Optimization design method of two-stage tandem bearing adapter ring based on mantis shrimp chela bionics

Abstract

The application discloses a two-stage series connection bearing adapter ring optimization design method based on a mantis shrimp foreclaw bionics, and relates to the technical field of engineering thermodynamics and statistical mechanics. The method comprises the following steps: analyzing the internal microstructure change of the mantis shrimp foreclaw after the foreclaw is impacted; analyzing and defining an isolated system; combining the phenomenon to analyze the entropy increase mechanism of the external environment, and revealing the energy dissipation mechanism of the mantis shrimp foreclaw; and designing a two-stage series connection bearing impact-resistant adapter ring through the obtained energy dissipation mechanism. The application realizes the optimization design of the impact resistance of the two-stage series connection bearing adapter ring.

Description

Technical Field

[0001] This invention relates to engineering thermodynamics and statistical mechanics, specifically to an optimized design method for a two-stage tandem bearing adapter ring based on the biomimetic design of the mantis shrimp's forepaw. Background Technology

[0002] As an arthropod, the mantis shrimp is characterized by its hard and tough exoskeleton and hammer-shaped claws, which demonstrate excellent performance in both hunting and self-defense. When hunting, it can strike its prey with its claws at speeds exceeding that of a bullet, killing it while leaving its own claws intact. When threatened, it can effectively protect itself using the hardness and toughness of its claws. Clearly, the mantis shrimp's claws possess excellent impact resistance.

[0003] In the prevailing trend of combining theoretical and applied research, bionics, as a product of this integration, has gradually become a major discipline used to solve both applied and theoretical problems. The mantis shrimp's forepaw serves as a prime example of bionics, and related research can profoundly influence the development of theoretical and applied disciplines such as materials science, structure, mathematics, physics, and biology. Revealing the energy dissipation mechanism of the mantis shrimp's forepaw can provide insights for research on high-strength structural design and high-strength material design, and offer references for theoretical research on impact resistance.

[0004] Current research on the impact resistance of mantis shrimp's forepaws has provided general explanations for their superior capabilities, but lacks a theoretical explanation of their impact resistance or an explanation of their energy dissipation mechanisms. To address this gap in theoretical analysis of the energy dissipation mechanisms in the impact resistance of mantis shrimp's forepaws, this invention proposes a method based on the second law of thermodynamics to analyze the energy dissipation mechanism of mantis shrimp's forepaws. This method explains the superior impact resistance of mantis shrimp's forepaws from the perspective of the second law of thermodynamics—the principle of entropy increase in isolated systems—and reveals their energy dissipation mechanism. Summary of the Invention

[0005] The purpose of this invention is to fill the gap in theoretical analysis of the energy dissipation mechanism in the impact resistance of the mantis shrimp's forepaw, promote the engineering application of the mantis shrimp's forepaw, and advance the theoretical research on the mantis shrimp's forepaw. This invention reveals the energy dissipation mechanism of the mantis shrimp's forepaw based on the principle of entropy increase in isolated systems, providing insights for research on high-strength structural design and high-strength material design, and offering a reference for theoretical research on impact resistance.

[0006] To achieve the above objectives, the present invention specifically adopts the following technical solution: A biomimetic design method for a bi-stage tandem bearing adapter ring based on the mantis shrimp's forepaw includes: analyzing the changes in the internal microstructure of the mantis shrimp's forepaw after impact; analyzing and defining an isolated system based on the conversion of work and heat between the internal structure of the mantis shrimp's forepaw and the external environment; combining impact phenomena and thermodynamic analysis to determine the entropy increase mechanism of the external environment in the isolated system, and drawing conclusions on the energy dissipation mechanism from both macroscopic and theoretical perspectives; analyzing the structure of the bi-stage tandem bearing adapter ring and performing a layered design; designing a hemispherical microtexture at the interface of the adapter ring to construct the adapter ring, wherein the hemispherical microtexture consists of several solid hemispherical protrusions that respectively contact the two layers of the annular surface and point contact of the adapter ring. The relative rotation of the layered structure is driven by the rotation of the bearing, thereby converting the external impact energy into heat energy and optimizing the impact resistance performance of the adapter ring.

[0007] Optionally, the analysis of the changes in the internal microstructure of the mantis shrimp's forepaw after being impacted includes: when the mantis shrimp's forepaw is impacted by an external force, the longitudinal fibers on the impact surface buckle and develop microcracks, the sinusoidal fibers in the impact area break and pull out, and the spirally arranged periodic regions deform.

[0008] Optionally, based on the conversion of work and heat between the internal structure of the mantis shrimp's forepaw and the external environment, the isolated system is analyzed and defined as follows: based on the heat transfer between the mantis shrimp's forepaw and the surrounding environment after being impacted by the external environment, the impact force and the mantis shrimp's forepaw are set as a thermodynamic system; and based on the conversion of work and heat between the internal structure of the mantis shrimp's forepaw, the thermodynamic system and the limited external environment area around the mantis shrimp's forepaw are set as an isolated system.

[0009] Optionally, combining the impact phenomenon and thermodynamic analysis, the entropy increase mechanism of the external environment in the isolated system includes: based on the impact energy of the mantis shrimp's forepaw being converted into heat by the internal structure of the forepaw and transferred to the external environment, and also converted into mechanical energy and absorbed by itself, the entropy increase of the thermodynamic system is determined from the second principle of thermodynamics and energy balance; and based on the irreversible process of the mantis shrimp's forepaw releasing heat to the outside world, the entropy increase of the external environment is determined to be caused by both entropy flow and entropy production, and the mathematical expression for the entropy increase of the external environment is constructed as follows: In the formula, and These are entropy flow and entropy production, respectively. The entropy increase in the external environment is caused by the release of heat from the thermodynamic system to the external environment, while the entropy production is caused by irreversible factors in an isolated system.

[0010] Optionally, the conclusions drawn from macroscopic and theoretical perspectives regarding energy dissipation mechanisms include: based on the thermal behavior of the mantis shrimp's forepaw after being subjected to external impact and the mechanical behavior of its internal fibers, it is analyzed that the mantis shrimp's forepaw, due to its internal layered structure, reduces the destructive force of external impact on its internal structure, guides the impact energy to non-critical areas, and converts mechanical energy into thermal energy. The thermal behavior includes an increase in the temperature of the environment surrounding the forepaw, and the mechanical behavior includes the buckling, breakage, pull-out, and deformation of fibers at different locations within the forepaw. From the perspective of the principle of entropy increase in isolated systems, the increase in the temperature of the external environment leads to a greater degree of molecular disorder in the external environment, thus increasing the entropy of the external environment. From the macroscopic thermodynamic definition, the mathematical expression for entropy is: In the formula, Q represents the absorbed heat, and T represents the ambient absolute temperature. Since both Q and T are greater than 0, therefore... >0; The entropy increase in the external environment originates from heat transfer within the mantis shrimp's forepaws. Within the thermodynamic system formed by the mantis shrimp's forepaws and the external impact force, the generated heat is transferred out of the system and into the external environment. This process is entropy flow, but because it involves the outflow of heat, therefore... This process leads to a decrease in the entropy of the thermodynamic system. However, due to irreversible dissipation in the thermodynamic system, this process results in an increase in entropy. The entropy caused by heat loss is part of this increase in entropy. Therefore, the total entropy of the thermodynamic system becomes positive, and the thermodynamic system ultimately experiences entropy increase. From the perspective of the system as a whole, the total entropy of the isolated system composed of the thermodynamic system and the external environment becomes positive, which is equivalent to the dissipation of impact energy. That is, the energy level of the mantis shrimp's front claw work is higher than the energy level of heat. The energy level of the external impact energy is reduced after passing through the mantis shrimp's front claw, and the energy is dissipated.

[0011] Optionally, the overall width of the adapter ring is 10mm, the inner diameter is 10mm, and the outer diameter is 26mm. The inner diameter of the smaller ring is 10mm and the outer diameter is 18mm, and the inner diameter of the larger ring is 18.004mm and the outer diameter is 26mm. The outer diameter of the smaller ring and the inner diameter of the larger ring are the structural interface between the two, separated by a hemispherical microtexture with a radius of 0.004mm. The outer diameter of the larger ring is tangent to the hemispherical microtexture.

[0012] Optionally, the total number of hemispherical microtextures is 400, divided into 20 columns, and distributed equidistantly in a circle around the axis of the transition ring. Each column has 20 hemispherical microtextures, and the distance between adjacent hemispherical microtextures is equal.

[0013] The beneficial effects of this invention are: This invention provides a method for analyzing the energy dissipation mechanism of the mantis shrimp's forepaw based on the principle of entropy increase in isolated systems. It explains the reason why the mantis shrimp's forepaw possesses excellent impact resistance through the second law of thermodynamics, reveals the energy dissipation mechanism of the mantis shrimp's forepaw, provides ideas for research on high-strength structural design and high-strength material design, and provides a reference for theoretical research on impact resistance. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings: Figure 1 Microscopic structure of the mantis shrimp's forepaw; Figure 2 This is a diagram of the overall structure of the adapter ring; Figure 3 This is a schematic diagram of a small-sized circular ring structure; Figure 4 This is a schematic diagram of a large-sized circular ring structure; Figure 5 This is a schematic diagram of the microtexture structure of a hemispherical object. Figure 6 A magnified view of the interface; In the figure, (1) is the adapter ring, (2) is the small-sized ring, (3) is the large-sized ring, and (4) is the hemispherical microtexture. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Example 1: An optimized design method for a two-stage tandem bearing adapter ring based on the biomimetic design of the mantis shrimp's forepaws, such as... Figure 1 This includes the following steps: S1, analyze the changes in the internal microstructure of the mantis shrimp's forepaw after it was impacted; like Figure 1 The excellent impact resistance exhibited by the mantis shrimp's forepaws comes from the special microstructure of its internal three regions: the longitudinal columnar impact surface, the sinusoidal impact region, and the spiral periodic region. When the mantis shrimp's forepaws are subjected to external impact, the longitudinal fibers on the impact surface bend and develop microcracks, the sinusoidal fibers in the impact region break and are pulled out, and the spiral periodic region undergoes large deformation.

[0017] S2, based on the transformation of work and heat between the internal structure of the mantis shrimp's forepaw and the external environment, we analyze and define an isolated system; Based on the phenomenon that the temperature of the mantis shrimp's forepaws rises significantly near their surface after being impacted, it can be inferred that there is a transfer of work between the forepaws and the impact force, and that work and heat are converted within the internal structure of the forepaws, resulting in heat transfer between the forepaws and their surrounding environment after impact. To establish an isolated system, the impact force and the mantis shrimp's forepaws can be considered a thermodynamic system, and this thermodynamic system, along with the limited external environment surrounding the forepaws, can be considered an isolated system.

[0018] S3, combining impact phenomena and thermodynamic analysis to determine the entropy increase mechanism of the external environment in the isolated system; Based on the phenomenon that the temperature of the external environment near the mantis shrimp's foreclaw rises rapidly after being impacted, it can be inferred that the thermodynamic system formed by the mantis shrimp's foreclaw and the impact force releases a large amount of heat to the external environment, causing the temperature to rise. This increases the degree of disorder of the microscopic molecules in the external environment, and from the perspective of the second law of thermodynamics, the entropy of the external environment in the isolated system increases. Furthermore, since the process of the mantis shrimp's foreclaw releasing heat to the external environment is irreversible, it can also be concluded that the increase in entropy of the external environment is caused by both entropy flow and entropy production. Entropy flow is caused by the release of heat from the thermodynamic system to the external environment, while entropy production is caused by irreversible factors in the isolated system. Let the increase in entropy of the external environment be... The mathematical expression for the increase in entropy of the external environment is: In the formula, and These are entropy flow and entropy production, respectively. Entropy flow refers to the entropy exchange caused by the release of energy from the pre-clamp to the external environment; this energy can be transferred back and forth. Entropy production refers to the additional entropy generated within the external environment caused by irreversible factors in an isolated system; this energy cannot be transferred back and forth. Therefore, the more entropy production energy, the better the structure's energy dissipation ability. This design aims to generate more entropy production (entropy production can be generated through the mechanical behavior of irreversible deformation of the structure).

[0019] S4 leads to conclusions about the energy dissipation mechanism from both macroscopic and theoretical perspectives; The mantis shrimp's forepaw exhibits several phenomena upon impact, including an increase in ambient temperature, fiber buckling, breakage, pull-out, and significant deformation at different locations within the forepaw. These phenomena suggest that the mantis shrimp's forepaw, due to its unique layered structure, undergoes significant deformation and friction upon impact, dissipating the impact energy as heat. This layered structure effectively reduces the destructive force of the impact on critical internal structures, directing the energy to less critical areas where mechanical and thermal energy are converted. This constitutes the macroscopic mechanism of energy dissipation in the mantis shrimp's forepaw. The buckling, breakage, pull-out, and significant deformation of the internal fibers are key to this energy dissipation mechanism and crucial for converting the impact energy into heat. The resulting heat is then transferred to the external environment through convection and conduction. Correspondingly, from the perspective of the principle of entropy increase in isolated systems, the increase in temperature of the external environment leads to a greater degree of molecular disorder in the external environment, thus increasing the entropy of the external environment. From the macroscopic thermodynamic definition, the mathematical expression for entropy is: In the formula, Q represents the absorbed heat, and T represents the absolute temperature of the environment. Since both Q and T are greater than 0, therefore... >0; The entropy increase in the external environment originates from heat transfer within the mantis shrimp's forepaws. Within the thermodynamic system formed by the mantis shrimp's forepaws and the external impact force, the generated heat is transferred out of the system and into the external environment. This process is entropy flow, but because it involves the outflow of heat, therefore... This process leads to a decrease in the entropy of the thermodynamic system. However, due to irreversible dissipation within the thermodynamic system, this process inevitably leads to an increase in entropy. This is the fundamental source of the system's entropy increase. The entropy caused by heat loss is part of this entropy increase. Therefore, the total entropy of the thermodynamic system becomes positive, and the thermodynamic system ultimately experiences entropy increase. From the perspective of the system as a whole, the total entropy of the isolated system composed of the thermodynamic system and the external environment becomes positive, which is equivalent to the dissipation of impact energy. Essentially, the mantis shrimp's forepaws possess the ability to convert high-quality energy into low-quality energy. The energy level of work is higher than that of heat. When external impact energy passes through the mantis shrimp's forepaws, its energy level is reduced, which is equivalent to energy dissipation.

[0020] S5, Analyze the structure of the double-stage tandem bearing transition ring and perform a layered design of the double-stage tandem bearing transition ring structure; A two-stage tandem bearing consists of two bearings of different sizes connected in series by an interference fit using an adapter ring. There are two types: type "I" and type "Z". This method only applies to the type "I" structure. Structurally, the type "I" adapter ring can be considered as a circular ring structure.

[0021] Since the mantis shrimp's foreclaw has a unique layered structure, which is one of the reasons for its excellent energy dissipation performance, and the "I"-shaped adapter ring has a circular structure, the double-stage tandem bearing adapter ring is layered.

[0022] S6, a hemispherical microtexture is designed at the interface of the transition ring to construct the transition ring; Because the mantis shrimp's forepaws undergo significant internal deformation and friction upon impact, guiding the impact energy into less critical areas and converting it into mechanical and thermal energy, a microtexture is designed within the layered structure. The rotation of bearings drives the relative rotation of the layered structure, causing the microtexture to undergo significant deformation and other mechanical behaviors through extensive friction, thus converting the external impact energy into thermal energy.

[0023] The transition ring is located in the intermediate connecting area between the inner and outer bearings of a double-stage tandem bearing. The original structure of the transition ring was a single circular ring. This invention redesigns the original circular ring structure into a combined circular ring structure composed of two rings of different sizes fitted together with an interference fit. A hemispherical protrusion is designed at the joint surface (interface) of the two rings. (Refer to...) Figures 2-6 The (double-stage tandem bearing) transition ring structure is composed of two layers of circular rings spliced ​​together. The interface is separated by a solid hemispherical protrusion, and the hemispherical microtexture has surface contact and point contact with the two layers of circular rings, respectively. The overall width of the adapter ring (1) is 10mm, the inner diameter is 10mm, and the outer diameter is 26mm. The adapter ring is made up of two rings of different sizes. The inner diameter of the smaller ring (2) is 10mm and the outer diameter is 18mm. The inner diameter of the larger ring (3) is 18.004mm and the outer diameter is 26mm. The outer diameter of the smaller ring (2) and the inner diameter of the larger ring (3) are the structural interface between the two. The interface is separated by a hemispherical microtexture (4) with a radius of 0.004mm. The outer diameter of the larger ring (3) is tangent to the hemispherical microtexture (4). There are a total of 400 hemispherical microtextures, which are divided into 20 columns and are distributed equidistantly around the axis of the adapter ring. Each column has 20 hemispherical microtextures (4), and the distance between adjacent hemispherical microtextures is equal. It should be noted that the hemispherical protrusion in this invention does not replace the balls in the inner and outer raceways, but is a biomimetic structure designed at the transition ring, and is unrelated to the balls.

[0024] The design concept of this invention is as follows: The mantis shrimp's forepaw possesses a unique microstructure that guides external impact energy into a non-critical region for energy dissipation. Through significant friction and irreversible structural deformation in this region, the impact energy is converted into a small amount of mechanical energy and a large amount of thermal energy, thus reducing the damage to the main structure and giving the shrimp excellent impact resistance. Inspired by the energy dissipation mechanism of the mantis shrimp's forepaw, this invention employs a guided energy dissipation design. A hemispherical microtexture is designed at the interface of the transition ring of a double-stage tandem bearing. The purpose is to guide the impact energy received by the bearing to this hemispherical microtexture at the interface (a non-critical region in the double-stage tandem bearing) for energy dissipation. The hemispherical microtexture generates significant friction and a small amount of deformation with the contact surface, converting most of the impact energy into thermal energy, thereby weakening the destructive force of the impact energy on the bearing and indirectly improving the impact resistance of the double-stage tandem bearing. This design does not only convert kinetic energy into thermal energy, but also generates both mechanical and thermal energy. However, the purpose of this design is to improve impact resistance. The impact resistance of a structure is equivalent to its ability to dissipate the impact energy it receives. Furthermore, structural damage after an impact is caused by mechanical energy, which originates from the external impact energy. Simultaneously, thermal energy also originates from impact energy (mechanical energy + thermal energy = impact energy). Therefore, to reduce the damage to the internal structure from external impact energy and improve impact resistance, this design aims to convert more impact energy into thermal energy, reducing the generation of mechanical energy. By designing hemispherical protrusions (hemispherical microtexture) at the interface within the transition ring, an active, irreversible conversion process between impact energy and heat can be created, reducing the conversion of impact energy into mechanical energy and thus reducing the degree of damage to the bearing as a whole.

[0025] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0026] The steps in the method of this invention can be adjusted, combined, or deleted according to actual needs. The technical features can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the embodiments are described. However, as long as the combinations of these technical features do not contradict each other, they should all be considered within the scope of this invention.

[0027] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for optimizing the design of a two-stage tandem bearing adapter ring based on the biomimetic foreplaw of a mantis shrimp, characterized in that, include: Analyze the changes in the internal microstructure of the mantis shrimp's fore claw after it is impacted; Based on the transformation of work and heat between the internal structure of the mantis shrimp's forepaw and the external environment, an isolated system is analyzed and defined. By combining the impact phenomenon and thermodynamic analysis of the entropy increase mechanism of the external environment in the isolated system, conclusions are drawn regarding the energy dissipation mechanism from both macroscopic and theoretical perspectives. The structure of the double-stage tandem bearing transition ring is analyzed, and a layered design is carried out for the structure of the double-stage tandem bearing transition ring. A hemispherical microtexture is designed at the interface of the transition ring to construct the transition ring. The hemispherical microtexture consists of several solid hemispherical protrusions that make contact with the two annular surfaces of the transition ring and point contact respectively. The relative rotation of the layered structure is driven by the rotation of the bearing, thereby converting the external impact energy into heat energy and optimizing the impact resistance performance of the transition ring. The overall width of the adapter ring is 10mm, the inner diameter is 10mm, and the outer diameter is 26mm. The inner diameter of the smaller ring is 10mm and the outer diameter is 18mm, while the inner diameter of the larger ring is 18.004mm and the outer diameter is 26mm. The outer diameter of the smaller ring and the inner diameter of the larger ring form the structural interface between them, which is separated by a hemispherical microtexture with a radius of 0.004mm. The outer diameter of the larger ring is tangent to the hemispherical microtexture. The total number of hemispherical microtextures is 400, divided into 20 columns, and distributed equidistantly in a circle around the axis of the transition ring. Each column has 20 hemispherical microtextures, and the distance between adjacent hemispherical microtextures is equal.

2. The optimized design method for a two-stage tandem bearing adapter ring based on the biomimetic foreplaw of a mantis shrimp, as described in claim 1, is characterized in that... Analysis of the changes in the internal microstructure of the mantis shrimp's forepaw after impact includes: When the mantis shrimp's forepaws are subjected to external impact, the longitudinal fibers on the impact surface bend and develop microcracks. The sinusoidal fibers in the impact area break and pull out, and the spirally arranged periodic areas deform.

3. The optimized design method for a two-stage tandem bearing adapter ring based on the biomimetic foreplaw of a mantis shrimp, as described in claim 1, is characterized in that... Based on the conversion of work and heat between the internal structure of the mantis shrimp's forepaw and the external environment, the isolated system is analyzed and defined as including: Based on the fact that the mantis shrimp's forepaws transfer heat to the surrounding environment after being impacted by external forces, the impact force and the mantis shrimp's forepaws are set as a thermal system. Based on the conversion of work and heat within the internal structure of the mantis shrimp's forepaw, the thermal system and the limited external environment surrounding the mantis shrimp's forepaw are defined as an isolated system.

4. The optimized design method for a two-stage tandem bearing adapter ring based on the biomimetic foreplaw of a mantis shrimp, as described in claim 1, is characterized in that... Combining impact phenomena and thermodynamic analysis, the entropy increase mechanism of the external environment in the isolated system includes: Based on the fact that the mantis shrimp's foreclaws and impact force form a thermodynamic system that releases a large amount of heat into the external environment, causing the external environment temperature to rise, thereby increasing the degree of disorder of the microscopic molecules in the external environment; and considering that the process of the mantis shrimp's foreclaws releasing heat into the external environment is irreversible, it is determined that the increase in entropy of the external environment is jointly generated by entropy flow and entropy production, and the mathematical expression for the increase in entropy of the external environment is constructed as follows: In the formula, and These are entropy flow and entropy production, respectively. The entropy increase in the external environment is caused by the release of heat from the thermodynamic system to the external environment, while the entropy production is caused by irreversible factors in an isolated system.

5. The optimized design method for a two-stage tandem bearing adapter ring based on the biomimetic foreplaw of a mantis shrimp, as described in claim 1, is characterized in that... The conclusions drawn from both macroscopic and theoretical perspectives regarding energy dissipation mechanisms include: Based on the thermal behavior and mechanical behavior of the mantis shrimp's forepaw after being subjected to external impact, it was analyzed that the mantis shrimp's forepaw reduces the destructive force of external impact on the internal structure due to its internal layered structure, guides the impact energy to non-critical areas, and converts mechanical energy into thermal energy. The thermal behavior includes the rise in ambient temperature around the forepaw, and the mechanical behavior includes the buckling, breakage, pull-out, and deformation of fibers at different locations inside the forepaw. From the perspective of the principle of entropy increase in isolated systems, the increase in temperature of the external environment leads to a greater degree of molecular disorder in the external environment, thus increasing the entropy of the external environment; From the perspective of macroscopic thermodynamics, the mathematical expression for entropy is: In the formula, Q represents the absorbed heat, and T represents the ambient absolute temperature. Since both Q and T are greater than 0, therefore... >0; The increase in entropy in the external environment originates from heat transfer within the mantis shrimp's forepaws. Within the thermodynamic system formed by the mantis shrimp's forepaws and the external impact force, the generated heat is transferred out of the system and into the external environment. This process is entropy flow, but because it involves the outflow of heat, This process leads to a decrease in the entropy of the thermodynamic system, but due to irreversible dissipation in the thermodynamic system, this process leads to an increase in entropy. The entropy caused by heat loss is part of the entropy increase, so the total entropy of the thermodynamic system becomes positive, and the thermodynamic system ultimately has an increase in entropy. From the perspective of the system as a whole, the total entropy change of the isolated system composed of the thermodynamic system and the external environment is positive, which is equivalent to the dissipation of impact energy. That is, the energy level of the mantis shrimp's front claw work is higher than the energy level of heat. The energy level of the external impact energy is reduced after passing through the mantis shrimp's front claw, and the energy is dissipated.

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