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“御风而行”!湖南这项成果获国家技术发明奖一等奖

2024-06-25 16:58:51
科技湖南
时刻号

一座座桥梁横跨天堑,连接着两岸的风景;一座座大厦高耸入云,支撑着都市的梦想。然而,这些大型工程结构如何抵御风力,减少摇摆和振动,保证人们的安全和舒适?这背后,有一支队伍一直在“御风而行”——
中国工程院院士、湖南大学教授陈政清带领的团队历经10余年攻关,发明了永磁电涡流阻尼减振缓冲耗能新技术。在6月24日召开的全国科技大会、国家科学技术奖励大会、两院院士大会上,该项成果获2023年国家技术发明奖一等奖。
阻尼器是以提供运动的阻力、减小和控制物体振动的装置。此前,土木结构中最常见的阻尼器是液压油阻尼器,可是,液压油阻尼器在使用3年至5年后,往往因机械摩擦而漏油失效,不仅需耗费大量资金维修与更换,也对重大基础设施的安全构成威胁。
“桥梁不像汽车,无法送到维修厂检修,因此,阻尼器的耐久性和使用寿命格外重要。”陈政清介绍,经查阅大量资料发现,电涡流阻尼技术可以有效弥补液压油阻尼器的不足,适用于多种控制需求。可是,为何在全世界土木工程领域都未见到电涡流阻尼器这一品类呢?
原来,电涡流阻尼技术也存在两个“致命伤”:一是传统的电涡流阻尼技术耗能密度太低,无法用于控制大型结构的有害振动;二是当电涡流阻尼器的速度高于某一临界值时,阻尼力随着速度的增加反而降低,减弱了阻尼效果。
“解决好这两个问题,是让电涡流阻尼器应用到土木工程领域的关键。”陈政清带领团队开启了攻坚之路。
“我们用了2年时间解决了第一个难题,又用了8年时间解决了第二个难题,于是便有了百年来首次将电涡流阻尼用于大型工程结构减振的颠覆性创新。”陈政清介绍,通过不断耕耘,团队研发了具有我国自主知识产权的大型结构电涡流阻尼减振全套技术,确立了电涡流阻尼新技术的国际领先地位。
目前,该技术已推广应用于上海中心大厦、江阴长江大桥、川藏铁路藏木桥等120余项大型工程,涉及土木、电力、工程机械等多个行业。
谈起科技创新,陈政清并不满足于当前的成绩。他说:“在我心中,最伟大的创新,是针对人类未来的需求,催生出新兴产业和市场,为人类创造未来,这是我们要追求的。”

信息来源:湖南日报

编辑:省科技事务中心

审核:省科技厅办公室

END

来源:科技湖南 编辑:redcloud
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Exception message was already printed; see it above ...] at cn.rednet.redcloud.template.freemarker.base.impl.BaseTemplateDirective.execute(BaseTemplateDirective.java:31) at freemarker.core.Environment.visit(Environment.java:452) at freemarker.core.UnifiedCall.accept(UnifiedCall.java:102) at freemarker.core.Environment.visit(Environment.java:335) at freemarker.core.Environment.visit(Environment.java:341) at freemarker.core.Environment.process(Environment.java:314) at freemarker.template.Template.process(Template.java:383) at cn.rednet.redcloud.template.service.impl.templatefile.TemplateFileService.generateFileByFile(TemplateFileService.java:737) at cn.rednet.redcloud.template.service.impl.templatefile.TemplateFileService.generateStaticFileForTemplatePage(TemplateFileService.java:219) at cn.rednet.redcloud.template.service.impl.templatefile.TemplateFileService$$FastClassBySpringCGLIB$$48aa813.invoke() at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:793) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:763) at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:89) at cn.rednet.redcloud.common.aspect.ClassMethodTimeAspect.aroundMethod(ClassMethodTimeAspect.java:82) at sun.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:634) at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:624) at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:72) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:763) at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:763) at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:708) at cn.rednet.redcloud.template.service.impl.templatefile.TemplateFileService$$EnhancerBySpringCGLIB$$38eba1c4.generateStaticFileForTemplatePage() at cn.rednet.redcloud.template.service.impl.TemplatePageServiceImpl.saveAndPublishTemplatePage(TemplatePageServiceImpl.java:315) at cn.rednet.redcloud.template.service.impl.TemplatePageServiceImpl.saveAndPublishIndex(TemplatePageServiceImpl.java:600) at cn.rednet.redcloud.template.service.impl.TemplatePageServiceImpl$$FastClassBySpringCGLIB$$92d4ea80.invoke() at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:793) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:763) at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:89) at cn.rednet.redcloud.common.aspect.ClassMethodTimeAspect.aroundMethod(ClassMethodTimeAspect.java:82) at sun.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:634) at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:624) at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:72) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:763) at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:123) at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:388) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:763) at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:763) at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:708) at cn.rednet.redcloud.template.service.impl.TemplatePageServiceImpl$$EnhancerBySpringCGLIB$$de3a36da.saveAndPublishIndex() at cn.rednet.redcloud.template.schedule.RightSidePageStaticJob.lambda$generateHtml$0(RightSidePageStaticJob.java:82) at java.util.ArrayList.forEach(ArrayList.java:1257) at cn.rednet.redcloud.template.schedule.RightSidePageStaticJob.generateHtml(RightSidePageStaticJob.java:79) at cn.rednet.redcloud.template.schedule.RightSidePageStaticJob.generate(RightSidePageStaticJob.java:66) at cn.rednet.redcloud.template.schedule.RightSidePageStaticJob.execute(RightSidePageStaticJob.java:49) at com.xxl.job.core.thread.JobThread.run(JobThread.java:152) Caused by: feign.FeignException$InternalServerError: [500] during [GET] to [http://site-ms/site/feign/6] [SiteServiceFeignClient#getSiteByIdForFeign(int)]: [{"error":"系统异常,请联系管理员!"}] at feign.FeignException.serverErrorStatus(FeignException.java:250) at feign.FeignException.errorStatus(FeignException.java:197) at feign.FeignException.errorStatus(FeignException.java:185) at feign.codec.ErrorDecoder$Default.decode(ErrorDecoder.java:92) at feign.AsyncResponseHandler.handleResponse(AsyncResponseHandler.java:98) at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:141) at feign.SynchronousMethodHandler.invoke(SynchronousMethodHandler.java:91) at feign.ReflectiveFeign$FeignInvocationHandler.invoke(ReflectiveFeign.java:100) at org.springframework.cloud.openfeign.FeignCachingInvocationHandlerFactory$1.proceed(FeignCachingInvocationHandlerFactory.java:66) at org.springframework.cache.interceptor.CacheInterceptor.lambda$invoke$0(CacheInterceptor.java:54) at org.springframework.cache.interceptor.CacheAspectSupport.execute(CacheAspectSupport.java:351) at org.springframework.cache.interceptor.CacheInterceptor.invoke(CacheInterceptor.java:64) at org.springframework.cloud.openfeign.FeignCachingInvocationHandlerFactory.lambda$create$1(FeignCachingInvocationHandlerFactory.java:53) at com.sun.proxy.$Proxy207.getSiteByIdForFeign(Unknown Source) at sun.reflect.GeneratedMethodAccessor206.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344) at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:89) at cn.rednet.redcloud.common.aspect.ClassMethodTimeAspect.aroundMethod(ClassMethodTimeAspect.java:82) at sun.reflect.GeneratedMethodAccessor23.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:634) at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:624) at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:72) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:220) at com.sun.proxy.$Proxy208.getSiteByIdForFeign(Unknown Source) at cn.rednet.redcloud.template.freemarker.directive.SiteDirective.execute(SiteDirective.java:33) at cn.rednet.redcloud.template.freemarker.base.impl.BaseTemplateDirective.execute(BaseTemplateDirective.java:27) ... 61 more