The Experts below are selected from a list of 1110 Experts worldwide ranked by ideXlab platform
Yangyang Wang - One of the best experts on this subject based on the ideXlab platform.
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Impact of contact stress distribution on skid resistance of asphalt pavements
Construction and Building Materials, 2017Co-Authors: Bo Chen, Jiangmiao Yu, Xiaoning Zhang, Yangyang WangAbstract:In order to obtain the actual contact area and stress distribution between Tire and asphalt pavement, a pressure-sensitive film was conducted and adopted for measuring Radial Tire contact stress. In this study, the fractal dimension of the fracture surface was estimated to describe the surface roughness of four types of track boards in terms of utilizing the improved projective covering method. The results showed that Weibull distributions were applicable to describing the contact stress distribution between Tire and pavement, and the Weibull expectation could effectively characterize the stress level. In addition, it was found that greater stress expectations indicated more significant stress concentration effects on the pavement surface. The stress distribution increased with an increase of pavement texture depth or Tire load or a decrease of the Tire inflation pressure. The influence of pavement roughness and Tire load was more significant than Tire inflation pressure on the stress concentration. Compared to the general pavement texture depth (sand patch method), the surface fractal dimension adequately described the surface roughness including macro-texture and micro-texture, and it was directly affected by the proportion of coarse aggregate. The pavement skid-resistance performance was mainly influenced by its high stress regions (>1.8 MPa) at the top of asperities. The skid-resistance performance of asphalt pavement was proved to be better with a high-level average effective stress.
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Impact of contact stress distribution on skid resistance of asphalt pavements
Construction and Building Materials, 2017Co-Authors: Xiaoning Zhang, Yangyang WangAbstract:In order to obtain the actual contact area and stress distribution between Tire and asphalt pavement, a pressure-sensitive film was conducted and adopted for measuring Radial Tire contact stress. In this study, the fractal dimension of the fracture surface was estimated to describe the surface roughness of four types of track boards in terms of utilizing the improved projective covering method. The results showed that Weibull distributions were applicable to describing the contact stress distribution between Tire and pavement, and the Weibull expectation could effectively characterize the stress level. In addition, it was found that greater stress expectations indicated more significant stress concentration effects on the pavement surface. The stress distribution increased with an increase of pavement texture depth or Tire load or a decrease of the Tire inflation pressure. The influence of pavement roughness and Tire load was more significant than Tire inflation pressure on the stress concentration. Compared to the general pavement texture depth (sand patch method), the surface fractal dimension adequately described the surface roughness including macro-texture and micro-texture, and it was directly affected by the proportion of coarse aggregate. The pavement skid-resistance performance was mainly influenced by its high stress regions (>1.8 MPa) at the top of asperities. The skid-resistance performance of asphalt pavement was proved to be better with a high-level average effective stress.Department of Civil and Environmental Engineerin
Xiaoning Zhang - One of the best experts on this subject based on the ideXlab platform.
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Impact of contact stress distribution on skid resistance of asphalt pavements
Construction and Building Materials, 2017Co-Authors: Bo Chen, Jiangmiao Yu, Xiaoning Zhang, Yangyang WangAbstract:In order to obtain the actual contact area and stress distribution between Tire and asphalt pavement, a pressure-sensitive film was conducted and adopted for measuring Radial Tire contact stress. In this study, the fractal dimension of the fracture surface was estimated to describe the surface roughness of four types of track boards in terms of utilizing the improved projective covering method. The results showed that Weibull distributions were applicable to describing the contact stress distribution between Tire and pavement, and the Weibull expectation could effectively characterize the stress level. In addition, it was found that greater stress expectations indicated more significant stress concentration effects on the pavement surface. The stress distribution increased with an increase of pavement texture depth or Tire load or a decrease of the Tire inflation pressure. The influence of pavement roughness and Tire load was more significant than Tire inflation pressure on the stress concentration. Compared to the general pavement texture depth (sand patch method), the surface fractal dimension adequately described the surface roughness including macro-texture and micro-texture, and it was directly affected by the proportion of coarse aggregate. The pavement skid-resistance performance was mainly influenced by its high stress regions (>1.8 MPa) at the top of asperities. The skid-resistance performance of asphalt pavement was proved to be better with a high-level average effective stress.
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Impact of contact stress distribution on skid resistance of asphalt pavements
Construction and Building Materials, 2017Co-Authors: Xiaoning Zhang, Yangyang WangAbstract:In order to obtain the actual contact area and stress distribution between Tire and asphalt pavement, a pressure-sensitive film was conducted and adopted for measuring Radial Tire contact stress. In this study, the fractal dimension of the fracture surface was estimated to describe the surface roughness of four types of track boards in terms of utilizing the improved projective covering method. The results showed that Weibull distributions were applicable to describing the contact stress distribution between Tire and pavement, and the Weibull expectation could effectively characterize the stress level. In addition, it was found that greater stress expectations indicated more significant stress concentration effects on the pavement surface. The stress distribution increased with an increase of pavement texture depth or Tire load or a decrease of the Tire inflation pressure. The influence of pavement roughness and Tire load was more significant than Tire inflation pressure on the stress concentration. Compared to the general pavement texture depth (sand patch method), the surface fractal dimension adequately described the surface roughness including macro-texture and micro-texture, and it was directly affected by the proportion of coarse aggregate. The pavement skid-resistance performance was mainly influenced by its high stress regions (>1.8 MPa) at the top of asperities. The skid-resistance performance of asphalt pavement was proved to be better with a high-level average effective stress.Department of Civil and Environmental Engineerin
Şengül Ömer - One of the best experts on this subject based on the ideXlab platform.
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Motosiklet radyal lastiğinin sürdürülebilir üretimi için bilgisayar destekli tasarımı ve simülasyonu
Marmara Üniversitesi Fen Bilimleri Enstitüsü, 2013Co-Authors: Şengül ÖmerAbstract:ÖZETMOTOSİKLET RADYAL LASTİĞİNİN SÜRDÜLEBİLİR ÜRETİMİ İÇİN BİLGİSAYAR DESTEKLİ TASARIMI VE SİMÜLASYONUSürdürülebilir üretim, kullanıcıların hayat kalitesini artırmayı hedefleyen bir ürünün, üretim aşamasında geçtiği bütün proseslerdeki doğaya zararlı etkilerin minimize edildiği bir üretim anlayışıdır. Günümüzün modern tesislerinde çevre dostu bir yaklaşım ile, üretimde enerji kullanımının minimum düzeyde tutulması, atıkların azaltılması, operasyonel güvenliğin sağlanması gibi kavramlar büyük önem kazanmıştır.Otomotiv sanayi başta olmak üzere, iş makineleri, tarımsal araç gereçler ve askeri ekipman gibi çeşitli alanlardaki gelişime bağlı olarak oluşan talebe karşılık lastik sektörü geçen yüzyıl içinde büyük ilerlemeler kaydetmiştir. İnsanlık tarihinin en önemli buluşlarından biri olarak kabul edilen ve çeşitli sektörlerde görünüş itibariyle basit ancak teknolojisine inildiğinde bir o kadar karmaşık hayati bir görevi olan tekerleklerin lastiklerinin üretim sistemlerinin sürdürülebilirlik açısından yeniden yapılandırılması büyük önem arz etmektedir.Ülkemizde kullanımı hızla artan yüksek performansa sahip iki tekerlekli araçların lastiklerinin uygun teknik özelliklere sahip olması önem taşımaktadır. Çapraz lastiğe göre daha uzun ömürlü, fren emniyeti daha üstün ve yakıt tüketim oranı daha az olan radyal lastiğe olan talep her geçen gün artmaktadır. Bu tezde yoğun kullanım olan 120/70 R 16 ebatlı lastik tasarımı gerçekleştirilerek ve Sonlu Eleman analizi yapılacaktır. Boyutların ve geometrinin değişiminin lastik üretimindeki gerilim ve şekil değişimlerine etkisini belirlemeye çalışılmıştır.Anahtar Kelimeler:Motosiklet Lastik , Sonlu Elemanlar Yöntemi, Gerilme Analizi, Deformasyon AnaliziABSTRACTMOTORCYCLE Radial Tire SUSTAINABLE PRODUCTION SYSTEM DESIGN AND SIMULATIONSustainable production is the concept of producing goods which improve the quality of life while minimizing the harmful effects of the production process to the nature. Today in contemporary production plants, environmentally friendly notions like minimum usage of energy, reduction of pollutants and maintenance of operational safety have gained great importance.The rubber industry has made considerable advances in the past century due to the increased demand resulting from the development in many sectors such as especially automotive, heavy construction equipment, agricultural appliances and military equipment. The reconstruction of the production of rubber tyres in terms of sustainability has great importance because wheels being regarded as one of the most fundamental inventions in history, have an apparently simple but technologically vital role in many areas.It is crucial that tyres of high performance two-wheeled vehicles, whose usage has increased in our country, have appropriate technical properties The demand towards Radial tyres, which have superior properties over the cross tyres in terms of lifetime, brake safety and fuel consumption, is increasing rapidly. In this respect, besides satisfying the demand for Radial tyres by importation, also making domestic production will contribute to the industry and economy of our country.In this study, the intensive use of 120/70 R 16 size Tire design and finite-element analysis will be performed. The dimensions and shape of the geometry to determine the impact of sudden changes in voltage and rubber production.Keywords:Motorcycle Tire, Finite Element Method, Stress Analysis, deformation Analysi
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Motosiklet radyal lastiğinin sürdürülebilir üretimi için bilgisayar destekli tasarımı ve simülasyonu
'Marmara Universitesi Ilahiyat Fakultesi Dergisi', 2013Co-Authors: Şengül ÖmerAbstract:MOTOSİKLET RADYAL LASTİĞİNİN SÜRDÜLEBİLİR ÜRETİMİ İÇİN BİLGİSAYAR DESTEKLİ TASARIMI VE SİMÜLASYONU Sürdürülebilir üretim, kullanıcıların hayat kalitesini artırmayı hedefleyen bir ürünün, üretim aşamasında geçtiği bütün proseslerdeki doğaya zararlı etkilerin minimize edildiği bir üretim anlayışıdır. Günümüzün modern tesislerinde çevre dostu bir yaklaşım ile, üretimde enerji kullanımının minimum düzeyde tutulması, atıkların azaltılması, operasyonel güvenliğin sağlanması gibi kavramlar büyük önem kazanmıştır. Otomotiv sanayi başta olmak üzere, iş makineleri, tarımsal araç gereçler ve askeri ekipman gibi çeşitli alanlardaki gelişime bağlı olarak oluşan talebe karşılık lastik sektörü geçen yüzyıl içinde büyük ilerlemeler kaydetmiştir. İnsanlık tarihinin en önemli buluşlarından biri olarak kabul edilen ve çeşitli sektörlerde görünüş itibariyle basit ancak teknolojisine inildiğinde bir o kadar karmaşık hayati bir görevi olan tekerleklerin lastiklerinin üretim sistemlerinin sürdürülebilirlik açısından yeniden yapılandırılması büyük önem arz etmektedir. Ülkemizde kullanımı hızla artan yüksek performansa sahip iki tekerlekli araçların lastiklerinin uygun teknik özelliklere sahip olması önem taşımaktadır. Çapraz lastiğe göre daha uzun ömürlü, fren emniyeti daha üstün ve yakıt tüketim oranı daha az olan radyal lastiğe olan talep her geçen gün artmaktadır. Bu tezde yoğun kullanım olan 120/70 R 16 ebatlı lastik tasarımı gerçekleştirilerek ve Sonlu Eleman analizi yapılacaktır. Boyutların ve geometrinin değişiminin lastik üretimindeki gerilim ve şekil değişimlerine etkisini belirlemeye çalışılmıştır. Anahtar Kelimeler:Motosiklet Lastik , Sonlu Elemanlar Yöntemi, Gerilme Analizi, Deformasyon Analizi ABSTRACT MOTORCYCLE Radial Tire SUSTAINABLE PRODUCTION SYSTEM DESIGN AND SIMULATION Sustainable production is the concept of producing goods which improve the quality of life while minimizing the harmful effects of the production process to the nature. Today in contemporary production plants, environmentally friendly notions like minimum usage of energy, reduction of pollutants and maintenance of operational safety have gained great importance. The rubber industry has made considerable advances in the past century due to the increased demand resulting from the development in many sectors such as especially automotive, heavy construction equipment, agricultural appliances and military equipment. The reconstruction of the production of rubber tyres in terms of sustainability has great importance because wheels being regarded as one of the most fundamental inventions in history, have an apparently simple but technologically vital role in many areas. It is crucial that tyres of high performance two-wheeled vehicles, whose usage has increased in our country, have appropriate technical properties The demand towards Radial tyres, which have superior properties over the cross tyres in terms of lifetime, brake safety and fuel consumption, is increasing rapidly. In this respect, besides satisfying the demand for Radial tyres by importation, also making domestic production will contribute to the industry and economy of our country. In this study, the intensive use of 120/70 R 16 size Tire design and finite-element analysis will be performed. The dimensions and shape of the geometry to determine the impact of sudden changes in voltage and rubber production. Keywords:Motorcycle Tire, Finite Element Method, Stress Analysis, deformation Analysi
Bo Chen - One of the best experts on this subject based on the ideXlab platform.
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Impact of contact stress distribution on skid resistance of asphalt pavements
Construction and Building Materials, 2017Co-Authors: Bo Chen, Jiangmiao Yu, Xiaoning Zhang, Yangyang WangAbstract:In order to obtain the actual contact area and stress distribution between Tire and asphalt pavement, a pressure-sensitive film was conducted and adopted for measuring Radial Tire contact stress. In this study, the fractal dimension of the fracture surface was estimated to describe the surface roughness of four types of track boards in terms of utilizing the improved projective covering method. The results showed that Weibull distributions were applicable to describing the contact stress distribution between Tire and pavement, and the Weibull expectation could effectively characterize the stress level. In addition, it was found that greater stress expectations indicated more significant stress concentration effects on the pavement surface. The stress distribution increased with an increase of pavement texture depth or Tire load or a decrease of the Tire inflation pressure. The influence of pavement roughness and Tire load was more significant than Tire inflation pressure on the stress concentration. Compared to the general pavement texture depth (sand patch method), the surface fractal dimension adequately described the surface roughness including macro-texture and micro-texture, and it was directly affected by the proportion of coarse aggregate. The pavement skid-resistance performance was mainly influenced by its high stress regions (>1.8 MPa) at the top of asperities. The skid-resistance performance of asphalt pavement was proved to be better with a high-level average effective stress.
Jiangmiao Yu - One of the best experts on this subject based on the ideXlab platform.
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Impact of contact stress distribution on skid resistance of asphalt pavements
Construction and Building Materials, 2017Co-Authors: Bo Chen, Jiangmiao Yu, Xiaoning Zhang, Yangyang WangAbstract:In order to obtain the actual contact area and stress distribution between Tire and asphalt pavement, a pressure-sensitive film was conducted and adopted for measuring Radial Tire contact stress. In this study, the fractal dimension of the fracture surface was estimated to describe the surface roughness of four types of track boards in terms of utilizing the improved projective covering method. The results showed that Weibull distributions were applicable to describing the contact stress distribution between Tire and pavement, and the Weibull expectation could effectively characterize the stress level. In addition, it was found that greater stress expectations indicated more significant stress concentration effects on the pavement surface. The stress distribution increased with an increase of pavement texture depth or Tire load or a decrease of the Tire inflation pressure. The influence of pavement roughness and Tire load was more significant than Tire inflation pressure on the stress concentration. Compared to the general pavement texture depth (sand patch method), the surface fractal dimension adequately described the surface roughness including macro-texture and micro-texture, and it was directly affected by the proportion of coarse aggregate. The pavement skid-resistance performance was mainly influenced by its high stress regions (>1.8 MPa) at the top of asperities. The skid-resistance performance of asphalt pavement was proved to be better with a high-level average effective stress.