高性能的高尔夫球杆具有烦人的噪音
文章来源:未知 文章作者:enread 发布时间:2016-05-25 08:35 字体: [ ]  进入论坛
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In 2007, a new type of golf club hit the market. The distribution of mass in the club head made it less likely to twist, making an off-center hit less likely to send the ball veering1 off course. It did have one drawback: a loud noise when it struck the ball, piercing through the tranquility of a golf course. The club never grew popular among players, with many saying they disliked the noise. "Some players compared the sound to a cookie tray hitting the top of a car," said Daniel Russell, a professor of acoustics2 at The Pennsylvania State University. "It was such a different -- some say annoyingly loud -- sound, it raised eyebrows3."
 
Russell and his graduate student Peter Kerrian set out to find the cause of the offensive clang. They had analyzed4 a variety of clubs from recent years and the "noisy club" stood out as a particularly interesting test case.
 
The researchers tracked the clanging sound to vibrations5 in the bottom of the club head, called the sole, that were strongest in the most sensitive range of human hearing. 
 
The researchers will present their results at the 171st meeting of the Acoustical6 Society of America, held May 23-27 in Salt Lake City.
 
Russell has long studied the acoustics of sports equipment, including baseball bats, tennis rackets and hockey sticks. He says sound is one of the major considerations for players in selecting equipment. "They want to hear the sound and be able to get a sense of the quality of the hit," he said.
 
In the case of the new driver, the sound not only didn't match expectations, it annoyed people.
 
"The sound had peaks in the 2-3 kilohertz range. The human ear is very sensitive to this range," Kerrian said. He compared the sound to the tin-can ping of an aluminum7 baseball bat, another grating sound for sports aficionados8.


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1 veering 7f532fbe9455c2b9628ab61aa01fbced     
n.改变的;犹豫的;顺时针方向转向;特指使船尾转向上风来改变航向v.(尤指交通工具)改变方向或路线( veer的现在分词 );(指谈话内容、人的行为或观点)突然改变;(指风) (在北半球按顺时针方向、在南半球按逆时针方向)逐渐转向;风向顺时针转
参考例句:
  • Anyone veering too close to the convoys risks being shot. 任何人改变方向,过于接近车队就有遭枪击的风险。 来自互联网
  • The little boat kept veering from its course in such a turbulent river. 小船在这湍急的河中总是改变方向。 来自互联网
2 acoustics kJ2y6     
n.声学,(复)音响效果,音响装置
参考例句:
  • The acoustics of the new concert hall are excellent.这座新音乐厅的音响效果极好。
  • The auditorium has comfortable seating and modern acoustics.礼堂里有舒适的座椅和现代化的音响设备。
3 eyebrows a0e6fb1330e9cfecfd1c7a4d00030ed5     
眉毛( eyebrow的名词复数 )
参考例句:
  • Eyebrows stop sweat from coming down into the eyes. 眉毛挡住汗水使其不能流进眼睛。
  • His eyebrows project noticeably. 他的眉毛特别突出。
4 analyzed 483f1acae53789fbee273a644fdcda80     
v.分析( analyze的过去式和过去分词 );分解;解释;对…进行心理分析
参考例句:
  • The doctors analyzed the blood sample for anemia. 医生们分析了贫血的血样。 来自《简明英汉词典》
  • The young man did not analyze the process of his captivation and enrapturement, for love to him was a mystery and could not be analyzed. 这年轻人没有分析自己蛊惑著迷的过程,因为对他来说,爱是个不可分析的迷。 来自《简明英汉词典》
5 vibrations d94a4ca3e6fa6302ae79121ffdf03b40     
n.摆动( vibration的名词复数 );震动;感受;(偏离平衡位置的)一次性往复振动
参考例句:
  • We could feel the vibrations from the trucks passing outside. 我们可以感到外面卡车经过时的颤动。
  • I am drawn to that girl; I get good vibrations from her. 我被那女孩吸引住了,她使我产生良好的感觉。 来自《简明英汉词典》
6 acoustical acoustical     
adj. 听觉的,声学的,音响学的
参考例句:
  • This system can set up acoustical resonances. 这种系统能产生共鸣。
  • The relevance of acoustical principles is by no means limited to sound and hearing. 声学原理并不仅仅适用于声音和听觉。
7 aluminum 9xhzP     
n.(aluminium)铝
参考例句:
  • The aluminum sheets cannot be too much thicker than 0.04 inches.铝板厚度不能超过0.04英寸。
  • During the launch phase,it would ride in a protective aluminum shell.在发射阶段,它盛在一只保护的铝壳里。
8 aficionados 54e9eaccecb5f096c86d6db20d07e644     
n.酷爱…者,…迷( aficionado的名词复数 ); 爱看斗牛的人
参考例句:
  • West Coast aficionados of postwar coffee-shop architecture(Karal Ann Marling) 西海岸战后咖啡店式建筑的狂热追随者(卡拉尔安马林) 来自互联网
  • Clay developed a radical style which appalled boxing aficionados. 克莱发展出一种震惊拳击迷的全新风格。 来自互联网
TAG标签: club golf noise
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