The Rune of Trr is a symbol that holds significant meaning in Norse mythology. It is an ancient runic symbol that represents the essence of strength, resilience, and determination. The rune itself resembles the letter "T" with an additional line extending downwards from the center. In Norse mythology, the Rune of Trr is often associated with the goddess Trr, who is renowned for her incredible physical strength and unwavering dedication. Trr is considered to be one of the most powerful deities in Norse mythology, known for her role as the guardian of justice and order. The Rune of Trr is often interpreted as a symbol of inner strength and the ability to overcome obstacles.
The Rune of Trr is often interpreted as a symbol of inner strength and the ability to overcome obstacles. It is believed to empower individuals and provide them with the resilience necessary to face challenges head-on. The additional line extending downwards from the center of the rune is seen as representing rootedness and stability, grounding individuals in their strength.
RUNE - Reusable and Non-Explosive Actuator for Hold Down and Release Mechanisms
The project aims to develop, build and test a fully-reusable non-explosive actuator for hold-down and release mechanism, with a preload capacity of 10 kN. The Engineering Model has been built with representative materials and processes, and tested in representative conditions, corresponding to TRL5.
The project focused both on the release actuator and preload assembly, providing a generic actuator design that can be implemented for different platforms and applications.
The scope of activities for the RUNE mechanism is performed under a joint EM/QM approach. The mechanism is developed as a qualification model (QM) up to CDR, while the production, assembly and testing are carried on an engineering model (EM).
ChallengesFour critical parameters for the development of the mechanism are identified:
Reliability, self-generated release shock, reusability and release time (repeatability and simultaneity). These parameters guide the development of RUNE. From the start of the project, three features are identified as highly desirable: ultra-low self-generated shock and reusability.
Also of concern during the development process was the need to avoid any pre-existing intellectual property rights. A large number of existing patents in the field has been analysed in order to steer the development process away from previously patented concepts, and ensure patentability of the present concept. This adds additional constraints on the design space to an ambitious fast-acting ultra-low-shock reusable design.
BenefitsRUNE is a fast-acting, fully re-usable, ultra-low shock HDRM, enabling a discrete point separation.
Self-generated release shock
HDRM are characterized with respect to their self-generated Shock Response Spectrum (SRS) peak: RUNE releases Ultra-Low Shock ( during its operation.
Re-usability & Resettability
Assembly, Integration and test (AIT) procedures require multiple HDRM releases, and are greatly simplified when re-usable HDRM are employed. The re-usability of an HDRM is thus a key feature with respect to its implementation in space systems. RUNE is fully reusable (i.e., resettable); Furthermore, its operation requires access from only one side of the mechanism (the HDPA bolt side, the same side used to torque the HDPA bolt).
Release Time (Repeatability & Simultaneity)
Time-critical releases and multi point simultaneous releases require reliable and repeatable releases, with minimal scattering (dispersion) of individual release times, even for HDRMs at different temperature. RUNE is a fast-acting mechanism with low actuation time scatter.
FeaturesRUNE releases Ultra-Low Shock during its operation:
- The Shock Response Spectrum (SRS) peaks are below 50g for axial, horizontal and vertical directions, during a 10 kN preload release.
RUNE is easy to use:
- The mechanism is fully reusable (i.e., resettable). The mechanism reset operation is performed by one operator in less than a minute.
RUNE is a fast-acting mechanism with low actuation time scatter:
- The initiation time is between 10 ms and 60 ms (depending on initiation current and the extremes of the operational temperature range: +85 ºC / -50 ºC)
- The total actuation time is between 55 ms and 180 ms (depending on initiation current and the extremes of the operational temperature range: +85 ºC / -50 ºC)
- At ambient conditions the mechanism’s total actuation time is on average 105 ms, with a maximum measured scatter of 17 ms.
RUNE uses standard pyrotechnic electric signals (26V-40V, 4.1A 30ms pulse nominal). Its dimensions are approximately 42mm diameter per 40mm height, and it weighs 208g.
System ArchitectureThe RUNE mechanism is a discrete point separation device of generic type, i.e. independent from any specific application. Its design is scalable in order to widen as much as possible the range of potential applications and preloads.
RUNE’s functionality is provided by five basic elements:
Force
Magnitude
Elements
Description
Initiator
Converts electrical energy from the release actuation pulse into mechanical energy usable by the latch elements.
Latch
Maintains the HDRA in the secured configuration; up to reception of the release actuation signal by the Initiator.
Force
Reduction
Effective force reduction elements are crucial for reliable synchronous ultra-low shock HDRA designs. These provide the necessary leverage and load-uncoupling, between the high forces present at the hold-down preload assembly (HDPA) and the coupling elements, down to the low-energy initiator at the latch.
Preload
Relief
Mechanical elements that reduce the HDPA preload immediately before releasing the HDPA bolt member. This feature is not effective in all existing HDRA, but RUNE includes it in its design in order to reduce the self-generated shock during release.
Coupling
Mechanical elements that interface and secure the HDPA bolt, or an adaptor on the HDPA.
The force reduction elements form the backbone of RUNE, and are based in Euler (capstan) friction provided by a cable which wraps around a cylindrical body while constraining the coupling elements. In conjunction with the used coupling elements, this provides the required load uncoupling and provides a very effective preload relief function.
The high force reduction achieved enables the use of low mass and volume SMA initiator, while maintaining the electrical requirements of existing pyro lines (current, voltage and pulse times).
PlanAll the planned milestones of the project are completed: Preliminary design review (PDR), detailed design review (DDR), test readiness review (TRR) and the post-test review (PTR).
The scope of activities for the RUNE mechanism is performed under a joint EM/QM approach. The mechanism is developed as a qualification model (QM) up to DDR, while the production, assembly and testing are carried on an engineering model (EM).
As part of the activity’s initially planned tasks, an implementation plan is defined, laying forth the future activities required for the completion of:
- Successful qualification testing of a QM.
- Development up to a commercially available product and the delivery of a FM
A QM/EM RUNE mechanism has been designed, manufactured and tested in representative conditions. The mechanism is developed as a qualification model (QM) up to DDR, and the production, assembly and testing are carried on an engineering model (EM).
The mechanism was designed, produced and assembled, and performed successfully in all the planned tests.
Tiwaz is the rune of success when things are right and just. the arrow points to the strong focus that’s needed to reach your success. Concentrate positive energy in one direction.
In ancient times, warriors would often inscribe the Rune of Trr on their weapons or armor to invoke the strength of Trr in battle. It was believed that carrying the symbol would provide them with the courage and determination needed to emerge victorious. Today, the Rune of Trr continues to be recognized as a symbol of strength and resilience. Many individuals choose to incorporate the rune into various aspects of their lives, such as tattoos or jewelry, to serve as a personal reminder of their own inner power and ability to overcome challenges. Overall, the Rune of Trr holds great significance in Norse mythology and continues to be revered as a symbol of strength, resilience, and determination. It serves as a reminder to individuals of their own inner power and the ability to overcome any obstacles that may come their way..
Reviews for "Using Rune of Trr for Prosperity and Abundance"
1. Sophia - 2/5 stars - I was really disappointed with "Rune of trr". The storyline was confusing and hard to follow, with too many unnecessary subplots and random twists that added nothing to the overall plot. The characters were poorly developed and lacked depth, making it difficult to connect or care about their fates. The writing style was also lackluster, with repetitive phrases and cliched dialogue. Overall, this book did not live up to my expectations and I wouldn't recommend it.
2. John - 1/5 stars - I couldn't finish "Rune of trr". The pacing was incredibly slow, and the story seemed to drag on without any true purpose. The world-building was lacking, leaving many questions unanswered and making it hard to fully immerse myself in the story. The main character was also unlikeable and made questionable decisions throughout, which made it hard to root for them. I found myself bored and uninterested, leading me to abandon this book before reaching the end.
3. Emma - 2/5 stars - I found "Rune of trr" to be extremely predictable. The twists and turns that were supposed to be shocking were easily guessed early on, making the plot feel stale and unoriginal. The writing itself was also lackluster, lacking any prose or literary flair. The dialogue was often cheesy and forced, making it hard to take the story seriously. Overall, this book failed to captivate me or offer any surprises, and I would not recommend it to others.
4. Michael - 3/5 stars - "Rune of trr" had an interesting concept, but it fell short in its execution. The storytelling felt rushed, with important plot points and character development glossed over or brushed aside. The world-building was also underdeveloped, leaving many gaps in the reader's understanding of the setting. While there were some entertaining moments and the potential for a great story, the lack of depth and detailed exploration left me unsatisfied. I was left wanting more from this book, and it didn't quite deliver.
5. Laura - 2/5 stars - I was expecting a lot from "Rune of trr", but unfortunately, it didn't deliver. The pacing felt off, with scenes that dragged on for too long and others that felt rushed and unresolved. The characters lacked depth and felt one-dimensional, making it hard to empathize or connect with any of them. The world-building was also lacking, with minimal descriptions and an overall lack of atmosphere. I had high hopes for this book, but I was left feeling unimpressed and let down.