使用3D Xtra系统获取滚动轮胎的3D工作变形，揭示噪音来源
 <\/p>\r\n

在不同的驾驶条件下，滚动轮胎会在车厢内外产生大量的噪音(NVH)，这种噪音必须解决掉的三大理由：<\/p>\r\n

` 滚动轮胎产生的路面噪音会降低车乘体验，并会干扰道路沿线的居民。
` 许多关注市区噪声的国家预计会出台有关限制轮胎噪音的新规定。
` 电动汽车因没有内燃机噪音的优势，有可能因为轮胎噪音而大打折扣。<\/p>","imageObject":{"variants":[{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/e\/c\/csm_car-tires_4df3bc4113.jpg.webp","type":"image\/webp","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/e\/c\/csm_car-tires_4df3bc4113.jpg","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/car-tires.jpg.webp","type":"image\/webp","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/car-tires.jpg","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/car-tires.jpg.webp","type":"image\/webp","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/car-tires.jpg","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/e\/c\/csm_car-tires_bdbbf6c548.jpg.webp","type":"image\/webp","name":"extrasmall","width":"640","breakpoint":"320"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/e\/c\/csm_car-tires_bdbbf6c548.jpg","name":"extrasmall","width":"640","breakpoint":"320"}],"default":{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/e\/c\/csm_car-tires_4df3bc4113.jpg","alt":"","title":""}},"link":"https:\/\/magazine.polytec.com\/cn\/xtra-3d-scanning-vibrometry-on-rolling-tires","origUid":6561,"readingTime":"5 min","subline":"揭示道路噪音来源
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The growth of the drone market is multi-faceted: growing concerns about national and border security drive the need for advanced aerial surveillance, package delivery services experience an increased demand for drone operations accelerated by the pandemic, hazardous environments in mining and construction open the eyes ...<\/p>","imageObject":{"variants":[{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/4\/e\/csm_quiet-drones_a0cd689c9f.jpg.webp","type":"image\/webp","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/4\/e\/csm_quiet-drones_a0cd689c9f.jpg","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/4\/e\/csm_quiet-drones_45467c4e31.jpg.webp","type":"image\/webp","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/4\/e\/csm_quiet-drones_45467c4e31.jpg","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/4\/e\/csm_quiet-drones_8c6313880b.jpg.webp","type":"image\/webp","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/4\/e\/csm_quiet-drones_8c6313880b.jpg","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/4\/e\/csm_quiet-drones_fdefca8a1b.jpg.webp","type":"image\/webp","name":"extrasmall","width":"640","breakpoint":"320"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/4\/e\/csm_quiet-drones_fdefca8a1b.jpg","name":"extrasmall","width":"640","breakpoint":"320"}],"default":{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/4\/e\/csm_quiet-drones_a0cd689c9f.jpg","alt":"Flying drone","title":""}},"link":"https:\/\/magazine.polytec.com\/cn\/noise-and-modal-analysis-for-quiet-and-reliable-operation","origUid":6651,"readingTime":"6 min","subline":"Quiet drones","tags":[{"title":"General R&D","uid":6},{"title":"Automotive & aerospace","uid":3}],"technologies":[{"title":"Vibrometry","uid":214}],"title":"Noise and modal analysis for quiet and reliable operation","uid":6718,"visits":209},{"authors":[{"fullName":"Patrick Buchwald et al.","fullOfficialName":" Patrick Buchwald et al."},{"fullName":"Jochen Schell","fullOfficialName":"Dr. Jochen Schell"},{"fullName":"Heinrich Steger","fullOfficialName":"Dr. Heinrich Steger"}],"description":"

飞机油耗是当前关于全球气候变化讨论的热点话题之一，这其中一个重要的影响因素是飞机发动机本身的设计。与传统发动机叶片不同，整体叶盘由一块材料加工而成。<\/p>","imageObject":{"variants":[{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/4\/5\/csm_blisk-fem_1c8d5aab50.jpg.webp","type":"image\/webp","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/4\/5\/csm_blisk-fem_1c8d5aab50.jpg","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/blisk-fem.jpg.webp","type":"image\/webp","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/blisk-fem.jpg","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/blisk-fem.jpg.webp","type":"image\/webp","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/blisk-fem.jpg","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/4\/5\/csm_blisk-fem_06f784cc17.jpg.webp","type":"image\/webp","name":"extrasmall","width":"640","breakpoint":"320"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/4\/5\/csm_blisk-fem_06f784cc17.jpg","name":"extrasmall","width":"640","breakpoint":"320"}],"default":{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/4\/5\/csm_blisk-fem_1c8d5aab50.jpg","alt":"blisk fem ","title":""}},"link":"https:\/\/magazine.polytec.com\/cn\/%E6%95%B4%E4%BD%93%E5%8F%B6%E7%9B%98%E7%9A%84%E6%9C%89%E9%99%90%E5%85%83%E6%A8%A1%E6%80%81%E7%9B%B8%E5%85%B3%E6%80%A7%E5%88%86%E6%9E%90","origUid":6680,"readingTime":"6 min","subline":"整体叶盘的有限元模态相关性分析","tags":[{"title":"Automotive & aerospace","uid":3}],"technologies":[],"title":"三维扫描式激光测振仪测量节能涡轮","uid":6680,"visits":720},{"authors":[{"fullName":"Daniel Wallner et al.","fullOfficialName":"Dr. Daniel Wallner et al."},{"fullName":"Jochen Schell","fullOfficialName":"Dr. Jochen Schell"}],"description":"

仿真模型的验证是激光测振仪的重要应用领域之一。为此，先将有限元模型的几何数据导入至测量系统的软件中，由系统内置的校准系统完成模型与实物之间的校准，导入的样品几何数据与其实际的几何数据之间的偏差，都将由软件内置的形貌测试程序来进行修正并更新至模型中，这种方法精确度高，还能节省大量时间。<\/p>","imageObject":{"variants":[{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/3\/e\/csm_brake-disc_488b93d4a3.jpg.webp","type":"image\/webp","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/3\/e\/csm_brake-disc_488b93d4a3.jpg","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/brake-disc.jpg.webp","type":"image\/webp","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/brake-disc.jpg","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/brake-disc.jpg.webp","type":"image\/webp","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/brake-disc.jpg","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/3\/e\/csm_brake-disc_0ab10ac9a2.jpg.webp","type":"image\/webp","name":"extrasmall","width":"640","breakpoint":"320"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/3\/e\/csm_brake-disc_0ab10ac9a2.jpg","name":"extrasmall","width":"640","breakpoint":"320"}],"default":{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/3\/e\/csm_brake-disc_488b93d4a3.jpg","alt":"","title":""}},"link":"https:\/\/magazine.polytec.com\/cn\/%E5%88%B6%E5%8A%A8%E7%9B%98%E7%9A%84%E8%AF%95%E9%AA%8C%E6%A8%A1%E6%80%81%E5%88%86%E6%9E%90","origUid":6691,"readingTime":"4 min","subline":"制动盘的试验模态分析","tags":[{"title":"Automotive & aerospace","uid":3}],"technologies":[],"title":"制动盘的试验模态分析","uid":6691,"visits":1619},{"authors":[{"fullName":"Gennady A. Amiryants at al.","fullOfficialName":"Dr. Sci. Tech. Gennady A. Amiryants at al."}],"description":"

第七届欧洲框架计划的SADE项目（新一代机翼的增升装置），旨在提升飞机在飞行过程中尤其是着陆时的空气动力性能、燃油经济性及降低噪音和排放。<\/p>","imageObject":{"variants":[{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/8\/4\/csm_above-the-clouds_3a798d8022.jpg.webp","type":"image\/webp","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/8\/4\/csm_above-the-clouds_3a798d8022.jpg","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/above-the-clouds.jpg.webp","type":"image\/webp","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/above-the-clouds.jpg","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/above-the-clouds.jpg.webp","type":"image\/webp","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/above-the-clouds.jpg","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/8\/4\/csm_above-the-clouds_29ced31496.jpg.webp","type":"image\/webp","name":"extrasmall","width":"640","breakpoint":"320"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/8\/4\/csm_above-the-clouds_29ced31496.jpg","name":"extrasmall","width":"640","breakpoint":"320"}],"default":{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/8\/4\/csm_above-the-clouds_3a798d8022.jpg","alt":"","title":""}},"link":"https:\/\/magazine.polytec.com\/cn\/%E7%A1%AE%E5%AE%9A%E5%A4%A7%E5%9E%8B%E8%87%AA%E9%80%82%E5%BA%94%E6%9F%94%E6%80%A7%E6%9C%BA%E7%BF%BC%E7%9A%84%E5%8A%A8%E5%8A%9B%E5%AD%A6%E7%89%B9%E6%80%A7","origUid":6690,"readingTime":"3 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