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- It presents the result of modal test and finite element analysis by MSC/Patran (Nastran) for a are structure. 研究了圆弧拱结构的模态试验结果及利用MSC/Patran(Nastran)有限元分析计算模态的结果。
- In the design process of the driving axle,it is difficult to determine the free modal of each parts and to avoid the "resonant zone" of the mechanical systems. 在驱动桥的设计过程中很难确定机构各部件之间的自由模态,机构的生产、应用往往出现机械系统本应避免的"共振区"。
- The frequency identification process is implemented by using the modal test data of the storehouse structure model. 并且，进行了贮仓结构的模态试验，实施了贮仓结构参数频域识别的全过程。
- Secondly, strain measure, modal test and LCF spin test were performed successfully. 其次，成功地完成了叶盘的应变测量、模态试验和低循环疲劳试验。
- Based on the modal test of XH7650 machining center with LDS,the nature frequency and vibration style were given. 使用LDS振动分析仪对XH7650立式加工中心进行模态测试,得到其固有频率及振型。
- The tire modal test and its application to the tire structure design were analysed,and a tire modal analysing test system was established. 分析了轮胎模态分析的试验方法及其在轮胎设计中的应用,并建立了轮胎模态分析试验系统。
- Analysis of natural vibration of a pre-stressed solar panel shows that the gravity has significant impact on ground modal test if the panel is hung laterally. 通过分析预应力作用下太阳能电池板的固有振动,发现重力对侧向悬挂的电池板地面模态试验结果存在影响。
- It showed that the modal test using hammer excitation method was successful.The method presented can give reference to the similar spatial structure's modal test. 这说明锤击法的模态试验是成功的，研究结果可为同类空间结构的模态试验分析提供参考。
- The composition and configuration of hardware and software for the multipoint excitation system and theoretical base and basic calculation of modal test technique are discussed. 综合论述了多点激振系统的硬件、软件的组成与配置，以及模态试验技术的理论依据和基本算法。
- Test engineers with experience in NVH, stress and fatigue testing, instrumentation, data acquisition, and data processing, as well as the modal test experience. 噪音和应力疲劳测试工程师必须具备传感器安装，数据采集，数据处理，和模态测试的经验。
- Aiming at a tractor with six cylinder engine,the vibration characteristics of powertrain are analyzed by using ODS method,the correctness of ODS analysis is validated through modal test. 针对某六缸发动机半挂牵引车,应用振动ODS方法分析了该动力总成的振动特性,并通过模态试验验证了振动ODS分析结果的正确性。
- Reading occupies most of my free time. 阅读占去了我大部分的闲暇时间。
- In this paper,the modal parameter is obtained from the datas of random vibration test of a trussed frame,and comparison with the results of the modal test is given.The feasibility of the i... 然后以桁架结构为例,通过随机振动试验数据求得模态参数,并与模态试验的结果相比较,证明该方法的可行性。
- Abstract: The composition and configuration of hardware and software for the multipoint excitation system and theoretical base and basic calculation of modal test technique are discussed. 文摘:综合论述了多点激振系统的硬件、软件的组成与配置，以及模态试验技术的理论依据和基本算法。
- Personage of the know the inside story inside course of study discloses, nominal is not represented freely free really. 业内知情人士透露，名义上的免费并不代表真的免费。
- Modal test was done on a cable-stayed structure in its healthy and two damaged conditions.Curvature of the Frequency Response Function (FRF) was used to detect the location of damage. 对一拉索结构的正常状态及两种损伤状态进行了模态测试，用频响函数的曲率来进行损伤检测。
- This is meant, the netizen still can download music freely freely from Baidu. 这意味着，网民仍可免费从百度上免费下载音乐。
- Ewins, D. J., 1986, Modal Testing: Theory and Practice, Research Studies Press LTD., Letchworth Hertfordshire, England. 徐灏，1994，概率疲劳，东北大学出版社，中国。
- The method put forward is confirmed to be feasible by comparison between two modal testing results of a ZJ15 model... 在ZJ15型钻机底座模型上进行的模态试验结果的对比分析,验证了方法的可行性。
- The crew remained free from scurvy. 那些船员仍然没有患坏血病之虞。
