WO2022181577A1 - 回転機械評価装置、回転機械評価システム、回転機械評価装置のチューニング方法、及び、回転機械評価方法 - Google Patents
回転機械評価装置、回転機械評価システム、回転機械評価装置のチューニング方法、及び、回転機械評価方法 Download PDFInfo
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Program-control systems
- G05B19/02—Program-control systems electric
- G05B19/04—Program control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Program control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/002—Thermal testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0224—Process history based detection method, e.g. whereby history implies the availability of large amounts of data
- G05B23/0227—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions
- G05B23/0235—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions based on a comparison with predetermined threshold or range, e.g. "classical methods", carried out during normal operation; threshold adaptation or choice; when or how to compare with the threshold
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2111/00—Details relating to CAD techniques
- G06F2111/10—Numerical modelling
Definitions
- the present disclosure relates to a rotating machine evaluation device, a rotating machine evaluation system, a tuning method for a rotating machine evaluation device, and a rotating machine evaluation method.
- thermal stress occurs inside them.
- thermal stress becomes a factor that causes damage to the components of the rotating machine, and affects the service life. Therefore, thermal stress and damage are useful as evaluation values for evaluating the life of rotating machinery, and it is necessary to pay attention to them as monitoring items in the operation of rotating machinery.
- the casing As one method for obtaining such an evaluation value, for example, in a rotating machine provided with a rotor (rotating member) that can be rotated by high-temperature fluid and a casing (stationary member) that rotatably supports the rotor, the casing
- the temperature and thermal stress inside the rotor can be obtained by inputting the measurement results of the temperature sensor installed in the rotor as the surface temperature conditions of the radial one-dimensional heat transfer/structural rotor model prepared in advance.
- the finite element method FEM
- the model is a one-dimensional model in the radial direction, the evaluation value near the temperature sensor (that is, the temperature sensor and the axial direction are at approximately the same position)
- the method using the finite element method has better evaluation accuracy than the method using the heat transfer/structural rotor model, but the calculation Heavy load. Therefore, it is difficult to apply the evaluation value to real-time monitoring of rotating machines in operation.
- At least one embodiment of the present embodiment has been devised in view of the circumstances described above, and includes a rotating machine evaluation apparatus, a rotating machine evaluation system, and a rotating machine evaluation apparatus capable of accurately monitoring evaluation values in real time during operation of a rotating machine. It is an object of the present invention to provide a tuning method and a rotating machine evaluation method.
- a rotating machine evaluation device includes: a boundary condition calculation unit for calculating boundary conditions based on measured values of parameters relating to the operating state of the rotating machine; A storage unit for storing a degenerate model created based on a prediction model including a heat transfer model and a structural model of the rotating machine for predicting evaluation values of the rotating machine corresponding to the boundary conditions.
- a boundary condition calculation unit for calculating boundary conditions based on measured values of parameters relating to the operating state of the rotating machine
- a storage unit for storing a degenerate model created based on a prediction model including a heat transfer model and a structural model of the rotating machine for predicting evaluation values of the rotating machine corresponding to the boundary conditions.
- a method for tuning a rotating machine evaluation device includes: calculating boundary conditions based on measured values of parameters relating to operating conditions of the rotating machine; calculating an evaluation value corresponding to the measured boundary condition based on a degenerate model during operation of the rotating machine; with The degenerate model is created based on a prediction model including a heat transfer model and a structural model of the rotating machine for predicting evaluation values of the rotating machine corresponding to the boundary conditions.
- a rotating machine evaluation system in order to solve the above problems, a client terminal device;
- a rotating machine evaluation system comprising a rotating machine evaluation device communicable with the client terminal device, The client terminal device requesting means for requesting evaluation of the rotating machine from the rotating machine evaluation device, prepared,
- the rotating machine evaluation device includes: a boundary condition calculation unit for calculating a boundary condition based on measured values of parameters relating to an operating state of the rotating machine when a request is made by the request means;
- a storage unit for storing a degenerate model created based on a prediction model including a heat transfer model and a structural model of the rotating machine for predicting evaluation values of the rotating machine corresponding to the boundary conditions.
- an evaluation value calculation unit for calculating the evaluation value corresponding to the boundary condition calculated by the boundary condition calculation unit based on the degenerate model during operation of the rotating machine; Prepare.
- a rotating machine evaluation device capable of accurately monitoring an evaluation value in real time during operation of a rotating machine, a rotating machine evaluation system, a tuning method for the rotating machine evaluation device, and a rotating machine We can provide an evaluation method.
- FIG. 1 is a schematic configuration diagram of a rotating machine evaluation device according to one embodiment;
- FIG. It is a flow chart which shows a rotating machine evaluation method concerning one embodiment. It is an example of the evaluation result output from the result output part of FIG. It is another example of the evaluation result output from the result output part of FIG. It is a figure which shows the outline
- FIG. 9 is a schematic diagram showing the elongation of the rotor calculated as a structural index in step S402 of FIG. 8;
- FIG. 9 is a schematic diagram showing the elongation of the rotor calculated as a structural index in step S402 of FIG. 8;
- expressions that express shapes such as squares and cylinders do not only represent shapes such as squares and cylinders in a geometrically strict sense, but also include irregularities and chamfers to the extent that the same effect can be obtained.
- the shape including the part etc. shall also be represented.
- the expressions “comprising”, “comprising”, “having”, “including”, or “having” one component are not exclusive expressions excluding the presence of other components.
- a rotating machine to be evaluated by a rotating machine evaluation device or a rotating machine evaluation method will be described.
- a turbine that can be driven by a hot fluid is described below as an example of a rotating machine, the rotating machine may be any other device comprising at least a portion of a rotatable member.
- a steam turbine using steam as the high-temperature fluid is exemplified, but other high-temperature fluid such as gas may be used.
- FIG. 1 is a schematic diagram schematically showing the cross-sectional structure of the rotary machine 1.
- FIG. A rotary machine 1 is a steam turbine that uses high-temperature steam as a working fluid, and includes a casing 2 (chamber) and a rotor 4 .
- a casing 2 surrounds the intermediate portion of the rotor 4 .
- the rotor 4 is rotatably supported by radial bearings 6 on both sides of the casing 2 .
- the rotary machine 1 is configured as an axial flow turbine, and a plurality of rotor blade rows 8 are fixed to the rotor 4 while being spaced apart from each other in the axial direction of the rotor 4 .
- a plurality of stator blade rows 12 are fixed to the casing 2 via the blade ring 10, and a dummy ring 13 is fixed on the opposite side of the blade ring 10 in the axial direction. be done.
- the dummy ring 13 is provided with an inner gland 15 into which gland steam for cooling can flow.
- a cylindrical internal channel 14 is formed between the blade ring 10 and the rotor 4 , and the rotor blade row 8 and the stationary blade row 12 are arranged in the internal channel 14 .
- a steam inlet portion 2 a provided in the casing 2 communicates with the internal flow path 14 , and steam supplied from the steam inlet portion 2 a is guided to the internal flow path 14 .
- Each rotor blade row 8 is composed of a plurality of rotor blades (turbine rotor blades) arranged in the circumferential direction, and each rotor blade is fixed to the rotor 4 .
- Each stationary blade row 12 is composed of a plurality of stationary blades arranged in the circumferential direction of the rotor 4 , and each stationary blade is fixed to the blade ring 10 .
- Each row of stator blades 12 accelerates the flow of steam, and each row of rotor blades 8 converts steam energy into rotational energy of the rotor 4 .
- the rotor 4 is connected to, for example, a generator (not shown), and the rotor 4 drives the generator.
- FIG. 2 is a schematic configuration diagram of a rotating machine evaluation device 100 according to one embodiment.
- the rotating machine evaluation device 100 is composed of, for example, a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), and a computer-readable storage medium.
- a series of processes for realizing various functions is stored in a storage medium or the like in the form of a program, for example, and the CPU reads out this program to a RAM or the like, and executes information processing and arithmetic processing.
- the program is pre-installed in a ROM or other storage medium, provided in a state stored in a computer-readable storage medium, or distributed via wired or wireless communication means. etc. may be applied.
- Computer-readable storage media include magnetic disks, magneto-optical disks, CD-ROMs, DVD-ROMs, semiconductor memories, and the like.
- the rotating machine evaluation device 100 includes a measured value acquisition unit 102 , a boundary condition calculation unit 104 , a storage unit 106 , an evaluation value calculation unit 108 and a result output unit 110 .
- the measured value acquisition unit 102 is configured to acquire measured values of parameters related to the operating state of the rotary machine 1 .
- the rotary machine 1 includes a rotation speed sensor for measuring the rotation speed, a power generation output sensor for measuring the power output of a generator (not shown) connected to the rotor 4, and a steam temperature measuring sensor.
- a steam temperature sensor and a steam pressure sensor for measuring the steam pressure are arranged.
- the measured value acquisition unit 102 can acquire measured values of each parameter by receiving electrical signals from these sensors.
- the boundary condition calculation unit 104 is a configuration for calculating boundary conditions set for the degenerate model M stored in the storage unit 106 based on the measured values acquired by the measured value acquisition unit 102 .
- the degenerate model M is a model obtained by reducing the dimension (degenerate) while maintaining the essential behavior of the prediction model, and can greatly reduce the analysis time and data volume.
- the degenerate model M is stored in advance in the storage unit 106, and the evaluation value calculation unit 108 applies the boundary conditions calculated by the boundary condition calculation unit 104 to the degenerated model M read from the storage unit 106. Calculate the evaluation value.
- the result output unit 110 is configured to output evaluation results based on the evaluation values calculated by the evaluation value calculation unit 108 .
- FIG. 3 is a flow chart showing a rotating machine evaluation method according to one embodiment.
- the measured value acquiring unit 102 acquires measured values of parameters related to the operating state of the rotary machine 1 (step S100). Acquisition of measured values in step S100 is repeatedly performed while the rotating machine 1 is in operation. By sequentially using the measured values that are repeatedly acquired to calculate an evaluation value, which will be described later, the evaluation value for the rotary machine 1 can be calculated in real time.
- the boundary condition calculation unit 104 calculates boundary conditions based on the measured values obtained in step S100 (step S101).
- the boundary conditions are obtained by a predetermined arithmetic expression corresponding to the degenerate model M used for calculating the evaluation value.
- the rotation speed of the rotor 4, the power output of the generator (not shown), the steam temperature, the steam pressure, etc. are acquired as measured values, and the boundary conditions are calculated by inputting these into a predetermined arithmetic expression. be.
- the evaluation value calculation unit 108 accesses the storage unit 106 to read out the degenerate model M prepared in the storage unit 106 (step S102), and applies the boundary conditions calculated in step S101 to the degenerated model M An evaluation value is calculated (step S103).
- the degenerate model M used to calculate the evaluation value in step S103 is constructed by degenerating a predictive model that indicates the correlation between the boundary conditions and the evaluation value.
- a prediction model that serves as a basis for the degenerate model in this way typically includes a heat transfer model and a structural model of the rotary machine 1 .
- the predictive model can calculate the evaluation value with high accuracy based on the boundary conditions by, for example, the finite element method, but the calculation load is enormous, and as it is, it is not suitable for calculating the evaluation value in real time. Therefore, by constructing the degenerate model M by degenerating such a prediction model, it is possible to greatly reduce the computational load and to calculate the evaluation value in real time. A method for constructing the degenerate model M from the prediction model will be described in detail later.
- the result output unit 110 outputs the evaluation result based on the evaluation value calculated in step S103 (step S104).
- at least one of temperature, stress, and damage in each part of the rotor 4 is calculated as an evaluation value, and the temporal change thereof is output from the result output unit 110 .
- FIGS. 4A and 4B are examples of evaluation results output from the result output unit 110 in FIG.
- FIG. 4A how the stress in the rotor 4 calculated as the evaluation value changes over time is output, and the operator can monitor the stress in real time by referring to this.
- the threshold (proof stress) at which plastic deformation occurs is indicated by a dashed line, and it is shown that plastic deformation may occur when the stress, which is the evaluation result, exceeds the threshold at time t1 to t2. .
- FIG. 4B shows creep damage Dc and fatigue damage Df obtained from the stress of the rotor 4 calculated as evaluation values, and how the operating point of the rotating machine 1 changes over time.
- a region A in which the rotating machine 1 can operate normally and a region B in which an abnormality is highly likely to occur are separated by a boundary line L, and as the operating time of the rotating machine 1 elapses, A point is shown moving from region A to region B.
- FIG. 4B shows creep damage Dc and fatigue damage Df obtained from the stress of the rotor 4 calculated as evaluation values, and how the operating point of the rotating machine 1 changes over time.
- a region A in which the rotating machine 1 can operate normally and a region B in which an abnormality is highly likely to occur are separated by a boundary line L, and as the operating time of the rotating machine 1 elapses, A point is shown moving from region A to region B.
- FIG. 5 is a diagram showing an overview of the prediction model m
- FIG. 6 is a diagram showing a calculation flow in the prediction model m of FIG.
- the prediction model m includes a heat transfer model m1 and a structural model m2.
- the prediction model m of this example has a heat transfer equation C1 as a heat transfer model m1, and a deformation constitutive equation C2, a force balance equation C3, and a damage evolution equation C4 as a structural model m2.
- heat transfer equation C1, deformation constitutive equation C2, force balance equation C3, and damage evolution equation C4 are calculated, and temperature, stress, plastic strain, time evolution of damage Ask for
- the temperature (or heat load) is first calculated by the heat transfer equation C1 (step S200). Subsequently, in the deformation constitutive equation C2, the temperature (or thermal load) calculated by the heat transfer equation C1 and the stress (or displacement) calculated by the force balance equation C3 are input, and the plastic strain is calculated ( step S201). In the force balance equation C3, the stress (or displacement) is calculated by inputting the plastic strain calculated by the deformation constitutive formula C2 (step S202). Steps S201 and S202 are repeated until the plastic strain and stress (or displacement) that simultaneously satisfy the deformation constitutive equation C2 and the force balance equation C3 are found.
- step S203 the temperature (or heat load) calculated in step S200, the plastic strain calculated in step S201, and the stress (or displacement) calculated in step S202 for one cycle is prepared and input to the damage evolution formula C4.
- the damage evolution formula C4 calculates how the damage evolves based on the prepared temperature (or thermal load), stress (or displacement) and plastic strain for one step (step S204).
- the fatigue damage Df and the creep damage Dc after one cycle are obtained as the calculation result of step S205 (step S205).
- the heat transfer equation C1 included in the predictive model m is expressed by the following equation, assuming that the rotating machine 1 has a heat transfer surface S1, a radiation surface S2, and a volume V, as shown in FIG . 7A.
- the first term on the left side is a heat capacity term
- the second term on the left side is a heat conduction term
- the first term on the right side is a heat transfer term
- the second term on the right side is a radiation term.
- T temperature
- Tg fluid temperature (temperature of steam or gas)
- ⁇ density
- c specific heat
- ⁇ thermal conductivity
- HTC heat transfer coefficient
- J incident heat flux
- G radiation
- ⁇ T temperature variation
- S area.
- Equation ( 1 ) the heat transfer term (the second term on the right side ) of Equation ( 1 ) is obtained by dividing the heat transfer surface S 1 of FIG . , S 1 NHTC , it can be shown as follows.
- Equation ( 1 ) The radiation term ( second term on the right side) of Equation ( 1 ) is such that the radiation surface S 2 in FIG . , m ), (S 2 2,s , S 2 2,m ) . . . , (S NRD 2,s , S NRD 2,m ). can.
- the radiant heat QI is expressed by the following equation using the areas of A I 2,S , A I 2,m : division planes S I 2,s , and S I 2,m .
- ⁇ Stefan Boltzmann constant, e 1 I ,S 2 , e 2, I : emissivity.
- the spatial discretization equation by the finite element method is the following equation.
- T N-dimensional nodal temperature vector
- T *4 N-dimensional vector obtained by multiplying each component of the nodal temperature vector to the 4th power
- C, K, M I , R I N ⁇ N matrix generated by discretization
- E I N-dimensional vector resulting from discretization.
- N-th order truncated singular value decomposition (SVD: Singular Value Decomposition) is applied to the M ⁇ S matrix X, it is approximately decomposed as shown in FIG. 7D.
- X [T 1 , T 2 , .
- U h be the N ⁇ N h matrix U in the case
- Equation (5) the POD Galerkin projections of the heat capacity term, the heat conduction term, and the heat transfer term in Equation (5) are expressed by the following equations.
- ⁇ h is the degeneracy temperature (U h T T).
- DEIM Discrete Empirical Interpolation Method
- the modified constitutive formula C2 included in the prediction model m for example, the following formula using Norton's law can be used.
- the force balance equation C3 included in the prediction model m is represented by the following equation.
- ⁇ stress tensor
- p pressure
- n normal vector
- ⁇ density
- ⁇ angular velocity
- ⁇ linear expansion
- T temperature
- T 0 temperature at which thermal strain becomes
- ⁇ u virtual displacement
- ⁇ virtual strain tensor
- Such a force balance equation C3 can be degenerated by the integration point reduction method, for example, as shown in FIG. 7E. Applying the finite element method to formulas (14-1) to (14-9) and formula (15), obtaining the stress ⁇ and the displacement u in a plurality of analysis cases, and regarding the displacement u as a virtual displacement ⁇ u, A virtual distortion is obtained (step S300).
- C integration points are selected from the set of integration points p i , they are set to q j , and the weight of the positive value of q j is set to w j (step S302).
- the virtual work of the internal force is approximated by the following equation.
- step S303 the 'selection of C integration points' and 'their weights' that maximize the approximation accuracy of the above equation are determined. If the approximation accuracy of the optimum solution obtained in step S303 is sufficient, or if C reaches a predetermined natural number (step S304: YES), this is taken as the final solution (step S305). On the other hand, if neither condition is satisfied (step S304: NO), the number of integration points is increased by one (C ⁇ C+1), and the process returns to step S302.
- the force balance equation C3 shown in the above equation (15) is discretized by the finite element method and numerically integrated using integration points reduced only to the virtual work due to the internal force, and is expressed as the following equation.
- the left side is the internal force term
- the first term on the right side is the thermal load term
- the second term on the right side is the centrifugal force term
- the third term on the right side is the pressure term.
- u O-dimensional nodal displacement vector
- T N-dimensional nodal temperature vector
- T 0 N-dimensional nodal temperature vector at which thermal strain is
- ⁇ angular velocity
- p I pressure
- ⁇ M ⁇ M matrix
- ⁇ M ⁇ N matrices
- ⁇ and ⁇ I M-dimensional vectors.
- the degeneracy temperature ⁇ h the degeneracy displacement ⁇ s and the stress at the reduction integration point can be obtained. Temperature and displacement can be obtained by the following equations.
- stress GappyPOD, which is a technique for repairing missing data, can be used to restore stress values at other integration points from stress values at reduced integration points, thereby obtaining the entire stress field.
- the rotating machine evaluation apparatus 100 by calculating the evaluation value using the degenerate model M constructed from the prediction model m in this way, the calculation load is greatly reduced compared to the case where the prediction model m is used. can be reduced to As a result, it is possible to quickly calculate the evaluation value based on the measured values acquired during the operation of the rotary machine 1 and monitor the rotary machine 1 in real time.
- the degenerate model M is constructed based on the prediction model m.
- the calculation accuracy of the evaluation value by the degenerate model M may be improved by tuning the base prediction model m. Tuning of the prediction model m is performed by adjusting parameters included in the heat transfer model m1 of the prediction model m.
- the rotating machine evaluation device 100 shown in FIG. 2 includes a parameter adjustment unit 114 for performing such tuning of the prediction model m.
- the parameter adjustment unit 114 is provided as part of the configuration of the rotating machine evaluation device 100, and the predictive model m is tuned by the parameter adjustment unit 114 at a predetermined timing, and stored in the storage unit 106. The accuracy of the degenerate model M is improved.
- the rotating machine evaluation device 100 does not include such a parameter adjustment unit 114, and for example, an operator tunes the prediction model m so that the degenerate model M is constructed based on the prediction model m. may be updated to improve the evaluation accuracy.
- FIG. 8 is a flowchart showing a tuning method for the rotating machine evaluation device 100 according to one embodiment.
- the parameter adjustment unit 114 acquires measured values regarding the operating state from the rotary machine 1 (step S400). Acquisition of the measured value in step S400 is the same as acquisition of the measured value by the measured value acquiring unit 102 described above. Subsequently, the parameter adjustment unit 114 performs heat transfer analysis by applying the measured value acquired in step S400 to the heat transfer model m1 of the prediction model m to be tuned (step S401), and the structural index (estimated value) is calculated (step S402). In this embodiment, the elongation of the rotor 4 is used as the structural index, but other parameters may be used.
- the parameter adjustment unit 114 acquires the measured values of the structural indices calculated in step S402 (step S403).
- the actual measured value of the structural index may be obtained along with other parameters in step S400.
- the measured value of the elongation of the rotor 4 calculated in step S402 is acquired.
- FIG. 9A and 9B are schematic diagrams showing the elongation of the rotor 4 calculated as the structural index in step S402 of FIG.
- one end of the rotor 4 is fixed relative to the casing 2 and the elongation at the other end is taken as a structural indicator.
- the actual measured value of the elongation is obtained by measuring the relative distance R1 to the other end of the rotor 4 by an optical sensor installed on the inner surface of the casing 2, and measuring the extension of the casing 2 by another sensor.
- the relative distances R1, R2 to each end of the rotor 4 are measured by optical sensors located on the inner surface of the casing 2 when the ends of the rotor 4 are not clamped together, and other
- the parameter adjustment unit 114 determines whether the difference ⁇ R between the elongation (estimated value) calculated in step S402 and the measured elongation value obtained in step S403 is within the allowable value (step S404). If the difference ⁇ R exceeds the allowable value (step S404: NO), the parameter adjuster 114 changes the parameters included in the heat transfer model m1 (step S405).
- the parameter change in step S405 can also be automated using, for example, an optimization algorithm.
- step S405 it is possible to change the parameters related to the steam temperature condition included in the heat transfer model m1.
- Steam temperature conditions can be tuned, for example, from measured steam temperatures.
- effective steam temperature measurement points include (i) the steam inlet portion 2a for the blade ring 10 and the dummy ring 14, the vicinity of the welded portion if the rotor 4 has a welded portion, and (ii) the blade (iii) an inner ground 15;
- a parameter related to heat transfer coefficient included in the heat transfer model m1 can be changed.
- the heat transfer coefficient in the rotary machine 1 is closely related to the operating state of the rotary machine 1.
- the heat transfer coefficient ⁇ is expressed by the following formula.
- ⁇ rate heat transfer coefficient evaluation value at rating
- P rate pressure evaluation value at rating
- P pressure evaluation value
- n index.
- the heat transfer coefficient ⁇ is represented by the following formula.
- ⁇ vacuum is the heat transfer rate evaluation value in a vacuum.
- the heat transfer coefficient ⁇ is represented by the following formula. Note that ⁇ air is the heat transfer coefficient evaluation value in vacuum breaking.
- parameter adjustment section 114 can adjust parameters ⁇ 1 to ⁇ 3 included in equations (24-1) to (24-3).
- step S401 the process returns to step S401, and the heat transfer analysis is performed again using the heat transfer model m1 with the changed parameters.
- Such repetition is repeated until the difference ⁇ R is within the allowable value. That is, the parameters included in the heat transfer model m1 are adjusted so that the predicted value of the structural index and the measured value of the structural index match.
- step S404 when the difference ⁇ R is within the allowable value (step S404: YES), the predicted FEM model m including the heat transfer model m1 whose parameter is changed in step S405 is degenerated again (step S406), and stored in the storage unit 106.
- the degenerate model M is updated (step S407).
- the rotating machine evaluation device 100 has been described, but without being limited to such a configuration, a client terminal device (not shown) that can communicate with the rotating machine evaluation device 100 can obtain the evaluation result in step S104. It may be configured to output. Further, in response to a request from a client terminal device to evaluate a rotating machine, the processing in the flow chart showing the rotating machine evaluating method shown in FIG. 3 or the tuning method shown in FIG. 8 may be executed. Further, the operator may input an instruction for tuning the prediction model m to the client terminal device.
- a rotating machine evaluation device includes: a boundary condition calculation unit (for example, the boundary condition calculation unit 104 in the above embodiment) for calculating boundary conditions based on measured values of parameters related to the operating state of the rotating machine (for example, the rotating machine 1 in the above embodiment); including a heat transfer model (for example, the heat transfer model m1 in the above embodiment) and a structural model (for example, the structural model m2 in the above embodiment) of the rotating machine for predicting the evaluation value of the rotating machine corresponding to the boundary conditions.
- a boundary condition calculation unit for example, the boundary condition calculation unit 104 in the above embodiment
- a structural model for example, the structural model m2 in the above embodiment
- a storage unit (for example, the storage unit 106 )When, During operation of the rotating machine, an evaluation value calculation unit (for example, the evaluation value in the above embodiment) calculates the evaluation value corresponding to the boundary condition calculated by the boundary condition calculation unit based on the degenerate model. calculation unit 108); Prepare.
- the evaluation value corresponding to the boundary condition calculated from the measured values of the parameters relating to the operating state of the rotating machine is calculated based on the degenerate model.
- a degenerate model is created by degenerating a prediction model, and can significantly reduce the computational load. Therefore, an evaluation value can be calculated accurately and quickly during operation of a rotating machine. This allows the operator to monitor the evaluation values in real time during operation of the rotating machine.
- the degenerate model is created by reducing integration points in the integral formula included in the prediction model.
- the prediction model includes a heat transfer equation (for example, the heat transfer equation C1 in the above embodiment), a modified constitutive equation (for example, the modified constitutive equation C2 in the above embodiment), a force balance equation (for example, the force balance equation C3 in the above embodiment) ), and a damage evolution formula (for example, damage evolution formula C4 in the above embodiment),
- the degenerate model is created by POD-Gallerkin projection of at least one term included in the heat transfer equation or the force balance equation among the prediction models.
- the evaluation value can be calculated with good accuracy, and the calculation A degenerate model with less load can be created favorably.
- the evaluation value includes stress generated in the rotating machine or damage to the rotating machine calculated based on the stress.
- the predicted value of the structural index of the rotating machine calculated by applying the measured value of the parameter to the heat transfer model matches the measured value of the structural index. It further includes a parameter adjuster (for example, the parameter adjuster 114 in the above embodiment) that adjusts the included parameters.
- the parameters included in the heat transfer model are adjusted (tuned) so that the predicted values of the structural index obtained from the parameters match the actual measured values. This makes it possible to improve the accuracy of the heat transfer model, and as a result, it is possible to effectively improve the calculation accuracy of the evaluation value by the degenerate model constructed from the prediction model including the heat transfer model.
- the structural index is the amount of elongation along the axial direction of a rotating member (for example, the rotor 4 in the above embodiment) provided in the rotating machine.
- the above parameters are adjusted. can be preferably performed.
- the parameter adjuster adjusts a parameter related to heat transfer coefficient selected according to an operation mode of the rotating machine.
- a tuning method for a rotating machine evaluation device includes: A method for tuning a rotating machine evaluation device according to any one aspect of (1) to (4) above, comprising: In the heat transfer model, the predicted value of the structural index of the rotating machine calculated by applying the measured value of the parameter to the heat transfer model matches the measured value of the structural index. Adjust the included parameters.
- the parameters included in the heat transfer model are adjusted (tuned) so that the predicted values of the structural index obtained from the parameters match the actual measured values. This makes it possible to improve the accuracy of the heat transfer model, and as a result, it is possible to effectively improve the calculation accuracy of the evaluation value by the degenerate model constructed from the prediction model including the heat transfer model.
- the structural index is the amount of elongation along the axial direction of a rotating member (for example, the rotor 4 in the above embodiment) provided in the rotating machine.
- the above aspect (9) by adopting the amount of elongation along the axial direction of a rotating member (for example, a turbine rotor) of a rotating machine as a structural index used when performing tuning, the above parameters can be obtained. Adjustments can be conveniently made.
- a rotating member for example, a turbine rotor
- a parameter related to heat transfer coefficient is selected according to the operation mode of the rotating machine.
- a rotating machine evaluation method includes: a step of calculating boundary conditions based on measured values of parameters relating to the operating state of a rotating machine (for example, the rotating machine 1 of the above embodiment); calculating an evaluation value corresponding to the measured boundary conditions based on a reduced model (for example, reduced model M in the above embodiment) during operation of the rotating machine; with
- the degenerate model uses a heat transfer model (for example, the heat transfer model m1 in the above embodiment) and a structural model (for example, the structure in the above embodiment) of the rotating machine to predict the evaluation value of the rotating machine corresponding to the boundary conditions. It is created based on a prediction model (for example, the prediction model m in the above embodiment) including the model m2).
- the evaluation value corresponding to the boundary condition calculated from the measured values of the parameters relating to the operating state of the rotating machine is calculated based on the degenerate model.
- a degenerate model is created by degenerating a prediction model, and can significantly reduce the computational load. Therefore, an evaluation value can be calculated accurately and quickly during operation of a rotating machine. This allows the operator to monitor the evaluation values in real time during operation of the rotating machine.
- a rotating machine evaluation system includes: a client terminal device; A rotating machine evaluation system comprising a rotating machine evaluation device communicable with the client terminal device, The client terminal device requesting means for requesting evaluation of the rotating machine from the rotating machine evaluation device, prepared,
- the rotating machine evaluation device includes: a boundary condition calculation unit (for example, the boundary condition calculation unit 104 in the above embodiment) for calculating a boundary condition based on a measured value of a parameter relating to the operating state of the rotating machine when a request is made by the requesting means; including a heat transfer model (for example, the heat transfer model m1 in the above embodiment) and a structural model (for example, the structural model m2 in the above embodiment) of the rotating machine for predicting the evaluation value of the rotating machine corresponding to the boundary conditions.
- a boundary condition calculation unit for example, the boundary condition calculation unit 104 in the above embodiment
- a structural model for example, the structural model m2 in the above embodiment
- a storage unit (for example, the storage unit 106 )When, During operation of the rotating machine, an evaluation value calculation unit (for example, the evaluation value in the above embodiment) calculates the evaluation value corresponding to the boundary condition calculated by the boundary condition calculation unit based on the degenerate model. calculation unit 108); Prepare.
- the rotating machine evaluation system includes a client terminal device and a rotating machine evaluation device that are communicable with each other.
- the rotating machine evaluation device evaluates the above-described rotating machine in response to a request by the request means provided in the client terminal. It can be carried out.
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Abstract
Description
本願は、2021年2月25日に日本国特許庁に出願された特願2021-029114号に基づき優先権を主張し、その内容をここに援用する。
回転機械の運転状態に関するパラメータの計測値に基づいて境界条件を算出するための境界条件算出部と、
前記境界条件に対応する前記回転機械の評価値を予測するために前記回転機械の伝熱モデル及び構造モデルを含んで構成される予測モデルに基づいて作成された縮退モデルを記憶するための記憶部と、
前記回転機械の運転中に、前記縮退モデルに基づいて、前記境界条件算出部で算出された前記境界条件に対応する前記評価値を算出するための評価値算出部と、
を備える。
回転機械の運転状態に関するパラメータの計測値に基づいて境界条件を算出する工程と、
前記回転機械の運転中に、縮退モデルに基づいて、前記計測された境界条件に対応する評価値を算出する工程と、
を備え、
前記縮退モデルは、前記境界条件に対応する前記回転機械の評価値を予測するために前記回転機械の伝熱モデル及び構造モデルを含んで構成される予測モデルに基づいて作成される。
クライアント端末装置と、
前記クライアント端末装置と通信可能な回転機械評価装置と
を備える回転機械評価システムであって、
前記クライアント端末装置は、
前記回転機械評価装置へ回転機械の評価を要求するための要求手段を、
備え、
前記回転機械評価装置は、
前記要求手段による要求がなされると、前記回転機械の運転状態に関するパラメータの計測値に基づいて境界条件を算出するための境界条件算出部と、
前記境界条件に対応する前記回転機械の評価値を予測するために前記回転機械の伝熱モデル及び構造モデルを含んで構成される予測モデルに基づいて作成された縮退モデルを記憶するための記憶部と、
前記回転機械の運転中に、前記縮退モデルに基づいて、前記境界条件算出部で算出された前記境界条件に対応する前記評価値を算出するための評価値算出部と、
を備える。
例えば、「ある方向に」、「ある方向に沿って」、「平行」、「直交」、「中心」、「同心」或いは「同軸」等の相対的或いは絶対的な配置を表す表現は、厳密にそのような配置を表すのみならず、公差、若しくは、同じ機能が得られる程度の角度や距離をもって相対的に変位している状態も表すものとする。
例えば、「同一」、「等しい」及び「均質」等の物事が等しい状態であることを表す表現は、厳密に等しい状態を表すのみならず、公差、若しくは、同じ機能が得られる程度の差が存在している状態も表すものとする。
例えば、四角形状や円筒形状等の形状を表す表現は、幾何学的に厳密な意味での四角形状や円筒形状等の形状を表すのみならず、同じ効果が得られる範囲で、凹凸部や面取り部等を含む形状も表すものとする。
一方、一の構成要素を「備える」、「具える」、「具備する」、「含む」、又は、「有する」という表現は、他の構成要素の存在を除外する排他的な表現ではない。
尚、予測モデルから縮退モデルMを構築するための手法については、後に詳述することとする。
まず予測モデルmに含まれる伝熱方程式C1は、図7Aに示すように、回転機械1が熱伝達面S1、輻射面S2及び体積Vを有すると仮定すると、次式により表される。
式(1)のうち左辺第1項は熱容量項であり、左辺第2項は熱伝導項であり、右辺第1項は熱伝達項であり、右辺第2項は輻射項である。尚、T:温度、Tg:流体温度(蒸気やガスの温度)、ρ:密度、c:比熱、κ:熱伝導率、HTC:熱伝達率、J:入射熱流束、G:射度、δT:温度の変分、S:面積を示す。
ここで輻射熱QIは、AI 2、S、AI 2、m:分割面SI 2,s、SI 2,mの面積を用いて、次式で表される。
尚、σ:ステファンボルツマン定数、e1 I ,S、e2, I:放射率である。
ここで、T:N次元節点温度ベクトル、T*4:節点温度ベクトルの各成分を4乗したN次元ベクトル、C,K,MI,RI:離散化により生じるN×N行列、EI:離散化で生じるN次元ベクトルである。
尚、φh:縮退温度(Uh TT)である。
また式(5)の輻射項に、DEIM(Discrete Empirical Interpolation Method)を適用すると次式となる。
ここでPは、各列が基本単位ベクトルN×Nq行列である。
ここでσ:応力テンソル、p:圧力、n:法線ベクトル、ρ:密度、ω:角速度、F0:使用している角速度の単位系でω=1の時の遠心力、α:線膨張係数テンソル、T:温度、T0:熱歪みが0になる温度、δu:仮想変位、δε:仮想歪みテンソルである。
尚、力のつり合い方程式C3では、実際には、上式と拘束条件から変位を計算するが、ここでは説明の簡略化のために、拘束条件は暗に考慮されているものとする。
式(17)では左辺が内力項であり、右辺第1項が熱荷重項であり、右辺第2項が遠心力項であり、右辺第3項が圧力項である。尚、u:O次元節点変位ベクトル、T:N次元節点温度ベクトル、T0:熱歪みが0となるN次元節点温度ベクトル、ω:角速度、pI:圧力、Π:M×M行列、Θ:M×N行列、Λ及びΓI:M次元ベクトルである。
とする。この時,式(17)の各項のPODガラーキン射影は、それぞれ次式となる。
尚、φsは縮退変位(=Us Tu)であり、φh,0=Uh TT0である。
また応力に関しては、データ欠損部を修復する手法であるGappyPODを用いて,低減積分点の応力値から、それ以外の積分点応力値を復元することで、応力場全体を求めることができる。
尚、αrate:定格での熱伝達率評価値、Prate:定格での圧力評価値、P:圧力評価値、n:指数である。
また回転機械1が停止状態(内部流路14が真空に近い圧力)にある場合、熱伝達率αは以下の式で表される。
尚、αvacuum:真空での熱伝達率評価値である。
また回転機械1が停止状態(内部流路14に空気が流入し真空破壊)にある場合、熱伝達率αは以下の式で表される。
尚、αair:真空破壊での熱伝達率評価値である。
この場合、パラメータ調整部114は、式(24-1)~式(24-3)に含まれるパラメータα1~α3を調整対象にすることができる。
また、クライアント端末装置から回転機械を評価する要求に応じて、図3に示す回転機械評価方法や図8に示すチューニング方法を示すフローチャートにおける処理を実行してもよい。
さらに、前述のオペレータはクライアント端末装置に対して、予測モデルmのチューニングの指示入力を行う構成としてもよい。
その他、本開示の趣旨を逸脱しない範囲で、上記した実施形態における構成要素を周知の構成要素に置き換えることは適宜可能であり、また、上記した実施形態を適宜組み合わせてもよい。
回転機械(例えば上記実施形態の回転機械1)の運転状態に関するパラメータの計測値に基づいて境界条件を算出するための境界条件算出部(例えば上記実施形態の境界条件算出部104)と、
前記境界条件に対応する前記回転機械の評価値を予測するために前記回転機械の伝熱モデル(例えば上記実施形態の伝熱モデルm1)及び構造モデル(例えば上記実施形態の構造モデルm2)を含んで構成される予測モデル(例えば上記実施形態の予測モデルm)に基づいて作成された縮退モデル(例えば上記実施形態の縮退モデルM)を記憶するための記憶部(例えば上記実施形態の記憶部106)と、
前記回転機械の運転中に、前記縮退モデルに基づいて、前記境界条件算出部で算出された前記境界条件に対応する前記評価値を算出するための評価値算出部(例えば上記実施形態の評価値算出部108)と、
を備える。
前記縮退モデルは、前記予測モデルに含まれる積分式における積分点を低減することにより作成される。
前記予測モデルは、伝熱方程式(例えば上記実施形態の伝熱方程式C1)、変形構成式(例えば上記実施形態の変形構成式C2)、力のつり合い方程式(例えば上記実施形態の力のつり合い方程式C3)、及び、損傷発展式(例えば上記実施形態の損傷発展式C4)を含み、
前記縮退モデルは、前記予測モデルのうち前記伝熱方程式又は前記力のつり合い方程式に含まれる少なくとも1つの項をPODガラーキン射影することにより作成される。
前記評価値は、前記回転機械に生じる応力、又は、前記応力に基づいて算出される前記回転機械の損傷を含む。
前記パラメータの前記計測値を前記伝熱モデルに適用することで算出される前記回転機械の構造的指標の予測値と、前記構造的指標の実測値とが一致するように、前記伝熱モデルに含まれるパラメータを調整するパラメータ調整部(例えば上記実施形態のパラメータ調整部114)を更に備える。
前記構造的指標は、前記回転機械が備える回転部材(例えば上記実施形態のロータ4)の軸方向に沿った伸び量である。
前記パラメータ調整部は、前記回転機械の運転モードに応じて選択される熱伝達率に関するパラメータを調整する。
上記(1)から(4)のいずれか一態様に係る回転機械評価装置をチューニングするための回転機械評価装置のチューニング方法であって、
前記パラメータの前記計測値を前記伝熱モデルに適用することで算出される前記回転機械の構造的指標の予測値と、前記構造的指標の実測値とが一致するように、前記伝熱モデルに含まれるパラメータを調整する。
前記構造的指標は、前記回転機械が備える回転部材(例えば上記実施形態のロータ4)の軸方向に沿った伸び量である。
前記回転機械の運転モードに応じて選択される熱伝達率に関するパラメータを調整する。
回転機械(例えば上記実施形態の回転機械1)の運転状態に関するパラメータの計測値に基づいて境界条件を算出する工程と、
前記回転機械の運転中に、縮退モデル(例えば上記実施形態の縮退モデルM)に基づいて、前記計測された境界条件に対応する評価値を算出する工程と、
を備え、
前記縮退モデルは、前記境界条件に対応する前記回転機械の評価値を予測するために前記回転機械の伝熱モデル(例えば上記実施形態の伝熱モデルm1)及び構造モデル(例えば上記実施形態の構造モデルm2)を含んで構成される予測モデル(例えば上記実施形態の予測モデルm)に基づいて作成される。
クライアント端末装置と、
前記クライアント端末装置と通信可能な回転機械評価装置と
を備える回転機械評価システムであって、
前記クライアント端末装置は、
前記回転機械評価装置へ回転機械の評価を要求するための要求手段を、
備え、
前記回転機械評価装置は、
前記要求手段による要求がなされると、前記回転機械の運転状態に関するパラメータの計測値に基づいて境界条件を算出するための境界条件算出部(例えば上記実施形態の境界条件算出部104)と、
前記境界条件に対応する前記回転機械の評価値を予測するために前記回転機械の伝熱モデル(例えば上記実施形態の伝熱モデルm1)及び構造モデル(例えば上記実施形態の構造モデルm2)を含んで構成される予測モデル(例えば上記実施形態の予測モデルm)に基づいて作成された縮退モデル(例えば上記実施形態の縮退モデルM)を記憶するための記憶部(例えば上記実施形態の記憶部106)と、
前記回転機械の運転中に、前記縮退モデルに基づいて、前記境界条件算出部で算出された前記境界条件に対応する前記評価値を算出するための評価値算出部(例えば上記実施形態の評価値算出部108)と、
を備える。
2 ケーシング
2a 蒸気入口部
4 ロータ
6 ラジアル軸受
8 動翼列
10 翼環
12 静翼列
13 ダミーリング
14 内部流路
15 インナーグランド
100 回転機械評価装置
102 計測値取得部
104 境界条件算出部
106 記憶部
108 評価値算出部
110 結果出力部
Dc クリープ損傷
Df 疲労損傷
M 縮退モデル
m 予測モデル
m1 伝熱モデル
m2 構造モデル
Claims (12)
- 回転機械の運転状態に関するパラメータの計測値に基づいて境界条件を算出するための境界条件算出部と、
前記境界条件に対応する前記回転機械の評価値を予測するために前記回転機械の伝熱モデル及び構造モデルを含んで構成される予測モデルに基づいて作成された縮退モデルを記憶するための記憶部と、
前記回転機械の運転中に、前記縮退モデルに基づいて、前記境界条件算出部で算出された前記境界条件に対応する前記評価値を算出するための評価値算出部と、
を備える、回転機械評価装置。 - 前記縮退モデルは、前記予測モデルに含まれる積分式における積分点を低減することにより作成される、請求項1に記載の回転機械評価装置。
- 前記予測モデルは、伝熱方程式、変形構成式、力のつり合い方程式、及び、損傷発展式を含み、
前記縮退モデルは、前記予測モデルのうち前記伝熱方程式又は前記力のつり合い方程式に含まれる少なくとも1つの項をPODガラーキン射影することにより作成される、請求項1又は2に記載の回転機械評価装置。 - 前記評価値は、前記回転機械に生じる応力、又は、前記応力に基づいて算出される前記回転機械の損傷を含む、請求項1から3のいずれか一項に記載の回転機械評価装置。
- 前記パラメータの前記計測値を前記伝熱モデルに適用することで算出される前記回転機械の構造的指標の予測値と、前記構造的指標の実測値とが一致するように、前記伝熱モデルに含まれるパラメータを調整するパラメータ調整部を更に備える、請求項1から4のいずれか一項に記載の回転機械評価装置。
- 前記構造的指標は、前記回転機械が備える回転部材の軸方向に沿った伸び量である、請求項5に記載の回転機械評価装置。
- 前記パラメータ調整部は、前記回転機械の運転モードに応じて選択される熱伝達率に関するパラメータを調整する、請求項5又は6に記載の回転機械評価装置。
- 請求項1から4のいずれか一項の回転機械評価装置をチューニングするための回転機械評価装置のチューニング方法であって、
前記パラメータの前記計測値を前記伝熱モデルに適用することで算出される前記回転機械の構造的指標の予測値と、前記構造的指標の実測値とが一致するように、前記伝熱モデルに含まれるパラメータを調整する、回転機械評価装置のチューニング方法。 - 前記構造的指標は、前記回転機械が備える回転部材の軸方向に沿った伸び量である、請求項8に記載の回転機械評価装置のチューニング方法。
- 前記回転機械の運転モードに応じて選択される熱伝達率に関するパラメータを調整する、請求項8又は9に記載の回転機械評価装置のチューニング方法。
- 回転機械の運転状態に関するパラメータの計測値に基づいて境界条件を算出する工程と、
前記回転機械の運転中に、縮退モデルに基づいて、前記計測された境界条件に対応する評価値を算出する工程と、
を備え、
前記縮退モデルは、前記境界条件に対応する前記回転機械の評価値を予測するために前記回転機械の伝熱モデル及び構造モデルを含んで構成される予測モデルに基づいて作成される、回転機械評価方法。 - クライアント端末装置と、
前記クライアント端末装置と通信可能な回転機械評価装置と
を備える回転機械評価システムであって、
前記クライアント端末装置は、
前記回転機械評価装置へ回転機械の評価を要求するための要求手段を、
備え、
前記回転機械評価装置は、
前記要求手段による要求がなされると、前記回転機械の運転状態に関するパラメータの計測値に基づいて境界条件を算出するための境界条件算出部と、
前記境界条件に対応する前記回転機械の評価値を予測するために前記回転機械の伝熱モデル及び構造モデルを含んで構成される予測モデルに基づいて作成された縮退モデルを記憶するための記憶部と、
前記回転機械の運転中に、前記縮退モデルに基づいて、前記境界条件算出部で算出された前記境界条件に対応する前記評価値を算出するための評価値算出部と、
を備える、回転機械評価システム。
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| DE112022000033.3T DE112022000033T5 (de) | 2021-02-25 | 2022-02-22 | Bewertungsvorrichtung einer rotierenden maschine, bewertungssystem einer rotierenden maschine, abstimmungsverfahren für eine bewertungsvorrichtung einer rotierenden maschine, und bewertungsverfahren einer rotierenden maschine |
| KR1020237009283A KR102881268B1 (ko) | 2021-02-25 | 2022-02-22 | 회전 기계 평가 장치, 회전 기계 평가 시스템, 회전 기계 평가 장치의 튜닝 방법, 및, 회전 기계 평가 방법 |
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| JP7529590B2 (ja) | 2024-08-06 |
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