine |
| topic | friction, engine speed, bore stroke ratio, constant volume model, constant stroke model, constant bore model. |
| url | http://hdl.handle.net/123456789/551 |
| work_keys_str_mv | AT mizanuzzamanmajormd effectofborestrokeratiosonoverallfrictionmodelofsiengine |