期刊文献+
共找到192篇文章
< 1 2 10 >
每页显示 20 50 100
某驾驶员座椅鞭打性能分析及优化 被引量:11
1
作者 党雪芒 方锐 +1 位作者 谢书港 杨黎明 《机电工程》 CAS 2015年第2期190-195,共6页
针对某驾驶员座椅在鞭打试验中颈部伤害值过大问题,总结C-NCAP(2015版)鞭打试验评价规程和评分原则,研究了颈部伤害指标与假人颈部运动响应的相关性。结合影响鞭打试验性能的座椅参数分析了该座椅鞭打试验失分原因。按照C-NCAP鞭打试验... 针对某驾驶员座椅在鞭打试验中颈部伤害值过大问题,总结C-NCAP(2015版)鞭打试验评价规程和评分原则,研究了颈部伤害指标与假人颈部运动响应的相关性。结合影响鞭打试验性能的座椅参数分析了该座椅鞭打试验失分原因。按照C-NCAP鞭打试验具体规则,建立了该座椅鞭打的有限元分析模型,并与摸底试验结果进行对标验证,验证了模型的有效性。在该模型基础上,进行了座椅结构的仿真优化改进。研究结果表明,有限元仿真模型计算的颈部伤害曲线趋势、峰值大小与试验基本一致,所建立的仿真模型能较好地预测试验中的假人颈部运动响应;通过优化头枕及靠背上部刚度值和减小头部和座椅头枕间的水平距离,减小头部相对人体躯干运动,可显著改善鞭打试验中颈部伤害,实现设计目标。 展开更多
关键词 座椅 鞭打 颈部伤害 C-NCAP
下载PDF
冥想应用于颈椎病的研究进展 被引量:1
2
作者 吴佳俊 孙中川 +3 位作者 李建民 张栋 葛志超 赵庆 《中国当代医药》 CAS 2024年第23期189-193,共5页
随着社会节奏的加快,颈椎病已经成为城市人群的常见病、多发病。颈椎病患者时常遭受着颈痛,久而久之造成焦虑、抑郁等负面情绪,严重影响患者的生活质量,给个人、家庭带来巨大的经济及精神负担。近年来,冥想作为一种具有强大生理调节功... 随着社会节奏的加快,颈椎病已经成为城市人群的常见病、多发病。颈椎病患者时常遭受着颈痛,久而久之造成焦虑、抑郁等负面情绪,严重影响患者的生活质量,给个人、家庭带来巨大的经济及精神负担。近年来,冥想作为一种具有强大生理调节功能的心理训练方式受到了越来越多的关注。冥想可以通过调节机体的神经-内分泌-免疫网络等机制,达到有效去除抑郁、焦虑和缓解压力等作用。冥想有机整合了祖国医学中经络学说、脏象学说、五行学说以及天人合一的理论、情志理论、扶正理论;并结合了现代心身医学、心理治疗和正念冥想中的重要理论与实践;充分利用了传统医学中的自然疗法和音乐疗法。本文将从冥想的概念、冥想对颈椎病的研究成果、冥想对颈椎病的干预策略等方面进行综述。 展开更多
关键词 冥想 颈椎病 焦虑 抑郁 颈痛 生活质量
下载PDF
汽车座椅挥鞭伤性能要求及提升方案 被引量:5
3
作者 张程 《汽车工程师》 2021年第1期51-54,共4页
某项目座椅系统在C-NCAP 2021版前排座椅鞭打试验及评价中,出现因头枕过低和头枕接触面对假人头部的支撑面积小而失分的问题。通过解读新版法规,并对鞭打试验失分进行分析,发现座椅的头枕结构设计不合理。在挥鞭伤试验过程中,头部运动... 某项目座椅系统在C-NCAP 2021版前排座椅鞭打试验及评价中,出现因头枕过低和头枕接触面对假人头部的支撑面积小而失分的问题。通过解读新版法规,并对鞭打试验失分进行分析,发现座椅的头枕结构设计不合理。在挥鞭伤试验过程中,头部运动经历了爬升阶段、挥鞭阶段、回弹阶段,找到了失分原因为座椅头枕后间隙设计不合理和对乘客头部的支撑不足。通过修正座椅头后间隙,调整座椅头枕的结构刚度,获得该项试验较高分值。结果表明,头枕的优化设计能较好地提升鞭打得分,并且有利于车辆达到C-NACP 2021版5星要求。 展开更多
关键词 C-NCAP 2021 座椅 挥鞭伤 头枕 方案
下载PDF
Altered thermal sensitivity in facial skin in chronic whiplash-associated disorders 被引量:1
4
作者 Birgitta Hggman-Henrikson Ewa Lampa Erik Nordh 《International Journal of Oral Science》 SCIE CAS CSCD 2013年第3期150-154,共5页
There is a close functional relationship between the jaw and neck regions and it has been suggested that trigeminal sensory impairment can follow whiplash injury.Inclusion of manageable routines for valid assessment o... There is a close functional relationship between the jaw and neck regions and it has been suggested that trigeminal sensory impairment can follow whiplash injury.Inclusion of manageable routines for valid assessment of the facial sensory capacity is thus needed for comprehensive evaluations of patients exposed to such trauma.The present study investigated facial thermal thresholds in patients with chronic whiplash-associated disorders(WADs)with both a qualitative method and quantitative sensory testing(QST).Ten women with pain and dysfunction following a whiplash injury were compared to 10 healthy age-matched women.Thermal detection thresholds were assessed by qualitative chair-side testing and by QST according to the method-of-limits.Seven test sites in the facial skin(overlying each trigeminal branch bilaterally,and the midpoint of the chin)were examined.The detection warm and cold thresholds were defined as the mean values of 10 individual thresholds.For the WAD patients,the qualitative assessment demonstrated both reduced and increased sensitivity compared to the healthy,whereas QST systematically showed significantly higher detection thresholds(i.e.,decreased sensitivity)for both cold and warm stimuli.For the individuals who were assessed as having increased sensitivity in the qualitative assessment,the QST displayed either normal or higher thresholds,i.e.,decreased sensitivity.The results suggest that QST is more sensitive for detecting thermal sensory disturbances in the face than a qualitative method.The impaired thermal sensitivity among the patients corroborates the notion of altered thermal detection capacity induced by WAD-related pain. 展开更多
关键词 JAW NECK quantitative sensory testing thermal thresholds TRIGEMINAL whiplash injury
下载PDF
Innervation of cervical ventral facet joint capsule: Histological evidence 被引量:1
5
作者 Srinivasu Kallakuri Yan Li +1 位作者 Chaoyang Chen John M Cavanaugh 《World Journal of Orthopedics》 2012年第2期10-14,共5页
AIM: To assess the presence of nerves in ventral facet joint capsules as facet capsules are generally implicated in neck pain.METHODS: Twenty-four ventral cervical facet joint capsules were harvested from 3 unembalmed... AIM: To assess the presence of nerves in ventral facet joint capsules as facet capsules are generally implicated in neck pain.METHODS: Twenty-four ventral cervical facet joint capsules were harvested from 3 unembalmed cadavers. Paraffin sections from these capsules were processed to identify neurofilament and substance P immunoreactive fibers. Nerve fiber presence was also verified by a silver impregnation method.RESULTS: Neurofilament reactive fibers were observed in sections from 9 capsules. They were observed in areas with collagen fibers and areas with irregular connective tissue. Substance P reactive nerve fibers were found in sections from 7 capsules in similar areas. Silver impregnation also revealed the presence of nerve fibers. The nerve fibers were also found as bundles in the lateral margins of the capsule. A Pacinian corpuscle-like ending was also observed in onespecimen.CONCLUSION: Nerve fibers revealed by neurofilament immunoreactivity and silver staining support innervation of the ventral aspect of the facet joint capsule. The presence of substance P reactive fibers supports the potential role of these elements in mediating pain. The presence of a Pacinian-like ending implicates a potential role in joint movement. 展开更多
关键词 CERVICAL facet joint CAPSULE whiplash Nerve fibers NEUROFILAMENT Substance P Pain
下载PDF
A Reflection on the Management and Treatment of Cervical Spine Neuropathies with East Asian Medicine:Acupuncture 被引量:1
6
作者 Jane Frances Wilson 《Chinese Journal of Integrative Medicine》 SCIE CAS 2013年第6期403-408,共6页
There is much material demonstrating the use of acupuncture and moxibustion as an effective method of treatment in a variety of neurological conditions involving both peripheral and central nervous system dysfunction.... There is much material demonstrating the use of acupuncture and moxibustion as an effective method of treatment in a variety of neurological conditions involving both peripheral and central nervous system dysfunction. Acupuncture's effects are experienced throughout the body but specifically acupuncture can be seen to contribute significantly to nerve metabolism and rebuilding. However, very little is written on the mechanisms for this nerve recovery. This paper will reflect on these mechanisms in relation to the treatment of neck problems associated with nerve root impingement. 展开更多
关键词 cervical pain neck injuries nerve tissue injuries acupuncture therapy whiplash injuries Jin/sinews
原文传递
基于DOE的座椅鞭打试验优化分析 被引量:3
7
作者 刘高 王敏 《汽车实用技术》 2019年第9期146-148,共3页
文章根据2018版C-NCAP低速后碰撞颈部保护试验("鞭打试验")相关规程,利用Hypermesh软件建立某整车项目主驾座椅的仿真模型。基于初版分析结果,运用DOE(试验设计)技术,通过调整座椅的相关设计参数,快速确定座椅结构优化方向,... 文章根据2018版C-NCAP低速后碰撞颈部保护试验("鞭打试验")相关规程,利用Hypermesh软件建立某整车项目主驾座椅的仿真模型。基于初版分析结果,运用DOE(试验设计)技术,通过调整座椅的相关设计参数,快速确定座椅结构优化方向,以达到客户鞭打试验4.5分需求。 展开更多
关键词 鞭打试验 仿真 DOE 优化
下载PDF
座椅设计参数对低速尾撞中乘员颈部伤害影响的仿真研究 被引量:2
8
作者 罗萌 周青 《汽车技术》 北大核心 2006年第z1期41-45,共5页
在MADYMO环境下建立包括座椅、座椅安全带、BIORIDⅡ假人的尾撞仿真模型,应用MADYMO及AUTODOE对座椅设计参数及座椅平动吸能机制对低速尾撞中乘员颈部损伤指标的影响进行了研究。模拟结果表明,座椅靠背铰旋转刚度、椅背屈服力矩、椅背... 在MADYMO环境下建立包括座椅、座椅安全带、BIORIDⅡ假人的尾撞仿真模型,应用MADYMO及AUTODOE对座椅设计参数及座椅平动吸能机制对低速尾撞中乘员颈部损伤指标的影响进行了研究。模拟结果表明,座椅靠背铰旋转刚度、椅背屈服力矩、椅背接触刚度等参数对乘员头颈部响应的影响显著,通过适当的座椅参数设计可以达到降低尾撞中乘员损伤几率的目的。同时,座椅整体平动吸能对座椅尾撞安全性能的提高也在模拟中得到了验证。 展开更多
关键词 尾撞 座椅 颈部伤害 挥鞭伤
下载PDF
乒乓球“抖动式”发球的运动生物力学分析 被引量:3
9
作者 谢冬兴 《南京体育学院学报(自然科学版)》 2013年第4期22-27,33,共7页
动作技术生物力学原理的建立过程,是一个复杂的创造性思维与实践过程。以2004年雅典奥运会乒乓球比赛中,柳承敏的发球为背景素材,结合运动生物力学与运动解剖学的相关理论,揭示"抖动式"发球的动作技术原理。依据发球动作的任... 动作技术生物力学原理的建立过程,是一个复杂的创造性思维与实践过程。以2004年雅典奥运会乒乓球比赛中,柳承敏的发球为背景素材,结合运动生物力学与运动解剖学的相关理论,揭示"抖动式"发球的动作技术原理。依据发球动作的任务与性质,将"抖动式"发球技术分为抛球引拍阶段、挥拍加速制动阶段、挥拍鞭打阶段、挥拍轨迹拐点提肩阶段。以加速制动点、鞭打点、挥拍轨迹拐点为动作技术特征画面,分析挥拍加速制动阶段、挥拍鞭打阶段以及挥拍轨迹拐点基本力学特征与动作质量。最后,阐述了"抖动式"发球对提升发球爆发力与增强发球迷惑性的动作技术的基本规律。 展开更多
关键词 柳承敏 “抖动式”发球 挥拍轨迹 加速制动 鞭打 “V”形
下载PDF
Assessment of the Biological Damage in Whiplash Syndrome: Role of Digital Infrared Thermal Imaging (DITI) and Ultrasonography (US)
10
作者 Gian Carlo Parenti Enzo Gualtieri +2 位作者 Francesco Fontana Aleardo Benelli Fabrizio Albarello 《Open Journal of Radiology》 2013年第4期222-230,共9页
Objectives: To compare DITI vs US in a cohort of patients with whiplash syndrome for assessing soft tissues injuries of the cervical and dorsal spine. Methods: 70 patients presenting to clinic with traumatic cervical ... Objectives: To compare DITI vs US in a cohort of patients with whiplash syndrome for assessing soft tissues injuries of the cervical and dorsal spine. Methods: 70 patients presenting to clinic with traumatic cervical and/or dorsal spine injury and with a clinical diagnosis of whiplash syndrome underwent both DITI (AVIO TVS 2000) and US (GE Logic 5) of the following muscles: sternocleidomastoid, splenius, trapezius, longus colli and paravertebral muscles. DITI considered positive in the region with the most altered temperature among the injured area examinated (normal range 0℃ - 0.8℃). US valued the cervical and dorsal region with a comparative examination of the soft tissues. The images taken with DITI were compared with the clinical and the sonographic outcomes respectively. US and DITI were considered a) congruent whether both had a positive outcome for the same muscle clinically injured;b) not congruent whether one of the two instruments had a different outcome then the clinical evidence. Wilcoxon paired test was used for statistical analysis. Results: DITI and US matched 153 of 233 (65%) injured muscles. The association between DITI and US in the evaluation of the injured muscles was statistically significant for the following muscles: left trapezius (p Conclusions: According to our preliminary study, DITI and US were both helpful for assessing soft tissues injuries in patients with whiplash syndrome, defining the extent of the biologic damage for a correct clinical-therapeutical management. 展开更多
关键词 whiplash SYNDROME DIGITAL Infrared Termography Imaging Ultrasongraphy LEGAL MEDICINE
下载PDF
Predictive Factors for Persistent Pain and Poor Recovery of Health Status 1 Year after Whiplash Injury (Quebec Grade 1 and 2): Results from the ESPARR Cohort
11
作者 Inès Khati Laetitia Chossegros +4 位作者 Pierrette Charnay Hélène Tardy Anne-Laure Perrine Bernard Laumon Martine Hours 《Pain Studies and Treatment》 2014年第2期36-49,共14页
Background: A large number of studies have addressed whiplash injury, and many meta-analyses have sought to highlight chronicity factors;the implicated processes, however, remain a matter of debate. The present study ... Background: A large number of studies have addressed whiplash injury, and many meta-analyses have sought to highlight chronicity factors;the implicated processes, however, remain a matter of debate. The present study used data from the ESPARR cohort (an on-going prospective study of a representative cohort of road accident victims in the Rh?ne administrative département of France). The objectives were to describe the consequences of whiplash injury and to determine prognostic factors for poor recovery and persistent pain at 1 year post-accident. Methods: The cohort included 255 “pure” whiplash victims, 173 of whom responded to the 1-year follow-up questionnaire. Correlations between explanatory variables and health and pain status were explored by modified Poisson regression to provide adjusted relative risk (RR) values. Results: Half of the victims had not fully recovered health status by 1 year. The main factor associated with non-recovery was pain (RR = 1.3;1.0-1.7). A birth in the family preceding the accident emerged as another factor (RR=1.5;1.2-1.9). Victims responsible for their accident were twice as likely to report being free of pain as those not responsible (RR = 0.5;0.3-0.8). No correlation emerged with accident-related characteristics or PTSD. Conclusions: The present results extend our understand- ing of whiplash injury. Residual pain is the fundamental factor causing whiplash victims to feel that they have not recovered good health. Our findings suggest this may be bound up with physical factors (gender susceptibility);external factors such as having to carry weights (such as a baby) and with perceiving oneself as a victim are not incompatible with this hypothesis. 展开更多
关键词 whiplash One Year-Follow-up Recovered Health PAIN Predictive Factor
下载PDF
某车型座椅鞭打性能研究 被引量:2
12
作者 孔德伟 马良 +2 位作者 胡祥玲 师玉涛 杨劲松 《中国汽车》 2020年第5期4-9,共6页
自2018年7月1日18年版《C-NCAP管理规则》实施至今一年时间里,C-NCAP官方发布的四星及以上车辆座椅鞭打平均得分为4.26分,鞭打试验成绩仍然处于较低水平。针对这一现状,本文从试验角度对我司某款车型座椅鞭打试验数据进行详细分析总结,... 自2018年7月1日18年版《C-NCAP管理规则》实施至今一年时间里,C-NCAP官方发布的四星及以上车辆座椅鞭打平均得分为4.26分,鞭打试验成绩仍然处于较低水平。针对这一现状,本文从试验角度对我司某款车型座椅鞭打试验数据进行详细分析总结,通过控制头后间隙、调节靠背悬簧刚度,可有效提高NIC得分;通过提高座椅靠背骨架焊接强度、控制头枕高度,可有效提高上颈部My得分。本文对座椅的调节方法,为座椅鞭打性能的提升提供参考。 展开更多
关键词 C-NCAP 鞭打 NIC 上颈部My 头后间隙 头枕高度
原文传递
基于Thums人体模型追尾碰撞乘员损伤研究 被引量:2
13
作者 裴元津 华林 +2 位作者 谢书港 崔东 祁志楠 《武汉理工大学学报(交通科学与工程版)》 2017年第1期165-169,共5页
鞭打试验所采用的BioRID-2假人有其自身局限性,它不能直观地反映乘员韧带、脊椎和内脏等组织的伤害情况.从某座椅的鞭打试验入手,验证了该座椅有限元模型的准确性,并通过Thums人体模型与BioRID-2假人在试验过程中的姿态和部分输出曲线对... 鞭打试验所采用的BioRID-2假人有其自身局限性,它不能直观地反映乘员韧带、脊椎和内脏等组织的伤害情况.从某座椅的鞭打试验入手,验证了该座椅有限元模型的准确性,并通过Thums人体模型与BioRID-2假人在试验过程中的姿态和部分输出曲线对比,证明了其可靠性,并对Thums人体模型可能出现损伤的身体部位进行了伤害研究.结果表明,该座椅在鞭打试验中除颈部受伤以外,腰椎盘纤维环及下腹部位置的内脏也会有所损伤.利用与医学伤害标准比对的方法来验证了Thums人体模型的可靠性,并指出低速追尾碰撞存在的潜在伤害. 展开更多
关键词 鞭打试验 追尾碰撞 BioRID-2假人 Thums人体模型 伤害研究
下载PDF
《甩鞭》与《喊山》中的“身体” 被引量:1
14
作者 毛郭平 《山西大同大学学报(社会科学版)》 2012年第1期88-90,共3页
葛水平的小说《甩鞭》与《喊山》中将人的身体定位在熟人社会。这一社会中身体本身即能成为人们实现需求的方式和目的,无需任何的掩饰。但是身体却不能摆脱其所处位置——生理位置与文化空间的束缚。
关键词 身体 身体位置 生理位置 《甩鞭》 《喊山》
下载PDF
悬吊运动疗法对颈椎挥鞭样损伤患者的疗效分析 被引量:1
15
作者 张国兴 杨晓姗 《中国伤残医学》 2016年第12期5-6,共2页
目的:观察悬吊运动疗法对挥鞭样损伤后功能受限的疗效。方法:将22例挥鞭样损伤患者随机分为治疗组( n=11)和对照组( n=11),2组均给予物理因子治疗和针灸,除此之外,治疗组给予悬吊运动疗法。于治疗前、治疗后6周分别给予评估... 目的:观察悬吊运动疗法对挥鞭样损伤后功能受限的疗效。方法:将22例挥鞭样损伤患者随机分为治疗组( n=11)和对照组( n=11),2组均给予物理因子治疗和针灸,除此之外,治疗组给予悬吊运动疗法。于治疗前、治疗后6周分别给予评估颈部疼痛视觉模拟评分( VAS)、颈部残疾指数( Neck disability index )和恐惧-回避信念问卷评分( Fear-Avoidance Beliefs Questionnaire)。结果:经6周治疗后,组内治疗前后VAS、NDI及FABQ评分结果比较差异均具显著性( P<0.05);且治疗组与对照组治疗后结果比较有显著差异( P<0.05)。结论:在应用物理因子和针灸治疗的基础上给予悬吊运动疗法可以更好地改善挥鞭样损伤患者颈痛,同时也明显提高了患者日常生活活动能力。 展开更多
关键词 挥鞭样损伤 悬吊运动 颈痛 关节活动度
原文传递
Extended Impact of Cold Air Invasions in East Asia in Response to a Warm South China Sea and Philippine Sea
16
作者 Marco Y.-T.LEUNG Dongxiao WANG +1 位作者 Wen ZHOU Yuntao JIAN 《Advances in Atmospheric Sciences》 SCIE CAS CSCD 2023年第3期531-540,共10页
During boreal winter,the invasion of cold air can lead to remarkable temperature drops in East Asia which can result in serious socioeconomic impacts.Here,we find that the intensity of strong synoptic cold days in the... During boreal winter,the invasion of cold air can lead to remarkable temperature drops in East Asia which can result in serious socioeconomic impacts.Here,we find that the intensity of strong synoptic cold days in the East China Sea and Indochina Peninsula are increasing.The enhanced synoptic cold days in these two regions are attributed to surface warming over the South China Sea and Philippine Sea(SCSPS).The oceanic forcing of the SCSPS on the synoptic cold days in the two regions is verified by numerical simulation.The warming of the SCSPS enhances the baroclinicity,which intensifies meridional wind and cold advection on synoptic timescales.This leads to a more extended region that is subject to the influence of cold invasion. 展开更多
关键词 ocean warming extra-tropical cyclones BAROCLINICITY temperature whiplash
下载PDF
Biomechanics of whiplash injury 被引量:1
17
《Chinese Journal of Traumatology》 CAS 2009年第5期-,共10页
Despite a large number of rear-end collisions on the road and a high frequency of whiplash injuries reported, the mechanism of whiplash injuries is not completely understood. One of the reasons is that the injury is n... Despite a large number of rear-end collisions on the road and a high frequency of whiplash injuries reported, the mechanism of whiplash injuries is not completely understood. One of the reasons is that the injury is not necessarily accompanied by obvious tissue damage detectable by X-ray or MRI. An extensive series of biomechanics studies, including injury epidemiology, neck kinematics,facet capsule ligament mechanics, injury mechanisms and injury criteria, were undertaken to help elucidate these whiplash injury mechanisms and gain a better understanding of cervical facet pain. These studies provide the following evidences to help explain the mechanisms of the whiplash injury: (1) Whiplash injuries are generally considered to be a soft tissue injury of the neck with symptoms such as neck pain and stiffness, shoulder weakness, dizziness, headache and memory loss, etc. (2) Based on kinematical studies on the cadaver and volunteers, there are three distinct periods that have the potential to cause injury to the neck. In the first stage, flexural deformation of the neck is observed along with a loss of cervical lordosis; in the second stage, the cervical spine assumes an S-shaped curve as the lower vertebrae begin to extend and gradually cause the upper vertebrae to extend; during the final stage, the entire neck is extended due to the extension moments at both ends. (3)The in vivo environment afforded by rodent models of injury offers particular utility for linking mechanics, nociception and behavioral outcomes. Experimental findings have examined strains across the facet joint as a mechanism of whiplash injury, and suggested a capsular strain threshold or a vertebral distraction threshold for whiplash-related injury,potentially producing neck pain. (4) Injuries to the facet capsule region of the neck are a major source of post-crash pain. There are several hypotheses on how whiplash-associated injury may occur and three of these injuries are related to strains within the facet capsule connected with events early in 展开更多
关键词 whiplash injuries PAIN BIOMECHANICS NECK Zygapophysel joint
原文传递
某车型座椅鞭打试验性能优化方案研究
18
作者 王露 《轻型汽车技术》 2023年第7期56-60,72,共6页
本文着重分析了某车型驾驶员座椅在CNCAP2021版Whiplash试验中得分较低的原因,探讨了相关影响因素,并结合仿真分析手段确定了减少靠背后倾、提高靠背侵入量等优化方案,验证表明更改后的座椅鞭打性能得到了提高,为后续项目的座椅开发和... 本文着重分析了某车型驾驶员座椅在CNCAP2021版Whiplash试验中得分较低的原因,探讨了相关影响因素,并结合仿真分析手段确定了减少靠背后倾、提高靠背侵入量等优化方案,验证表明更改后的座椅鞭打性能得到了提高,为后续项目的座椅开发和改进提供了参考。 展开更多
关键词 鞭打试验 whiplash 颈部伤害指数 NIC
下载PDF
后排座椅防挥鞭伤设计方法 被引量:1
19
作者 徐凯 肖光 《汽车实用技术》 2015年第9期55-56,108,共3页
E-NCAP新车评价规程在前排鞭打(Whiplash)试验及评价要求基础上,引入了后排座椅Whiplash,将其作为加分项。基于后排Whiplash评分要求,提出极限法的设计方法,从而提高设计效率。
关键词 后排座椅 挥鞭伤 设计方法
下载PDF
Muscle activity during low-speed rear impact
20
作者 O'Driscoll Olive Magnusson Marianne +1 位作者 Pope Malcolm Henry Chow Daniel Hung-Kay 《Chinese Journal of Traumatology》 CAS CSCD 2019年第2期80-84,共5页
Purpose: Whiplash associated disorders remain a major health problem in terms of impact on health care and on societal costs. Aetiology remains con troversial including the old suppos ition that the cervical muscles d... Purpose: Whiplash associated disorders remain a major health problem in terms of impact on health care and on societal costs. Aetiology remains con troversial including the old suppos ition that the cervical muscles do not play a significant role. This study examined the muscle activity from relevant muscles during rear-end impacts in an effort to gauge their influence on the aetiology of whiplash associated disorders. Methods: Volunteers were subjected to a sub-injury level of rear impact. Surface electro my ogra phy (EMG) was used to record cervical muscle activity before, during and after impact. Muscle response time and EMG signal amplitude were analysed. Head, pelvis, and T1 acceleration data were recorded. Results: The activities of the cervical muscles were found to be significant. The sternocleidomastoideus, trapezius and erector spinae were activated on average 59 ms, 73 ms and 84 ms after the impact stimulus, respectively, prior to peak head acceleration (113 ms). Conclusion: The cervical muscles reacted prior to peak head accelerati on, thus in time to influe nee whiplash biomechanics and possibly injury mechanisms. It is recommended therefore, that muscular influences be incorporated into the development of the new rear-impact crash test dummy in order to make the dummy as biofidelic as possible. 展开更多
关键词 ELECTROMYOGRAPHY NECK muscles whiplash IMPACT SLED CRASH dummies
原文传递
上一页 1 2 10 下一页 到第
使用帮助 返回顶部