febrile
发表于 2025-3-30 10:31:09
Orion MPCV E-STA Nonlinear Dynamics Uncertainty Factors,monstrated significant nonlinear behaviors and response deviation from pre-test finite element analysis (FEA). A linear FEA correlation effort, previously performed in 2017, resulted in the creation of two finite element models (FEM) – one correlated to high-load level swept sine responses and one c
rheumatism
发表于 2025-3-30 12:38:42
The Vibration and Acoustic Effects of Prop Design and Unbalance on Small Unmanned Aircraft, of sUAS or drones is becoming ever more popular for hobbyists, as well as in commercial and military operations, and the influence of props on the vibration and acoustic environment are of interest. Many types of props are available for use on sUAS that promise extended run times, increased perform
荣幸
发表于 2025-3-30 16:47:08
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可忽略
发表于 2025-3-30 20:57:20
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SIT
发表于 2025-3-31 01:34:42
Space Launch System Mobile Launcher Modal Pretest Analysis,t this capability, an updated ground infrastructure is required including modifying an existing Mobile Launcher system. The Mobile Launcher is a very large heavy beam/truss steel structure designed to support the Space Launch System during its buildup and integration in the Vehicle Assembly Building
分发
发表于 2025-3-31 07:15:34
Feasibility Study to Extract Artemis-1 Fixed Base Modes While Mounted on a Dynamically Active Mobiled on the mobile launcher (ML). While the goal of the test is to characterize the Artemis-1, the inclusion of the ML as the support stand for the test means that the entire system must be well characterized. A considerable amount of effort and schedule will have to be devoted to understanding both t
Anticlimax
发表于 2025-3-31 12:52:29
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Redundant
发表于 2025-3-31 15:31:48
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Hypomania
发表于 2025-3-31 18:27:15
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indicate
发表于 2025-3-31 21:43:32
Parametric Analysis and Voltage Generation Performance of a Multi-directional MDOF Piezoelastic Vibbeam model under base driven motion. The main focus of this paper is to perform a parametric analysis of multi degrees of freedom piezo-elastic energy harvester to optimize the capability curve exploiting crossing/veering between modes. The structure under test consists of a combination of slender b