做數據挖掘的朋友們都知道，數據是研究的基本，獲得一份有權威的原始數據是科學實驗成功的前提。
而NASA作為世界頂端的機構，他們的數據用來做PHM的研究所得出的結果肯定是具有非凡的說服力度的，在這裡有想跟大家交流一下下嘍！這裡的15個數據集：
Experiments were conducted on 3 small raceways in which spirulina was inoculated. The growth and，ultimately，decline of the algae biomass was recorded along with a number of environmental parameters. Experiments were conducted by the Exobiology group at NASA Ames.
美國NASA艾姆斯研究中心
Run-to-failure experiments were run on CFRP panels with periodic measurements to capture internal damage growth under tension-tension fatigue. Monitoring data consist of lamb wave signals from a network of 16 piezoelectric (PZT) sensors and multiple triaxial strain gages. Additionally，periodic x-rays were taken to characterize internal damage as ground truth information. Three different layups were tested. Experiments were conducted at Stanford Structures and Composites Laboratory (SACL) in collaboration with the Prognostic Center of Excellence (PCoE) of NASA Ames Research Center.
Dataset is organized into three zipped folders each containing data from coupons of single layup type and includes a readme file，and a folder with reports and papers published from this dataset.
美國航空航天局艾姆斯研究中心
Experiments on a milling machine for different speeds，feeds，and depth of cut. Records the wear of the milling insert，VB. The data set was provided by the BEST lab at UC Berkeley.
The set is in .mat format and has been zipped.
美國航空航天局艾姆斯研究中心
Experiments on bearings. The data set was provided by the Center for Intelligent Maintenance Systems (IMS)，University of Cincinnati.
The set is in text format and has been rared，then zipped.
Experiments on Li-Ion batteries. Charging and discharging at different temperatures. Records the impedance as the damage criterion. The data set was provided by the Prognostics CoE at NASA Ames.
The set is in .mat format and has been zipped.
Engine degradation simulation was carried out using C-MAPSS. Four different were sets simulated under different combinations of operational conditions and fault modes. Records several sensor channels to characterize fault evolution. The data set was provided by the Prognostics CoE at NASA Ames.
The set is in text format and has been zipped including a readme file.
Data from the data challenge competition held at the 1st international conference on Prognostics and Health Management (PHM08) is being made publicly available. The dataset is similar to the one posted above (see Turbofan engine degradation simulation data set) except the true RUL values are not revealed. Users are expected to develop their algorithms using training and test sets provided in the package. The data set was provided by the Prognostics CoE at NASA Ames.Evaluate your results on test data set using the link below.Upload file for analysisNote:-Results should be formatted as a column vector of RULs in a text file.-Evaluation of the test data is limited to only one trial per day.-Best test score result still stands at 436.84 (but note that good performance in the test score does not guarantee good performance on the validation set – the person with the best test score ranked 22nd on the validation set).-Best score on the validation set stands at 5636.06 (as stated in the readme file，you need to submit your RUL vector to the email indicated in the document)-See Ramasso et al. for a comparison of approaches and leader scores.
The set is in text format and has been zipped including a readme file.
Preliminary data from thermal overstress accelerated aging using the aging and characterization system. The data set contains aging data from 6 devices，one device aged with DC gate bias and the rest aged with a squared signal gate bias. Several variables are recorded and in some cases，high-speed measurements of gate voltage，collector-emitter voltage and collector current are available. The data set is provided by the Prognostics CoE at NASA Ames
The set is in Matlab and text format and has been compressed.
Trajectories of different types of balls launched from a trebuchet with varying counter weights. Flights were filmed and extraction routines calculated position of data. Both raw video data and extracted trajectories are provided. Geometry and physical properties of the trebuchet are available.
Experiments on bearings’ accelerated life tests provided by FEMTO-ST Institute，Besançon，France.
Batteries are continuously cycled with randomly generated current profiles. Reference charging and discharging cycles are also performed after a fixed interval of randomized usage in order to provide reference benchmarks for battery state of health.
Capacitors were subjected to electrical stress under three voltage levels i.e 10V，12V and 14V. Data Set contains EIS data as well as Charge/Discharge Signal data.
Run-to-failure experiments on Power MOSFETs under thermal overstress.
Capacitors were subjected to electrical stress at 10V. 電容器在10V承受電應力。
The set is in .mat format and has been zipped.
Battery Data collected from the Experiments on the Edge 540 Aircraft in HIRF Chamber.
The set is in .mat format and has been zipped.