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基于TPNR的整车路噪声学性能优化 被引量:1
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作者 徐驰 陈应航 《盐城工学院学报(自然科学版)》 CAS 2020年第1期21-27,共7页
为研究声学包性能对整车路噪表现的影响,采用TPNR静态试验和道路动态试验,研究了声学包方案对某SUV乘用车中、高频路噪性能的提升效果,结果表明:(1)封堵A柱和前门槛的钣金孔洞、行李箱门槛增加吸声材料和C柱下护板空腔内增加阻隔材料都... 为研究声学包性能对整车路噪表现的影响,采用TPNR静态试验和道路动态试验,研究了声学包方案对某SUV乘用车中、高频路噪性能的提升效果,结果表明:(1)封堵A柱和前门槛的钣金孔洞、行李箱门槛增加吸声材料和C柱下护板空腔内增加阻隔材料都具有提高整车路噪隔声量的效果;(2)动态测试表明,提升方案对60 km/h匀速工况下,整车前、后排的中、高频路噪改善效果明显,而在80 km/h匀速工况下,仅对后排改善效果明显,对前排改善效果稍弱。 展开更多
关键词 声学包优化 路噪 tpnr
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TPNR Membrane Reinforcing with Cotton Fibre Spun
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作者 Wirach Taweepreda Kritsada Phatcharasit Wipa Saesia 《Journal of Chemistry and Chemical Engineering》 2012年第9期799-802,共4页
Reinforcement of TPNR (thermoplastic natural rubber) with cotton fibre spun was prepared by using hot compression moulding. The TPNR was prepared by mixing NR (natural rubber) with PE (polyethylene) using 2-roll... Reinforcement of TPNR (thermoplastic natural rubber) with cotton fibre spun was prepared by using hot compression moulding. The TPNR was prepared by mixing NR (natural rubber) with PE (polyethylene) using 2-roll mills before compressed on cotton fibre spun and vulcanized at 150℃. The mechanical properties and morphology of the membrane were investigated using DMTA (dynamic mechanical thermal analyzer) and SEM (scanning electron microscopy), respectively. The membrane strength was increased from 10 MPa to 18 MPa after reinforced with cotton fibre spun as well as the increasing of dielectric constant. The membrane was immersed in xylene to remove PE phase before characterization of membrane properties. 展开更多
关键词 tpnr natural rubber cotton fibre spun REINFORCEMENT PE.
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热塑性天然橡胶
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作者 李瑞英 《天津橡胶》 1991年第2期16-17,共2页
关键词 热塑性弹性体 天然橡胶 tpnr
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