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中印科技合作项目“TMT拼接子镜系统”研制通过验收（图）
中印科技 TMT拼接子镜系统 通过验收 天文光学
2018/4/24
2018年4月12日，国家国际科技合作专项“TMT拼接子镜系统研制中印科技合作”项目通过专家组验收。验收会由科技部国际合作司委托中国科学技术交流中心组织。国家天文台南京天文光学技术研究所针对巨型光学望远镜拼接子镜提出了批量化磨制离轴非球面新方法，可显著缩短研制周期、减低造价。在该项目合作中，南京天光所取得了多项具有自主知识产权的新技术，探索了光学加工90面对角直径为1.44米的六角形非球面拼接子镜...
针对莱钢3200m3高炉TMT开口机应用中存在的凿岩机吊挂螺栓松动脱落、油管频繁烧坏等问题，对凿岩机的吊挂进行加固，自制围风管有效地保护了旋转钢角，开口机前挡板U型孔改为圆形，优化后的开口机保证了开铁口的准确性与及时性，每年可节约维修成本约150万元。
TMT三镜动力学模型辨识与标校
TMT 三镜 动力学模型 传递函数 随机减量
2016/8/4
为了更好地对于30 m望远镜三镜(TMT M3)的动力学进行度量与检测,基于加速度信号建立了系统模态信息的计算与评价方法。首先,分析了如何利用加速度计对于TMT三镜系统进行检测。之后,利用系统对于未知载荷的响应,基于随机减量法获得了系统的自由响应;之后,根据多项式拟合的方法,对于获得的传递函数进行处理。根据之前所提出的方法,对于4 m级系统,获得了其系统前两阶模态为88 Hz以及107 Hz,并获...
Thermal Analysis of the TMT Telescope Structure
telescope structure thermal analysis environment data temperature distributions
2015/5/13
Thermal performances of the Thirty Meter Telescope (TMT) structure were evaluated by finite element thermal models.
The thermal models consist of the telescope optical assembly systems, instruments,...
Thermal modeling environment for TMT
Extremely Large Telescopes Thermal Modeling Computational Fluid Dynamics
2015/5/13
In a previous study we had presented a summary of the TMT Aero-Thermal modeling effort to support thermal seeing
and dynamic loading estimates. In this paper a summary of the current status of Compu...
Primary mirror dynamic disturbance models for TMT: Vibration and wind
Extremely Large Telescopes Wind Vibration Control Systems
2015/5/13
The principal dynamic disturbances acting on a telescope segmented primary mirror are unsteady wind pressure
(turbulence) and narrowband vibration from rotating equipment. Understanding these disturb...
Thermal Performance Prediction of the TMT Telescope Structure
telescope structure thermal analysis temperature distributions thermo-elastic analysis
2015/5/12
Thermal analysis for the Thirty Meter Telescope (TMT) structure was performed using finite element analysis in
ANSYS and I-DEAS. In the thermal analysis, the telescope structural parts with simplifi...
Dynamic disturbance sources affecting the optical performance of the Thirty Meter Telescope (TMT) include
unsteady wind forces inside the observatory enclosure acting directly on the telescope ...
MONTE CARLO SIMULATION FRAMEWORK FOR TMT
Extremely Large Telescopes Performance Modeling Statistical Modeling
2015/5/12
This presentation describes a strategy for assessing the performance of the Thirty Meter Telescope (TMT). A Monte
Carlo Simulation Framework has been developed to combine optical modeling with Compu...
Performance Prediction of the TMT Secondary Mirror Support System
Secondary mirror mirror performance mirror support optimization
2015/5/12
The optical systems of TMT have stringent requirements to achieve scientific goals. The M2M support system was
optimized to meet the requirements defined in “TMT Image Size and Wavefront Error Budge...
Thermal Performance Prediction of the TMT Optics
thermal models temperature distributions thermo-elastic analysis
2015/5/12
Thermal analysis for the Thirty Meter Telescope (TMT) optics (the primary mirror segment, the secondary mirror, and
the tertiary mirror) was performed using finite element analysis in ANSYS and I-DE...
ADVANCES IN AEROTHERMAL MODELING FOR TMT
Extremely Large Telescopes Thermal and Aerodynamic Modeling Computational Fluid Dynamics
2015/5/12
The performance requirements of the Thirty Meter Telescope (TMT) dictate, among others, a thorough understanding of
the flow field inside and around the observatory. Mirror and dome seeing as well a...
TMT Early Light Adaptive Optics.
Chinese Interests and Capabilities: Engineering Contributions to TMT Instrumentations
Interests Capabilities
2015/5/12
Chinese Interests and Capabilities: Engineering Contributions to TMT Instrumentations.
The TMT Instrumentation Program.