Six-Bullets Faith

At a religious school of unspecified denomination—but definitely NOT Catholic—two women fall in love. One of them has a chainsaw, the other a gun. There’s also a horny parrot, a horny pastor and a senile mother, not to mention Lucifer, who is a bit of a teenage girl and a HUGE Billie Eilish fan. And the end of the Universe is coming, FYI, via the Big Rip, so there’s that too. And this play is also about addiction and withdrawal and recovery and the capacity or incapacity for love to overcome forces that can overwhelm the self

First Person Plural: Short Stories

I decided to title this collection First Person Plural after observing that one of the most prominent motifs common among these stories concerns the instability and multiplicity of identity. Horror is one of the traditions that most influences my writing, particularly the claustrophobic psychological horror of writers like Edgar Allen Poe. I mainly deploy the tropes of horror in an effort to destabilize my characters’ inner and outer realities. Another important influence on my writing has been that brand of fiction which exists within the liminal space between horror and realism, such as Dan Chaon’s collection Stay Awake, Bringing Out the Dead by Joe Connelly and Joyce Carol Oates’s “Where is Here?” That’s the realm where some of my stories exist, where the metaphors of horror collapse on themselves and reveal what they’re designed to represent and conceal. As a writer, one of my goals/challenges is to make cliches less cliche, to find new ways of telling familiar stories and invent conventions for telling unfamiliar ones. For each story in this collection, I attempted to identify and employ whichever conventions promised to best help me tell it in an unconventional and hopefully more effective way

Ares I-X Launch Vehicle Modal Test Measurements and Data Quality Assessments

The Ares I-X modal test program consisted of three modal tests conducted at the Vehicle Assembly Building at NASA s Kennedy Space Center. The first test was performed on the 71-foot 53,000-pound top segment of the Ares I-X launch vehicle known as Super Stack 5 and the second test was performed on the 66-foot 146,000- pound middle segment known as Super Stack 1. For these tests, two 250 lb-peak electro-dynamic shakers were used to excite bending and shell modes with the test articles resting on the floor. The third modal test was performed on the 327-foot 1,800,000-pound Ares I-X launch vehicle mounted to the Mobile Launcher Platform. The excitation for this test consisted of four 1000+ lb-peak hydraulic shakers arranged to excite the vehicle s cantilevered bending modes. Because the frequencies of interest for these modal tests ranged from 0.02 to 30 Hz, high sensitivity capacitive accelerometers were used. Excitation techniques included impact, burst random, pure random, and force controlled sine sweep. This paper provides the test details for the companion papers covering the Ares I-X finite element model calibration process. Topics to be discussed include test setups, procedures, measurements, data quality assessments, and consistency of modal parameter estimates

Finite Element Model Calibration Approach for Area I-X

Ares I-X is a pathfinder vehicle concept under development by NASA to demonstrate a new class of launch vehicles. Although this vehicle is essentially a shell of what the Ares I vehicle will be, efforts are underway to model and calibrate the analytical models before its maiden flight. Work reported in this document will summarize the model calibration approach used including uncertainty quantification of vehicle responses and the use of non-conventional boundary conditions during component testing. Since finite element modeling is the primary modeling tool, the calibration process uses these models, often developed by different groups, to assess model deficiencies and to update parameters to reconcile test with predictions. Data for two major component tests and the flight vehicle are presented along with the calibration results. For calibration, sensitivity analysis is conducted using Analysis of Variance (ANOVA). To reduce the computational burden associated with ANOVA calculations, response surface models are used in lieu of computationally intensive finite element solutions. From the sensitivity studies, parameter importance is assessed as a function of frequency. In addition, the work presents an approach to evaluate the probability that a parameter set exists to reconcile test with analysis. Comparisons of pretest predictions of frequency response uncertainty bounds with measured data, results from the variance-based sensitivity analysis, and results from component test models with calibrated boundary stiffness models are all presented

Finite Element Model Calibration Approach for Ares I-X

Ares I-X is a pathfinder vehicle concept under development by NASA to demonstrate a new class of launch vehicles. Although this vehicle is essentially a shell of what the Ares I vehicle will be, efforts are underway to model and calibrate the analytical models before its maiden flight. Work reported in this document will summarize the model calibration approach used including uncertainty quantification of vehicle responses and the use of nonconventional boundary conditions during component testing. Since finite element modeling is the primary modeling tool, the calibration process uses these models, often developed by different groups, to assess model deficiencies and to update parameters to reconcile test with predictions. Data for two major component tests and the flight vehicle are presented along with the calibration results. For calibration, sensitivity analysis is conducted using Analysis of Variance (ANOVA). To reduce the computational burden associated with ANOVA calculations, response surface models are used in lieu of computationally intensive finite element solutions. From the sensitivity studies, parameter importance is assessed as a function of frequency. In addition, the work presents an approach to evaluate the probability that a parameter set exists to reconcile test with analysis. Comparisons of pre-test predictions of frequency response uncertainty bounds with measured data, results from the variance-based sensitivity analysis, and results from component test models with calibrated boundary stiffness models are all presented

Ares I-X Flight Test Vehicle:Stack 1 Modal Test

Ares I-X was the first flight test vehicle used in the development of NASA s Ares I crew launch vehicle. The Ares I-X used a 4-segment reusable solid rocket booster from the Space Shuttle heritage with mass simulators for the 5th segment, upper stage, crew module and launch abort system. Three modal tests were defined to verify the dynamic finite element model of the Ares I-X flight test vehicle. Test configurations included two partial stacks and the full Ares I-X flight test vehicle on the Mobile Launcher Platform. This report focuses on the second modal test that was performed on the middle section of the vehicle referred to as Stack 1, which consisted of the subassembly from the 5th segment simulator through the interstage. This report describes the test requirements, constraints, pre-test analysis, test operations and data analysis for the Ares I-X Stack 1 modal test

Ares I-X Launch Vehicle Modal Test Overview

The first test flight of NASA's Ares I crew launch vehicle, called Ares I-X, is scheduled for launch in 2009. Ares IX will use a 4-segment reusable solid rocket booster from the Space Shuttle heritage with mass simulators for the 5th segment, upper stage, crew module and launch abort system. Flight test data will provide important information on ascent loads, vehicle control, separation, and first stage reentry dynamics. As part of hardware verification, a series of modal tests were designed to verify the dynamic finite element model (FEM) used in loads assessments and flight control evaluations. Based on flight control system studies, the critical modes were the first three free-free bending mode pairs. Since a test of the free-free vehicle is not practical within project constraints, modal tests for several configurations in the nominal integration flow were defined to calibrate the FEM. A traceability study by Aerospace Corporation was used to identify the critical modes for the tested configurations. Test configurations included two partial stacks and the full Ares I-X launch vehicle on the Mobile Launcher Platform. This paper provides an overview for companion papers in the Ares I-X Modal Test Session. The requirements flow down, pre-test analysis, constraints and overall test planning are described

Ares I-X Flight Test Vehicle Modal Test

The first test flight of NASA's Ares I crew launch vehicle, called Ares I-X, was launched on October 28, 2009. Ares I-X used a 4-segment reusable solid rocket booster from the Space Shuttle heritage with mass simulators for the 5th segment, upper stage, crew module and launch abort system. Flight test data will provide important information on ascent loads, vehicle control, separation, and first stage reentry dynamics. As part of hardware verification, a series of modal tests were designed to verify the dynamic finite element model (FEM) used in loads assessments and flight control evaluations. Based on flight control system studies, the critical modes were the first three free-free bending mode pairs. Since a test of the free-free vehicle was not practical within project constraints, modal tests for several configurations during vehicle stacking were defined to calibrate the FEM. Test configurations included two partial stacks and the full Ares I-X flight test vehicle on the Mobile Launcher Platform. This report describes the test requirements, constraints, pre-test analysis, test execution and results for the Ares I-X flight test vehicle modal test on the Mobile Launcher Platform. Initial comparisons between pre-test predictions and test data are also presented

First Person Plural: Short Stories

I decided to title this collection First Person Plural after observing that one of the most prominent motifs common among these stories concerns the instability and multiplicity of identity. Horror is one of the traditions that most influences my writing, particularly the claustrophobic psychological horror of writers like Edgar Allen Poe. I mainly deploy the tropes of horror in an effort to destabilize my characters’ inner and outer realities. Another important influence on my writing has been that brand of fiction which exists within the liminal space between horror and realism, such as Dan Chaon’s collection Stay Awake, Bringing Out the Dead by Joe Connelly and Joyce Carol Oates’s “Where is Here?” That’s the realm where some of my stories exist, where the metaphors of horror collapse on themselves and reveal what they’re designed to represent and conceal. As a writer, one of my goals/challenges is to make cliches less cliche, to find new ways of telling familiar stories and invent conventions for telling unfamiliar ones. For each story in this collection, I attempted to identify and employ whichever conventions promised to best help me tell it in an unconventional and hopefully more effective way

First Person Plural: Short Stories

I decided to title this collection First Person Plural after observing that one of the most prominent motifs common among these stories concerns the instability and multiplicity of identity. Horror is one of the traditions that most influences my writing, particularly the claustrophobic psychological horror of writers like Edgar Allen Poe. I mainly deploy the tropes of horror in an effort to destabilize my characters’ inner and outer realities. Another important influence on my writing has been that brand of fiction which exists within the liminal space between horror and realism, such as Dan Chaon’s collection Stay Awake, Bringing Out the Dead by Joe Connelly and Joyce Carol Oates’s “Where is Here?” That’s the realm where some of my stories exist, where the metaphors of horror collapse on themselves and reveal what they’re designed to represent and conceal. As a writer, one of my goals/challenges is to make cliches less cliche, to find new ways of telling familiar stories and invent conventions for telling unfamiliar ones. For each story in this collection, I attempted to identify and employ whichever conventions promised to best help me tell it in an unconventional and hopefully more effective way